Publ. IS. VII. 1924. 
ACRONICTA. By Dr. M. Draudt. 
21 
without any peculiarities. Very numerous whitish or grey species with distinct Noctuid markings and mostly 
very characteristic sagittiform or harpoon-shaped longitudinal streaks. 
The larvae exhibit the most varied kixrds of hairy covers, varying from single bristly hairs that are 
partly at the end spatulately expanded, to a star-shaped hairy cover on the tubercles and even to soft hairing 
of the whole skin of the body, frequently yet intermixed with hair-tufts or pencils. In case we acknowledge 
Hubner’s preliminary examination (1806), the subordinate group is to be named Apatelidae, the genus itself 
Apatela Hbn. 
Sect. I. Thoracal cover chiefly consisting of scales (Ilyboma Hbn.). 
A. theodora Schs. (3 b) has a greyish-white ground-colour and, like all the following, a black sagitti- theodora. 
form spot on the submedian fold cutting the posterior transverse line and extending to the margin near the 
anal angle, and besides a black connecting streak to the anterior transverse line and a third on the discal fold 
from the posterior transverse line to the margin. Hindwing white, the veins brownish towards the margin. 
From Mexico and Guatemala. 
A. mansueta Sm. (3 b) is much smaller, more violettisli-grey mixed with brownish, particularly mansueta. 
darkened at the proximal margin, less in the marginal area, similarly marked as the preceding, but without 
the upper longitudinal streak to the margin on the discal fold. Hindwing of a pure white. United States. 
A. vinnula Grt. (3 c) is a small whitish species with a slight olive tint, not to be mistaken for any other, vinnula. 
The black connecting streak between the transverse lines is absent, the latter are more or less olive-green; the 
black basal streak sends in the middle a hook to the proximal margin. Hindwing whitish, dusted with brown. 
Canada, United States to Texas. The green larva on each tubercle exhibits a stiff hair surrounded by shorter 
ones in the shape of a cross. It lives on elms. 
A. paupercula Grt. (3 c) is somewhat like vinnula, but on the greyish-white ground it is dusted more paupercula. 
with brownish or rather dingy reddish-yellow, the marking being otherwise similar, but the anterior transverse 
line and particularly the discal shade much more indistinct. Texas. 
A. lepetita Sm. (3 d) is also like vinnula , smaller, the ground-colour is bluish-grey, mixed with olive- lepetita. 
brown especially before the margin, the undulate line quite indistinct. Hindwing darker. Described from 
Texas. 
A. parallela Grt. (3 c) is recognizable by the posterior transverse line exhibiting one distal tooth parallela. 
each on the upper median and lowest radial vein; the ground-colour is violettish-grey, dusted with brown, 
without any reddish admixture; the most conspicuous mark is the sagittiform streak on the submedian fold 
to the margin, which appears to be double owing to a second streak above it. Texas, Colorado, Cansas in May. 
A. albarufa Grt. (= walkeri Andreas) (3 d) differs from parallela by a reddish reniform macula, before albarufa. 
it the cell is filled up with blackish, the ground-colour at any rate darker, especially in the $ which has also 
brown dusted hindwings, whereas the has white ones; the posterior transverse line as in parallela , but the 
sagittiform streak is plain. Canada, United States. 
A. exempta Dyar is marked like albarufa (3 d), but less distinctly and but slightly prominent. The exempta. 
ground-colour is a bluish grey with a contrastingly dark red-brown reniform macula without a distinct bordering; 
ring-shaped macula indistinct. Hindwing suffused with blackish-brown. Expanse of wings: 34 mm. Described 
from New Mexico. 
A. connecta Grt. (3 c) is well distinguished by the brown longitudinal shade on the submedian fold, connecta. 
extending from the base to the margin, though it leaves the proximal margin light; moreover the ground-colour 
is a dingy yellowish grey; whilst the black basal sagittiform streak in all the preceding species sends in its centre 
a hook to the proximal margin, it is absent here and in the following. Canada, United States. —- The larva 
occurs in two colourings: green with orange subdorsal lines, or brown, on the dorsum bluish-grey with yellow 
subdorsal lines; single dorsal hairs, laterally more densely haired. It lives on willows. 
A. ybasis Dyar is a small whitish-grey species, in the marginal area shaded with purple brown up ybasis. 
to beyond the middle; the black basal ray is distinct, at the end forked, the discal and anal sagittiform streaks 
are distinct, too; the undulate anterior transverse line is faded and indistinct, the maculae large, light, with 
dark rings and pupils; the distinct median line is double at the costal margin. The posterior transverse line 
is double. Hindwing brownish with a discal spot and traces of a transverse line behind it. Expanse of wings: 
29 mm. Mexico. 
A. exilis Grt. (= modica Sm. cfc Dyar) (3 c) is a smaller species with narrow wings, the greyish- exit is. 
white forewings tinted somewhat olive; maculae whitish, pupilled reddish, above and below their black border¬ 
ing is open; the basal sagitta is very indistinct. Hindwing greyish-brown. New York. 
A. modica Wkr. (3 c) is similar, larger, more brownish, more intensely strewn with black, the maculae modica. 
entirely encircled. Hindwing towards the base more yellowish, towards the margin more darkened with darker 
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