Harriman Alaska Expedition (1899).

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fourth lanceolate, with two annulations below the middle. Superior
claws (fig. 55) long, slender, tapering, feebly curving, outer surface
unidentate two-fifths from the apex ; inner margins with a pair of teeth
at about one-fourth, and a second pair at one-half the distance from the
apex (only two teeth show in a profile aspect of the claw) ; inferior
claw two-thirds as long as the other, lanceolate, acuminate, with a stout
knobbed subapical tenent hair as long as the claw itself, and with a
long stiff basal spine borne on the rounded inner margin ; an extra long
subapical hair occurs on the tibia. Furcula white, attaining the mouth ;
segments related as 3 : 5 : 2 ; dentes each with a lateral series of stiff
setae, of which the proximal alone is simple, the others becoming suc-
cessively shorter and serrately compound (fig. 56) ; all the setae are
simple, though, in small individuals ; mucrones (fig. 56) long, slen-
dar, concave, with twenty to thirty rounded teeth on either margin.
Dorsum clothed with numerous short stiff setae and several long spin-
ous hairs ; stiff setae on antennae and legs. Maximum length, 2. 24
mm.

Type. Cat. No. 5434, U. S. Nat. Museum.

Described from twenty-four types : thirteen, Sitka, June, 1899 (Nos.
64, 71); six, Yakutat, June, 1899 (Nos. 57, 58); three, Berg Bay,
June 10, 1899 (No. 72) ; one, Kodiak (No. 65) ; one, Fox Point,
July, 1899 (No. 67).

Papirius palmatus is most nearly allied to P. ater L. (Tull. 1871,
p. 146; 1872, p. 34, taf. 3, figs. 26-36).



[103] APTERYGOTA IOI

MACHILIS ARCTICA sp. nov.
(PI. v, figs. 6-10 ; PI. vm, figs. 57, 58.)

Body (fig. 6) annulated with alternating bands of dark brown and
pale yellow. Head colored as represented in fig. 57. Eyes circu-
lar in outline, contiguous along one-fifth the inner margin, or for a
distance equal to about one-third the diameter of an eye. Antennae
one-quarter longer than the body ; hairs white ; the basal ring and the
following seven segments are, in relative lengths, as 5 : 25 : 10 : 7 : 3 : 4 :
2:4; basal ring (fig. 7) yellow, bordered with brown ; basal segment
cylindrical, twice as long as broad, brown ; remaining segments yel-
low, obscurely banded with brown. Maxillary palpi (fig. 8) seven-
jointed, as usual, with segments related as 4:5:5:8:8:7:6; first
segment constricted near the base, with a lateral finger-like process
and a globose apex ; remaining segments simple, cylindrical, yellow,
with the following brown markings (fig. 8) : A basal patch on segment
two, a distinct basal ring on segment four, a diffuse basal ring on seg-
ments five and six and a subapical patch on segment five. Labial
palpi (fig. 9) with segments related as 3 :5 :5 ; first segment brown,
clavate, with a short apical process ; second yellow, cylindrical, three
times as long as it is broad ; third yellow, strongly clavate. Body
slender ; the relative lengths of the successive segments, measured along
the median dorsal line, are 9:18:10:10:9:7:9:10:11:11:11:
10:7; thorax feebly arched; coxae (fig. 10) brown; trochanter yel-
low; femur brown, with yellow apex; tibia brown; tarsus brown,
basally and apically; claws and cerci brown. Median cercus one-
quarter longer than the body, or nearly as long as the antennas ; lateral
cerci nearly one-third as long as the median cercus. From a perfect
specimen were taken the following measurements of relative lengths :
body, 8; antennae, n ; median cercus, 10 ; lateral cerci, 3.

The scales are so variable in size and form as to be of no specific
value, at least in this species; the cuticular figures, however (fig. 58),
will assist in distinguishing this form. Length, 8 mm.

Type. Cat. No. 5433, U. S. Nat. Museum.

Nine types : three, Muir Glacier ("hillside to right"), June n,
1899 (No. 68) ; five, Popof Island, 1899 (Nos. 59, 66) ; one, Sitka,
June, 1899 (No. 61).

