182 CEEAMBYCID^. 



Group MYTHODIN1. 



Head exserted ; eyes lateral, finely facetted, entire, prominent, 

 oval or rounded ; antennae approximated at base, inserted between 

 the eyes, as far from them as from one another, certain of the 

 joints tufted with hairs. Protborax longer than broad ; the sides 

 rounded in the middle, feebly or not tuberculate. Mesonotum 

 without stridulatory area. Front coxae globular, not prominent ; 

 their acetabula angulate on the outer side, narrowly open poste- 

 riorly. Acetabula of middle coxae extended to epimera. Femora 

 pedunculate and clavate. Vein Cu 1 of hind wings simple, Cu 2 

 absent. 



This small but remarkable group comprises only three genera, 

 two of which occur in the Malay Peninsula, the third in Northern 

 India and Upper Burma. In two of the genera (Mythodes and 

 Phyodearia) the metathoracic episterna have each a small deep 

 fovea near the hinder end. These foveae are in all probability 

 scent-pores, notwithstanding their position, which is less close to 

 the metasternal sutures than in other groups. 



Genus PHYODEXIA. 

 Phyodexia, Pascoe, A. M. N. H. (4) viii, p. 273 (1871). 



Type, P. cohcinna, Pascoe. 



Range. That of the type species. 



Front of head sloped, subquadrate ; antennal supports approxi- 

 mated, very slightly raised ; eyes rather small but prominent, 

 entire, hemispherical. Antenna? shorter than the body ; first joint 

 clavate, slightly curved, longer than the second and third united ; 

 fourth and sixth longer, fifth shorter, than the third, all three 

 furnished with long tufts or brushes of hair ; seventh to tenth 

 short, subequal ; eleventh appeudiculate, longer than the tenth. 

 Prothorax longer than broad, sulcately constricted near the base 

 and apex ; disc swollen and strongly convex towards each side, 

 slightly depressed along the middle. Mesouotum without stridu- 

 latory area. Elytra about two and a half times as long as broad, 

 subtruncate at the apex. Intercoxal process of prosternum feebly 

 arched, scarcely dilated posteriorly, not reaching to the epiraera. 

 Femora pedunculate at the base, abruptly clavate near the apex, 

 the hind pair reaching beyond the apex of the elytra. Front coxse 

 globular, not prominent, slightly angulate on the outer side. 



