1180 
PACHYTHELIA; ACOUSMATICUS. By M. Gaede. 
cacocnemis. 
edwardsi. 
carbonaria. 
celibaia. 
polingi. 
lepidopteris. 
magnicornis. 
brownish grey, thorax and forewing somewhat darker than the hindwing and abdomen, slightly diaphanous, 
with a violettish blue gloss above and beneath. $ 17—19 mm. Mississippi. — Larval bag 20—27 mm long, 
cylindrical, outside with closely appressed pieces of dry grass. As the imago has a smaller expanse than in con- 
federata , but a stronger structure, the bag is relatively large. 
E. cacocnemis Jones (169 b) is closely allied with tracyi, but the legs are remarkably weaker. According 
to the author, this depends on the shape of the $ larval bag which is not so broad at the end as in tracyi. The 
rounded apex on the forewing projects a little farther than in tracyi, veins 8 9 are stalked. Vein 8 of the 
hindwing is fused with the middle of the cell for some distance, which may also occur in celibata (169 c). Antennae 
as in tracyi (169b). Ground-colour blacker, less brown. Forewing with traces of a black streak at the cross¬ 
vein. Laterally projecting hair at the end of the abdomen. $ 17 rnm. Described according to 5 bred specimens 
from Florida. — The larval bag is 25—30 mm long, similar to that of tracyi , but less uniformly covered with 
small pieces of bark, which are often absent at the end. Similar bags have been found by Jones also in Carolina. 
E. edwardsi Heyl. (= carbonaria Pack.) (169 b). According to Jones, edwardsi and carbonaria are 
identical, and edwardsi is not a synonym to gloveri as Dyar presumed. - carbonaria (169 c) was described 
in 1887 according to two specimens from Texas and was no more found, until Jones, in 1932, visited a district 
in Texas of a similar nature though of an easier access than the typical one, where he discovered ample material 
of larval bags in the first half hour. In the forewing veins 7 and 8 + 9 arise normally together, 8 + 9 being 
shortly stalked, but they may also be separated. Veins 4 and 5 may arise in both wings from the same base 
or they may be stalked. In the hindwing a bar extends from vein 8 to the middle of the cell-margin. Body 
black, long-haired, rather strong. Wings broad, rounded, blackish, somewhat diaphanous. 20—22 mm. Texas. 
The $ is 12 mm long, yellowish white, the thorax above olive brown. — The larval bag is 22—26 mm long, 
cylindrical. 4 mm strong, silky, wood-coloured brown, smooth. According to the figures, the tone of colours 
of edwardsi and carbonaria is somewhat different. 
E. celibata Jones (169 c). All the veins of the forewing arise at about equal distances except veins 7 
and 8 + 9. The neuration of the hindwing is very variable in the ten lepidoptera that were examined; vein 
8 is mostly fused with the middle of the cell, and veins 4 and 5 may be distantly separated or also shortly 
stalked. The tiny lepidopteron is brownish black, with broad and round wings, a few white hairs on the body. 
Abdomen as long as the hindwing. Wings with moderately dense scales, the costal margin of the forewing nar¬ 
rowly darker. 10—12 mm. Florida. - The larval bag is about 15 mm long, cylindrical, longitudinally irregu¬ 
larly covered with fine needle-leaves and pieces of grass. 
E. polingi Barnes d- Ben]. (169 c). Antennae strongly pectinated. In the neuration very similar to the 
European Can. unicolor Hfn. (Vol. II, pi. 55 a). In the hindwing the position of veins 4 and 5 varies a little. 
Vein 8 is connected with the cell by a bar. Similar to edwardsi (169 b), but the thorax is whitish, the abdomen 
with black hair. Wings with a slight bronze reflection, somewhat diaphanous in the distal area, the fringe white. 
Apex of forewing more pointed, the distal margin more oblique, straighter than in edwardsi. 19—21 mm. 
Numerous CS from Arizona. The bag is 34 mm long, 10—12 mm strong at % from the upper end, pointed 
at the other end, of a pale grey silk, looking as if it were densely covered with shield-lice. 
7. Genus: Pachytlielia Ww. 
Forewing with 11 veins, hindwing with 7 veins, in both cases without vein 6. Antennae short, but 
pectinated to the tips. Anterior tibiae with a long thorn. The genus contains only 1 European species ( villo- 
sella O.) and 1 American species. 
P. lepidopteris Dyar. Antennae of long pectinated. Forewing with 12 veins, hindwing with 8, thus 
against the rule. Veins 6 + 7 of forewing stalked and 9 + 10 shortly stalked, 2—5 well separated. All the veins 
of the hindwing arising separately, 8 connected with the cell by a bar in the middle. Wings broad, rounded, 
thinly scaled black. 17 mm. Described according to 2 from Colima (Mexico). The other Pachythelia- 
species described by Dyar has been transferred to Hyaloscotis by Jones; to which genus lepidopteris belongs 
in fact, seems to be not yet ascertained. 
8. Genus: Acousniaticus Btlr. 
Antennae almost as long as the forewings, very strongly pectinated. Neuration not described. Both 
wings oblong. Costal margin of forewing straight. 
A. magnicornis Btlr. (169 c). Body and forewing greyish brown, the veins brown, lighter at the cross¬ 
vein with 2 black dots. Hindwing whitish. 22 mm. Chile. Presumably no specimen known besides the type. 
Judging from the exterior, the species scarcely belongs to the Psychidae. 