I have found no species to which M. arctica is closely allied. Its
most distinctive characters are the relative lengths of body, antennae
and cerci, the coloration of the head, form and position of the eyes
and the color and form of the antennal and palpal segments.



102 FOLSOM [ IO 4]



BIBLIOGRAPHY.

Absolon, K.

1900 Studie o jeskynnich supinuskach [Studies on Moravian Cave Aptery-
gota]. Vestnik Klubu prir Prostejove, R. 3, pp. 5-39, figs. 1-24, i pi.

Becher, E.

1886 Insekten von Jan Mayen. Beob. Ergeb., bd. 3, pp. 59-66, pi. 5.

Bourlet.

1839 Me"moire sur les Podures. Mem. soc. sc. agric. arts Lille, pt. I, pp.

377-417, i pi.
1841-2 Me"moire sur les Podurelles. Me"m. soc. agric. etc. Nord. Sep., 1843,

Douai, 78 pp., i pi.

Carpenter, G. H. and Evans, W.

1899 The Collembola and Thysanura of the Edinburgh District. Proc. r.
phys. soc. Edinburgh, vol. 14, pp. 221-266, pis. 5-8.

Carpenter, G. H.

1900 Collembola from Franz-Josef Land. Sc. proc. r. Dublin soc., vol. 9
(n. s.). pt. 3, pp. 271-278, 18 figs.

Dalla Torre, K. W. v.

1895 Die Gattungen und Arten der Apterygogenea (Brauer). Sep. 46 Prog.
k. k. St.-Gym. Innsbruck, 23 pp.

Fabricius, 0.

1780 Fauna Groenlandica, pp. 211-214. Hafniae et Lipsiae.

Gervais, P.

1844 In Walckenaer, Histoire naturelle des insectes apteVes, t. 3, pp. 377-456,
atlas pis. 50-52. Paris.

Gmelin, J. F.

1788-93 In Linne, Systema Naturae, ed. 13. Lipsiae.

Kieffer, J. J.

1900 Beitrag zur Kenntniss der um Bitsch vorkommenden Collembolen.
Berl. ent. Zeits., bd. 45, hft. 1-2, pp. 113-114.

Lie-Pettersen, 0. J.

1897 Norges Collembola. Bergens mus. aarb. (1896), no. 8, 24 pp., 2 pis.

1898 Apterygogenea in Sogn und Nordfjord 1897 u. 1898 eingesammelt.
Bergens mus. aarb., no. 6, 18 pp., i pi.

Linnceus, C.

1746 Fauna Suecica, ed. I, pp. 342-344. Stockholmiae.
1761 Fauna Suecica, ed. 2, pp. 472-474. Stockholmiae.

Lubbock, J.

1862 Notes on the Thysanura. Pt. 2. Trans. Linn. soc. Lond., vol._23, pt.

3, pp. 589-601, pi. 59.
1873 Monograph of the Collembola and Thysanura. . 255 (pp., 78 pis.

London.



[lO$] APTERYGOTA IC>3

MacGillivray, A. D

1891 A Catalogue of the Thysanura of North America. Can. Ent., vol. 23,
pp. 267-276.

1896 The American Species of Isotoma. Can. Ent., vol. 28, pp. 47-58.
Meinert, F.

1897 Neuroptera, Pseudoneuroptera, Thysanopoda, Mallophaga, Collembola,
Suctoria, Siphunculata, Groenlandica. Vidensk. Med. naturh. Foren.
Kjobenhavn (1896), pp. 167-173.

Miiller, 0. F.

1776 Zoologiae Danicae Prodromus, pp. 183-184. Havniae.

Nicolet, H.

1841 Recherches pour servir a 1'histoire des Podurelles. Extr. nouv. me"m.

soc. helv. sc. nat., vol. 6, 84 pp., 9 pis.
1847 Essai sur une classification des insectes apteres de 1'ordre des Thysan-

oures. Ann. soc. ent. France, se*r. 2, t. 5, pp. 335-395, pis. 5, 6.

