HOW TO KNOW THE IMMATURE INSECTS 



9a. Antennae conical, 5-segmented. 

 Fig. 587 



FamUy TENTREDINIDAE 



Fig. 587.. a, Tomosthethus bor- 



dus Say (Blennocampinae); b, 

 Dolerus similis Norton (Doler> 

 inae) . 



This includes three subfamilies: Doler- 

 inae, Emphytinae and Blennocampidae. 

 The oaks, members of the rose family 

 and grasses and sedges are frequent 

 food plants. 



9b. Antennae not conicaL 3-segmented, erect and peg-like. 



Fig. 588 Family DIPRIONIDAE 



About 70 species have been de- 

 scribed. The larvae feed on the 

 leaves of pine, spruce, cedar, etc. 

 The body is usually yellowish or 

 greenish with grayish or brownish 

 stripes of with rows of black spots. 



Fig. 588. Neodiprion lecontei 

 Fitch. 



10a. Antennae conical, 5-segmented; labrum without secondary longi- 

 tudinal sutures. Fig. 589 Family TENTHREDINIDAE 



WWWWWIM 



Here is included 3 subfamilies: 

 belandriinae, Emphytinae and Ten- 

 thredininae. Many broad-leafed trees 

 and shrubs and ferns are attacked by 



Fig. 589. a, Strongylogoster on- members of these groupS. 



nulosus Norton (Selondriinae) ; 

 b, Tenthredo sp. <Tenthredini- 

 nae). 



10b. Antennae not conicaL 1-segmented; labrum with secondary 

 longitudinal sutures. Fig. 590 Family CIMBICIDAE 



About 50 species have been describ- 

 ed. The larvae are caterpillar-like, 

 body usually curled spirally and cov- 

 ered with a waxy bloom. They feed on 

 the leaves of different kinds of decidu- 

 ous trees and shrubs. Pupation takes 

 place in a parchment-like cocoon in 

 an earthen cell under ground. 



Fig. 590. Abia inflato Norton. 



11a. Thoracic legs 5-segmented, normal in form; prologs on abdomin- 

 al segment 2-7, either with or without anal prolegs 12 



213 



