LEP1D0PTERA HETEROCERA. 
1605 
This species is nearly allied to I. vesparia , but may be distin- 
guished by its smaller size, by the bind part of the abdomen, which 
is not black with blue stripes as in I. vesparia, by the posterior 
tibia?, which are not striped with black, and by having no black 
mark on the hind border of the hind wings. In the two last cha- 
racters it agrees with I . Porphyria , but the fore wings have not 
black tips. 
a. Villa Nova. From Mr. Bates’ collection. 
ISANTHRENE MUNDA. 
Foem. Pallide lutea ; antenna serrata , nigra ; thorax vittis tri- 
bus fasciaque postica nigris ; abdomen mtta inter rupta f asciis- 
que nigris ; tibia postica nigro vittata ; ala limpida , antica 
apice nigra. 
Female. Pale luteous. Antennae serrated, black, luteous at 
the base. Prothorax with black borders. Thorax with three black 
stripes. Metathorax with a black band and a black stripe. 
Pectus with two interrupted black stripes. Abdomen with dorsal 
black bands and with an interrupted dorsal black stripe. Hind 
tibiae with a short blackish stripe on the outer side. Wings limpid, 
with black veins and black cilice. Fore wings with black tips. 
Length of the body 3^ lines ; of the wings 10 lines. 
This species especially resembles a Hymenopterous insect, and 
differs somewhat in structure from the three preceding species. 
There are but two superior veins ; the first inferior vein is almost 
straight, and more remote from the discal fold, and the transverse 
veinlets of the discal areolet form a much more obtuse angle. It is 
connected with Pcecilosoma by means of P. gaudens. 
a. Santarem. From Mr. Bates’ collection. 
Page 158. 
Genus PCECILOSOMA. 
G. xanthogastra , p. 152, may be added to this genus. 
Pcecilosoma scintillans. 
Laemocharis scinjtillans, Herr.-Schaff. Lep. Exot. Sp. Nov. Ser. 1 , 
Glaucopis flavitarsis, p. 158. 
PART VII. 
K 