Oudemans, J. T.

1890 Apterygota des Indischen Archipels. Weber, Zool. Ergeb., bd. I, hft.
i, pp. 73-92, taf. 6, 7. Leiden.

Packard, A. S.

J 873 Synopsis of the Thysanura of Essex County, Mass., with Descriptions

of a few extralimital forms. Fifth ann. rept. trust. Peab. acad., pp.

23-5I-
Parona, C.

1875 Delle Poduridi e specialmente di quelle raccolte a Pavia. Ann. sc. r.

ist. tec. Pavia, pp. 87-119, 2 pis.
1878 Collembola. Saggio di un Catalogo delle Poduridi italiane. Atti. soc

ital. sc. nat., vol. 21, pp. 559-611. Sep., 53 pp.
1883 Di alcune Collembola e Thysanura raccolte dal Professore P. M. Ferrari,

con cenno corologico delle Collembola e Thysanura italiane. Ann.

mus. civ. st. nat. Geneva, vol. 18, pp. 453-464.
1888 Res Ligusticse VI. Collembole e Tisanuri finora riscontrate in Liguria.

Ann. mus. civ. st. nat. Geneva, ser. 2, vol, 6 (26), pp. 133-1541 tav.

I, 2.

Reuter, 0. M.

1891 Podurider fran nordvestra Sibirien, samlade af J. R. Sahlberg. Ofv.
finsk. vet. soc. forh., bd. 33, pp. 226-229.

1895 Apterygogenea Fennica. Acta soc. faun, flora fenn., bd. n, no. 4, pp.
1-35, taf - *> 2.

Schaffer, C.

1896 Die Collembola der Umgebung von Hamburg und benachbarter Gebiete.
Mitt, naturh. mus. Hamburg., jhg. 13, pp. 147-216, taf. 1-4.

1898 Die Collembola des Bismarck-Archipel nach der Ausbeute von Prof. F.
Dahl. Arch. Naturg., jhg. 64, bd. I, hft. 3, pp. 393-425, taf. n, 12.

igoort Die arktischen und subarktischen Collembola. Fauna Arctica, bd. I,

lief. 2, pp. 257-258.
igood Ueber wiirttembergische Collembola. Jahreshefte. Vereins vaterl.

Naturk. Wurttemberg, bd. 56, pp. 245-280, taf. 6.



104 FOLSOM [ I0 6]

Scherbakof , A. M.

I8g8 Einige Bemerkungen iiber Apterygogenea, die bei Kiew 1896-1897

gefunden wurden. Zool. Anz., bd. 21, pp. 57-65, 9 figs.
i8g83 [Materials for the apterygogenea fauna in the vicinity of Kief.] 31

pp., 3 pis. Kief. (In Russian.)

iSgga Zur Collembolen-Fauna Spitzbergens. Zool. Anz., bd. 22, p. 47, 3 figs.
1899* [Collembola.] 6pp., i pi. Kief.

SchStt, H.

1891 Nya nordiska Collembola. Ent. tidsk., arg. 12, pp. 191-192, 2 figs.
1894 Zur systematik und verbreitung palsearctischer Collembola. Kongl.

sven. vet. akad. hand., bd. 25, no. n, 100 pp., 7 pis.
1896 North American Apterygogenea. Proc. Cal. acad. sc., ser. 2, vol. 6,

pp. 169-196, pis. 16-18.

TSmosvary, 0.

1882 Adatok hazank Thysanura-faundjahoz. Math. term, kb'zlem, Magyar
Ak., vol. 18, pp. 119-130, i pi.

Tullberg, T.

1871 Fdrteckning ofver Svenska Podurider. Ofv. k. vet. akad. forh., arg. 28,
no. i, pp. 143-iSS'

1872 Sveriges Podurider. K. sven. vet. akad. hand., bd. 10, no. 10, 70 pp.
12 pis.

1876 Collembola borealia. Ofv. k. vet. akad. forh., arg. 33, no. 5, pp. 23-42,
taf. 8-1 1.

Uzcl, J.

