HOW TO KNOW THE IMMATURE INSECTS 



81b. Cerci absent; terga with paired glandular openings. 



Fig. 274 Family ORTHOPERIDAE 



These are the "fringe-winged fungus 

 beetles". They are small but quite abun- 

 dant. As the name indicates they live in 

 fungi. 



Fig 274. Corylophodes mor- 

 ginicollis Lee. 



82a. 8th abdominal segment distinctly longer than 7th. 



Fig. 275 Family CUCUIIDAE 



Fig. 275. Laemophloeus bigut- 

 tatus Say. 



gnQ TnnrTn['*T*T^ The genus Laemophloeus contains 



^^^''^^^^^'^^^'^^^''^*'^^^^ more than 320 species which occur 



urder bark and some are destructive 

 to dried fruit and cereals. 



82b. 8th abdominal segment about as long as seventh or shorter 83 



83a. Larvae parasitic, having a swollen abdomen, slightly sclerotized; 

 head and body white. 

 Fig. 276 Genera Scalidia and Catogenus, CUCUIIDAE 



The species here pictured is found 

 in our southern states. Only a few 

 species of these two genera are 

 Fig. 276. Seolidla linearis Lee. known to America. 



83b. Larvae not parasitic and abdomen not swollen; head and body 

 normally sclerotized 84 



84a. Apical segment of labial palpus normal; hypostomal rods diverg- 

 ing posteriorly. Fig. 277 Family PHALACRIDAE 



The larvae of Olibrus bore into stems 

 and pupate underground. Eustilbus apica- 

 lis Melsh. is a predator upon the pea aph- 

 ids. There are some 500 species of these 

 "shining flower beetles". 



Fig. 277. a, Phaiacrus 

 sp.; b, Ventral aspect of 

 a half head. 



106 



