536 



THE STUD V OF INSECTS. 



family ; the antennae are about half as long as the body ; 

 the prothorax is nearly square, and usually has a wide, thin 

 margin, which is slightly turned upwards at the sides. 





Fig. 644. 



Family EROTYLID^: (Er-o-tyl'i-dse). 

 The Erotylids {Er-ot' y-lids). 



The members of this family are usually of moderate or 

 small size; but some species are quite large, measuring three 

 fourths inch or more in length. Some of our more common 

 species are conspicuously marked with shining black and red. 



To the genus Megalodachne (Meg-a-lo-dach'ne) belong 

 two common, large species, which are black, 

 with two dull-red bands extending across the 

 wing-covers. M. heros (M.he'ros) (Fig. 645) is 

 two thirds of an inch or more in length. M. 

 fasciata (M. fas-ci-a'ta) is about half an inch 

 long. 



The genus Langnria (Lan gu'ri-a) includes 

 long, narrow species, which resemble click-beetles in form. 



Fig. 645. 