1891 Thysanura Bohemiae. Sitzber. k. boh. Gesell. Wiss., bd. 2, pp. 3-82,
taf. i, 2.

Wahlgren, E.

1899 Ueber die von der Schwedischen Polarexpedition 1898 gesammelten

Collembolen. Ofv. k. vet. akad. forh., arg. 56, no. 4, pp. 335-340.
1899 Beitrag zur Kenntniss der Collembola-Fauna der ausseren Scharen. Ent.

tidsk., arg. 20, hft. 2-3, pp. 183-193.



PLATE VI.
[Proc. Wash. Acad. Sci., Vol. IV, PI. IV.]

FIG. i. Neanura gigantea Tull. (X 2 )

2. " ornata, sp. nov. (X 60)

3. Anurida amorita, sp. nov. (X 18).

4. Isotoma viridis Bourl., type (X 13)'

5. ' . " 4 var. arctica Schott (X ").

[108] (106)



[PR. WASH. A. S., IV, PL. V]



H. A. E. VOL. VIII, PLATE VI




POLSOM, DEL.



HELIOTYPE CO., BOSTON.



ALASKA APTERYGOTA



PLATE VII.
[Proc. Wash. Acad. Sci., Vol. IV, PI. V.]

FIG. 6. Machilis arcttca, sp. nov. (X).

7. " " " " antenna (X 30).

8. " " " " left maxillary palpus (X 30).
9- " " " " right labial palpus (X 30).

10. " left mid leg (X3).

[no] (108)



[PR. WASH. A. S., IV, PL. V]



H. A. E. VOL. VIII, PLATE VII




FOLSOM, DEL.



ALASKA APTERYGOTA



PLATE VIII.
[Proc. Wash. Acad. Sci., Vol. IV, PI. VI.]

FIG n. Neanura gigantea Tull.; eyes of left side (X I2 7)-

12. " " " left postantennal organ (X 434)-

13. " " " left aspect of hind foot (X 99)-

14. " ornata sp. nov.; head; eyes indicated by e, e, e (X99)-

15. " " " " left aspect of left antenna (X 127).

16. " " " " ventral aspect of head (X6o)-

17. " " " " metanotal setae (X 434)-

1 8. " " " " right aspect of left forefoot (X 367).

19. Anurida amorita sp. nov.; eyes and postantennal organ of right side

(X200).

20. Anurida amorita sp. nov.; left postantennal organ (X434)-

21. " " " right " ' (X434)- ( fi S s - 2O
and 21 are from the same individual.)

22. Anurida amorita sp. nov.; dorsal aspect of right antennal organ
(X367).

23. Anurida amorita sp. nov.; left mid foot (X2OO)

24. " " " " right aspect of right fore foot (X 300).

[112] (no)



. vVASH. A. S., U, PL. Vl]



H. A. E. VOL. VIII, PLATE VIII




tt



FOLSOM, DEL.



KEUOTYPE CO.



ALASKA APTERYGOTA



PLATE IX.

[Proc. Wash. Acad. Sci., Vol. IV, PI. VII.]

FIG. 35. Aphorura octopunctata Tull.; right postantennal organ, etc. ( X 3^7).

26. " " " dorsal aspect of right antennal organ
(X434)-

27. Aphorura octopunctata Tull.; left aspect of left hind foot ( X 3^7).

28. " " " left aspect of left anal spine ( X 357)-

29. " dentata sp. nov.; represents arrangement of dorsal pseudo-
celli ( X 2O )>

30. Aphorura dentata sp. nov. ; right postantennal organ ( X 434)>

31. " " " " deeper structure of postantennal organ
(X434)-

32. Aphorura dentata sp. nov.; base of right antenna ( X 127).

33. " " " " dorsal aspect of right antennal organ
(X434)-

34 Aphorura dentata sp. nov. ; left aspect of right hind foot ( X 200).

35. " " MM dorsal aspect of anal spines ( X 200). ["

36. " " " right aspect of right anal spine ( X 200).

