THE CANADIAN ENTOMOLOGIST, 75 



PipPONA Harvey. 



Vestiture scaly. Eyes naked. Labial palpi short. Front full without 

 excavation or tubercle. Thorax untufted. Cut of the wings somewhat 

 like Heliophila. Fore wings satiny white, immaculate. Antennee simple. 

 All the tibiag spinose ; fore tibiae strongly armed. One species, Bimatris 

 Harvey, from Texas, with yellowish head and abdomen ; primaries with a 

 faint yellowish costal tinge ; shaded beneath with fuscous. There are 

 probably no " claws " to the front tibiae, only stout spines. Consult : 

 Bull. B. S. N. S. HI., 9. 



Epinyctis Grote. 



Vestiture scaly. Eyes naked. Labial palpi short. Front full, without 

 excavation or tubercle ; the infra-clypeal plate prominent. Tibiae non- 

 spinose ; fore tibiae short, with a claw. Thorax and abdomen untufted. 

 Antennae simple. Cut of the wings somewhat like Cnaillia. Primaries 

 narrow and long, apices pointed ; external margin oblique, even ; the 

 wings satiny white. One species, Notatella n. s., size of Bimatris, from 

 Montana. Fore wings with two black dots on the cell. Below, on 

 internal margin, about where the median lines might terminate, are two 

 more. A row of black points along external margin. Else concolorous, 

 immaculate white. 



Plagiomimicus Grote. 



Vestiture scaly. Eyes naked. Front with a cup-like excavation, the 

 raised edges forming inferiorly a corneous projection above the infra- 

 clypeal plate. Tibi^ unarmed ; fore tibiae with a claw. The tegulae 

 spreading away from the thorax behind with elevated terminal scales. 

 Body untufted. One species, from New York to Texas, fuscous, with 

 angulated pale lines and a dark sub-apical, costal triangulate patch, 

 Pityochrotnus, Grote, Bull. B. S. N. S., I., 182. 



Polenta Morrison. 



No characters are given by the author of this genus, excepting the 

 negative one that it may be distinguished from Schinia by the " plain " 

 fore tibiae. I have shown, Bull. B. S. N. S., III., that the genus is not 

 allied to Schinia, of which trifascia is the type ; it differs throughout from 

 that genus. It differs by having a frontal excavation, and it agrees with 

 Plagiomimiais in this respect, as well as in the peculiar tegulae and 



