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Two new American species of the genus Ethmia

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(1)

OF WASHINGTON, VOLUME

XII, 1910.

53

TWO NEW AMERICAN SPECIES OF THE GENUS ETHMIA.

[Lepidoptera, Ethmiidas]

BY AUGUST BUSCK.

Ethmia monachella, new

species.

Labial palpi

weak:

secondjoint clothed with spreading black hairs:

terminaljoint short,black. Face, head,andbasaljoint ofantenna?deep black; antenna- dark fuscous.

Thorax

deep black. Forewings with a broad,longitudinal,straight-edged blackish

brown

streak from base to apex,above which a narrow, pale yellowishcostal edge and below which a broad, grayish yellow dorsal streak.

Around

the apical edgeis a regu- larseries ofdeep black marginaldots,threeofwhich are above thecen- traldarkstreak,two or three in it,and sixorsevenbelowit. Inthe pale dorsal partof the

wing

aretwo smallblack dots,one atbasal fourthand one on the middle of the wing.

Hindwings

semi-transparent, smoky, black, with lighter yellowish dorsal cilia.

Abdomen

deep black, with brightorangetips to thesix posterior segments andwith bright orange genitalia. Anterior

and

middle legs black, with narrowwhite tarsal an- nulations; posterior legsblack, with bright orange tibial tuft and with whitetarsal annulations.

Alarexpanse, 20

mm.

Habitat: Boulder, Colorado

(S.

A. Rohwer,

coll.).

Type: Male, No.

12883,

U.

S.

National Museum.

This

species

belongs

to

the group umbrimarginella Busck and

allies,

but

is easily

recognized by the

light costal

edge above the

central

longitudinal dark

streak.

Ethmia hammella, new

species.

Labial palpi white,smooth.

Face

and head white. Antenna?yellow-

ish.

Thorax

and patagia deep bluish black with light straw-yellow posterior tips. Forewings shining light straw-yellow, sprinkled with bluishblack scales and with deepbluish black markings; extreme base and a small costal spot near base bluish black: alarge quadrangular bluish black dorsal spot near base; three roundspotsonthe disk of the

same

color, twoofwhich are close together, nearlyconfluent,near costa: thethirdlower and farther outonthe middleof the wing.

The

apical and especially the terminal edge of the wing broadlybluish black, with twosmall round dotspreceding;

beyond

the upperofthese, justbefore apex,is an ill-defined blotch of white scales. Ciliayellowish fuscous.

Abdomen

dark brown, each joint with conspicuouslight ochreous pos- terioredge.

Hindwings

blackish fuscous, darkesttowards the tip,with

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54 PROC. ENT.

SOC.

WASH., VOL.

XII, l!JlO.

lighter cilia. Legs dark brown, with ochreous tarsi.

Hind

tibia also ochreous.

Alarexpanse, L'L'

mm.

Habitat:

Tuis,

Costa

Rica,

5,800

feet altitude

(W. Schaus).

Type: No. 12844, U.

S.

National Museum.

A very

distinct species,

with remarkably broad wings.

TWO NEW SPECIES OF LAETILIA RAGONOT.

[Lepidoptera,Pyralidte, Phycitinae.]

BY HARRISON

G.

DYAR.

Laetilia

myersella; new

species.

Gray, the scaling rather coarse, the palegray scales

somewhat

inter- mixed with black; basal line appearingas two black spots atthe base of forewing; inner line ofthe ground-color rather broad, waved, edged narrowlywith black within and broadly so outwardly, theshadewiden- ing

somewhat

above inner margin; discal dots large,conjoined into a rounded

mark

; outer line of the ground-colorslightly flexuous, edged with black on bothsides

; a

row

ofconfluent black spotsat thebaseof thefringe.

Hind wing

pale fuscous, the fringewhitish.

Expanse, 14 to 15

mm.

Ten specimens,

Rockville,

Pennsylvania, May

27, 1909,

bred from

scale insects

on pine

(P.

R. Myers);

1

specimen, Tryon, North Carolina (W.

F.

Fiske).

Type: No.

12827,

U.

S.

National Museum.

Laetilia

eremiellaV new

species.

Fore

wing

pale gray,nearly white, shading

somewhat

darker along the innermargin; baseofthe wingfilledin with blackish scales; inner

band

broad, black,onthe costalhalfofthewingonly; discal dots round, black,separated; outer lineof the ground-color, situated near themar- gin, crenulate,edgedwith black on both sides narrowly, the outer edg- ingfaint; a

row

ofconfluent terminal dots.

Hind wing

whitish, semi- pellucid, tinged with fuscous on theveins and margin; fringe whitish.

Expanse, 18

mm.

One specimen, Stockton, Utah, August

1,

1907

(T.

Spald-

ing,

through

Dr.

G. W.

Dietz).

Type: No. 12828, U.

S.

National Museum.

Actual

date

of

issue,

March

21, igio.

Referensi

Dokumen terkait

Forewing ground color sayal brown; basal half of wing, marked by an oblique line from costal two fifths to tornus, cinnamon buff, shading to pinkish buff before dor- sum; dorsum marked