37. Isotoma fimetaria (L.) Tull.; antenna ( X 60).

38. " " left aspect of right hind foot ( X 434).
39- " " " " left mucro ( X 434)-

40. " viridis Bourl., var. arctica Schott; eyes and postantennal or-
gan of right side (X 20).

41. Isotoma viridis Bourl., var. arctica Schott; left aspect of left fore foot
( X 200).

42. Isotoma viridis Bourl., var. arctica Schott; right aspect of right
mucro ( X 434)-

[114] (112)



H. A. E. VOL. VIII, PLATE IX




HELIOTYPE CO.



ALASKA APTERYGOTA



PLATE X.

[Proc. Wash. Acad. Sci., Vol. IV, PI. VIII.]

FIG. 43. Entomobrya kincaidi sp. nov.; eyes of right side (X374)-

44. " " " " left aspect of left hind foot (X 434).

45. " " " " left aspect of left mucro (X 434)-

46. Tomocerus niger Bourl., type; right aspect of right fore foot (X367)'

47. " " " " dental spines (X 200).

48. " " " var. arc/z'c#s Schott; eyes of right side (X 367).

49. " " " " " " right aspect of left hind
foot (X 367)-

50. Tomocerus niger Bourl., var. arcticus Schott ; dental spines (X 200). '

51. " " " " " " doubled dental spines

(X200).

52. Tomocerus niger Bourl., var. arcticus Schott ; dental spines slightly ab-
normal (X 200).

53. Tomocerus niger Bourl., var. americanus Schott ; dental spines (X 200).

54. Paptrius palmatus sp. nov.; eyes of left side (X 127).

55. " " " " left aspect of left hind foot (X 367).

56. " " " " left aspect of left mucro, etc., (X 200).

57. Machilis arctica sp. nov.; dorsal aspect of head (X28).

58. " " " " cuticular figure (X434)-

[116] (114)



.VASH. A. S., !V, PL. Vlll]



E. VOL. VIII, PLATE X




FOLSOM, DEL.



HELIOTYPE CO.



ALASKA APTERYGOTA



ORTHOPTERA OF THE EX
PEDITION



("5)



The following paper on the Orthoptera of the Expedition, by A. N.
Caudell, Division of Entomology, U. S. Department of Agriculture,
was originally published in the Proceedings of the Washington
Academy of Sciences, vol. n, pp. 511-512, Dec. 20, 1900. It is
here reprinted from the same electrotype plates, so that it may be
quoted exactly as if it were the original. The original pagination
has been preserved and transferred to the inner or hinge side of the
page, where it is enclosed in brackets, thus [512] ; while the consecu-
tive pagination of the present volume has been added in the usual
place. The present headpiece and title have been substituted for the
running heading of the Academy's Proceedings and the original title,
which was : Papers from the Harriman Alaska Expedition, xv.
Entomological Results (g) : Orthoptera. No other alterations have
been made.

EDITOR.



(116)




ORTHOPTERA OF THE EXPEDITION

BY A. N. CAUDELL

THE large collection of insects obtained during the Harri-
man Alaska Expedition by Professor Kincaid contained only a
single species of Orthoptera, as follows :

Melanoplus borealis Fieber.

Melanoplus borealis FIEBER, Lotos, in, p. 120, 1853. SCUDDER, Rev. Mela-
nop., p. 270, 1897.

Professor Kincaid secured five adults, three males and two
females, and nine nymphs, at Kukak Bay, Alaska Peninsula
(July 3, 1899). They were all taken within a few feet of a
small pool in a sphagnum swamp. This pool, which was about
ten feet in diameter, was surrounded by a miscellaneous vege-
tation, in which the locusts lived. The specimens were cap-
tured by causing them to leap into the water, when they were
easily secured. They were preserved in spirits. A large scope
of country surrounding this spot was carefully gone over by
the collector during the succeeding fortnight and many similar
pools visited, but not another locust was seen. This would in-
dicate that this species is quite local in its occurrence.



Il8 CAUDELL. [5 12 ]

The nymphs, which are apparently in the last stage, usually
have the outer surface of the posterior femora wholly black on
the basal two-thirds, generally relieved by two oblique pale
bands, and the inner surface marked by two oblong fuscous
spots.

