HOW TO KNOW THE IMMATURE INSECTS 



91b. 5 ocelli on each side; cerci well developed. 



Fig. 287 Family EROTYLIDAE 



It has about 2,600 described spe- 

 cies. The larvae live in the soil, 

 in stems of plants and on fungi. 

 Some species are fairly large and 

 many of the adults are brightly 

 colored. 



Fig. 287. Clover stem borer, Lan- 

 ggrio mozardi Latr. 



92a. Mentum and submentum distinct. 



Fig. 288 Group Dacnini, EROTYLIDAE 



Fig. 288. a, Penthe pimeira Fab.; b. Lab- 



The larvae have been 

 found in herbaceous plants. 

 They live in decaying wood 

 and are of little importance 

 economically. 



92b. Mentum and submentum fused. 

 Fig. 289 



Family MELANDRYIDAE 



Fig. 289. o. 

 Labium. 



Melandrya striata Soy; b, 



I5 They occur in dry wood and 

 fungi or sometimes under bark. 

 The larvae are slender and 

 cylindrical and may often be 

 found with the adults. 



93 a. Body terminating in a deciduous ovate appendix. 



Fig. 290 Group Scraptini, MELANDRYIDAE 



The species of Scraptia occur in rotten 



wood, fungi, etc. This is a small group 



^. ^^^ with but two genera and only a few spe- 



Fig. 290. Scraptia sericea . . „ . ^ ^ 



Meish. cies in America. 



93b. Not so 94 



94a. Mandible with a toil-like, hairy appendix or a 

 fleshy, hairy lobe behind the base of mola. 

 Fig. 291 95 



Fig. 291. Two 

 mandibles. 



94b. Mcmdible not so. 



96 



110 



