19- ■I'ii^' 



561. 

 CHIMARRA MARGINATA. 



Order Trichoptera. Fam. Psychomidae. 



Type of the Genus, Phryganea marginata Linn. 

 Chimarra Leach., Curt. — Psychomia ? Pictet. — Phryganea Linn. 

 Antennce inserted before the eyes, as long as the wings in the 

 male, shorter in the female, tapering, hairy, composed of nume- 

 rous oblong joints, basal one stout, subovate, 2nd the shortest, a 

 few of the following short, apical joint oval (1 the base and apex) . 

 Labrum minute and trigonate. 



Maxillie closely united to the labjum, with a pointed and bristly 

 terminal lobe. Palpi alike in both sexes, long, curved, com- 

 pressed, pubescent and 5-jointed, basal joint the broadest, cup- 

 shaped, 2nd and 3rd very long, the former stoutest at the base 

 and surrounded with long hairs at the apex, the latter narrowed 

 at the base, 4th short, subovate, truncated, 5tli twice as long, 

 the slenderest and somewhat filiform (4). 



Mentum suborbicular, truncated at the base, emarginate before. 

 Palpi not so long as the maxillary, hairy, triarticulate, basal 

 joint broad, somewhat oblong, 2nd a little shorter, elongate, 

 obtrigonate, 3rd nearly as long as the other two, slender and 

 filiform (5). 

 Head subglobose : eyes lateral, globose and very prominent : ocelli 3, 

 large, forming a spacious triangle. Thorax rather ovate. Abdo- 

 men rather short, especially in the male. Wings hairy, slightly de- 

 flexed when at rest, the superior crossing, the back flattened ; inferior 

 not folded ; superior with 8 or 9 longitudinal nervures, 3 of them, 

 forked ; transverse nervures none (9) . Legs, anterior the shortest : 

 thighs, anterior the broadest but narrow at the apex, intermediate 

 the longest : tibiae, anterior simple (8), the others spurred at the 

 apex, the intermediate having a pair above (*), and the hinder tibia: 

 which are the longest a pair below the middle (f) : tarsi 5-jointed, 

 intermediate compressed and a little dilated in the female ; basal joint 

 the longest, 4th small: claws of anterior feet rather long, the others 

 minute. 



Marginata Li'nw. ? — Curt. Guide, Gen. 752. 1. 



Smoky black ; basal joint of antennje, face and head, excepting 

 the crown, clothed with orange hairs ; superior wings margined 

 with yellow-ochre, the marginal cell being of that colour form- 

 ing the broadest portion, the cilia the narrowest ; an oblique 

 nervure furcate at the apex, yellow- ochre, as well as another 

 beneath it towards the base, inferior wings with the costa ex- 

 cept at the base and the cilia at the apex of the same colour : 

 legs ochreous, base of thighs and anterior tarsi at the apex, 

 fuscous. 



In the Author s and other Cabinets. 