This species has been recorded from the Northern United
States, Labrador, Greenland, and Norway.



APHIDID^ OF THE EX-
PEDITION



("9)



The following paper on the Aphididae of the Expedition, by Theo.
Pergande, was originally published in the Proceedings of the Wash-
ington Academy of Sciences, vol. n, pp. 513-517, Dec. 20, 1900.
It is here reprinted from the same electrotype plates, so that it may be
quoted exactly as if it were the original. The original pagination has
been preserved and transferred to the inner or hinge side of the page,
where it is enclosed in brackets, thus [514]; while the consecutive
pagination of the present volume has been added in the usual place.
The present headpiece and title have been substituted for the running
heading of the Academy's Proceedings and the original title, which
was : Papers from the Harriman Alaska Expedition, xvi. En-
tomological Results (10): Aphididce. No other alterations have
been made.

EDITOR.



(120)





APHIDID^ OF THE EXPEDITION

BY THEO. PERGANDE

THIS paper is based upon a small collection of plant lice ob-
tained in Alaska by Professor Trevor Kincaid during the Har-
riman Expedition in 1899.

The material thus brought together comprises four species,
one of them European, while the remaining three appear to be
new ; at least I failed to identify them with any of our described
forms. It is greatly to be regretted that the migratory female
was obtained with only two of them, that no colorational notes
were made of the living insects before immersion in alcohol,
and that no attempt was made to ascertain the name of the host
plants on which they were feeding. The descriptions of the
new species will therefore be rather defective and incomplete,
though I hope they will enable future students to recognize
them.

NECTAROPHORA CAUDATA sp. nov.

Winged viviparous female : general color apparently green or yel-
lowish green. Antennae black; the two basal joints dusky, their base
and base of the third pale. Eyes brown. The head, a somewhat
lunate spot at the posterior margin of the prothorax, the mesothoracic



122 PERGANDE [5*4]

lobes and sternal plate, posterior margin of the scutellum, two small
roundish spots on the metathorax, a transverse row of three small
linear spots on the first abdominal segment, a narrow, transverse band
about the middle of the abdomen, a dorso- lateral row of three transr
verse spots in front of and two smaller spots between the nectaries of
a brownish or dusky coloration. Legs brownish yellow, base of femora
greenish yellow ; both the femora and tibia? change gradually to a darker
brown towards the apex. Tarsi black. Nectaries and tail concolorous
with the abdomen, with tip of nectaries blackish. The wings were
very much mutilated, though the subcosta appears to have been green-
ish or greenish yellow at base and shading gradually to brownish yel-
low towards the stigma, which appears to have been greenish or yel-
lowish green ; veins black.

Length of body about 3.4 mm. ; expanse of wings about 10 mm. ;
length of antennas almost 4 mm. ; of the nectaries nearly 0.4 mm. ; and
of the tail a little over 0.2 mm. The two basal joints of the antennas,
as usual, shortest, each of them slightly over o.i mm., the first one
being slightly the longest; the third joint measures 0.8 mm. in length,
the fourth nearly 0.7, the fifth a little over 0.5 mm., and the sixth with
its spur 1.2 mm. in length. The hairs of the antennas and abdomen
are very short, simple and sparse, while those of the tibias are prom-
inent and spine-like. The nectaries are slightly tapering and much
shorter than usual in this genus, not reaching to the end of the body,
while the tail is unusually broad and but slightly constricted beyond
the middle.

Apterous female : General coloration similar to that of the winged
form ; eyes brown, antennas black, the two basal joints pale, the third
joint brownish. Legs and nectaries brownish yellow, base of femora
greenish, apex of the tibias, of the nectaries and the tarsi black. There
are no markings on the abdomen, except a dorso-lateral row of five or
six minute, impressed, dusky dots each side in front of the nectaries.

