298 



AN INTRODUCTION TO ENTOMOLOGY 

 Family BEROTHID^ 



The Berothidae is a small family, which is represented in North 

 America by a single genus, Lomamyia, of which only two species are 



Fig. 336. — Wings of Berotha insolita. 



known. Figure 336 represents the venation of the wings of the type 

 species of the family, Berotha insolita, which is found in India, and 

 to which our species are closely allied. 



The fore wings are falcate, which is not true of certain exotic genera ; 

 the humeral cross-vein is not recurved ; many of the transverse veins 

 between the costa and the subcosta are forked ; the radial sector bears 

 definitive accessory veins; and there is a single series of gradate 

 veins in the radial area. In the hind wings the first radio-medial 

 cross-vein is transverse; vein Cu2 is wanting; and the area between 

 the margin of the wing and veins ist A and Cui is narrow and largely 

 occupied by the fanlike tips of the accessory veins. 



Nothing is known regarding the early stages of these insects. 



Family P0LYST(ECH0TID..E 



The family Polystoechotidas was 

 established to receive the genus 

 PolystCBchotes,oi which only two species, 

 both American, are known. These are 

 the members of the allied families. 



Fig. 337- 

 tus. 



-PolysUechotes puncla- 



larger insects than are 