Length, 3.6 to 4 mm. to the tip of the tail ; antennas rather short,
barely reaching to nectaries and about 3 mm. in length. The third
joint measures almost 0.7 mm., the fourth somewhat over 0.4 mm.,
the fifth 0.4 mm., and the sixth with its spur 0.8 mm. in length.
There are from one to four small sensoria a little above the base of
the third joint. The nectaries and tail are subequal in length, or with
the tail, as in some specimens, distinctly longer than the nectaries ; the
tail measures about 0.4 mm. in length and is much broader than in
the winged form.

The winged form of this species resembles, on account of the mark-



[515] APHIDID^E 123

ings of its abdomen, Nectarophora granaria Kirby ; it is, however,
larger, with much shorter nectaries and much broader tail, while the
apterous form, on account of the short nectaries comes near Nectaro-
phora fulvce Oestl., though it is considerably larger and differs be-
sides in the conspicuously broad tail.

Taken at Juneau, Alaska.

Type. Cat. no. 5274, U. S. National Museum.

NECTAROPHORA INSULARIS sp. nov.

Apterous female: General color evidently green. Eyes brown;
antennae black, the two basal joints, and the basal two-thirds or more
of joints three and four pale. Legs pale, the coxae brown, apex of
tibiae, the tarsi and the tip of nectaries dusky to black. The body is
marked with a subdorsal row of nine small dusky spots, of which those
on the prothorax and mesothorax are elongated ; there are also two me-
diodorsal spots on the metathorax; four still smaller dorso-lateral
spots in front of nectaries and four minute ventro-lateral spots. In some
of the immature specimens the nectaries are almost black.

Length of body to tip of tail 3 to 3.4 mm., antennae rather long,
reaching to or beyond tip of tail and about 4 mm. in length. Length
of nectaries 0.7 to 0.8 mm. ; tail about 0.3 mm. Length of third an-
tennal joint about 0.7 mm. ; fourth joint 0.6 mm. ; fifth joint 0.5 mm.,
and the sixth, with its spur, 2 to 3 mm. in length, the spur being
much longer than joint three. The first joint is very stout and almost
twice the length of the second ; the third joint is provided with one to
three small sensoria near its base. Nectaries slender, slightly tapering
and curving outwards. Hairs of antennae minute and simple, those
of the tibiae stout and spine-like, a few of them sometimes slightly
thickened at the tip.

This species resembles somewhat Nectarophora pisi Kalt., but is
much larger, the legs shorter and stouter, the nectaries shorter and the
tail broader.

Obtained on St. Paul Island, Bering Sea.

Type. Cat. no. 5275, U. S. National Museum.

NECTAROPHORA EPILOBII sp. nov.

Apterous female: Color apparently dark reddish or brownish.
Eyes brown. Head, antennae, nectaries, coxae, terminal third of fem-
ora and tibia?, the tarsi and anal lobes black, remaining parts of legs
dark yellowish ; tail yellow. There is a black or dusky band on the



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PERGANDE



prothorax and mesothorax, a longitudinal dusky mark each side of the
mesothoracic band, transverse rows of minute black dots on the abdo-
men, and a large black spot at the base of the nectaries posteriorly.

Length of body, exclusive of the tail, 3 to 3.4 mm. Length of an-
tennae 3.5 mm.; nectaries 0.7 mm.; tail 0.6 mm. The third joint
of the antennae measures 1.2 mm.; the fourth joint 0.6 mm.; the
fifth 0.5 mm., and the sixth, with its spur, 1.2 mm.

The third antennal joint is provided with a row of nine to ten prom-
inent sensorial tubercles near its basal one-third. Nectaries stout and
tapering ; tail prominent, almost as long as nectaries, densely covered
with sharp points and provided each side with five or six small
notches, which give rise to a fine, long and curved hair. Hairs of an-
tennae and legs stout and spine-like, those of the body rather long,
slender and simple.

In general appearance this species resembles very much Nectaro-
phora millefolii Fab., but is larger and not so hairy as that species.

Found upon a species of Epilobium on Popof Island, Alaska.

Type. Cat. no. 5276, U. S. National Museum.


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Online LibraryHarriman Alaska Expedition (1899)Harriman Alaska series. vol. I-V, VIII-XIV (Volume 8) → online text (page 9 of 17)