HOW TO KNOW THE IMMATURE INSECTS 



35a. 3 ocelli arranged closely together* more widely separated from 

 the other one. Fig. 462 Family OECOPHORIDAE 



The caterpillars usually live in 

 webs or rolled leaves. One species 

 is destructive to parsnips. 



Fig. 462. Depressorio herocliono Oe 

 Geer. 



35b. Ocelli evenly spaced. Fig. 463 Family GELECHIIDAE 



The larvae pictured here is 

 a widely distributed and ser- 

 ious pest of cotton. It made 

 -..,-_...,, B *. u its first appearance in our 



Fig. 463. Pink bollworm, Pectinophoro . ,^ri 



gossypiella (Saunders). country m 1917. 



36a. ^etae iii on 8th abdominal segment usually placed just above 

 and slightly before the spiracle. 

 Fig. 464 Fanuly GLYPHIPTERYGIDAE 



This family includes about 550 known species, 

 largely oriental. The habits of the caterpillars 

 are known as leaf rollers, leaf skeletonizers, 

 leaf miners, stem borers and some live on webs. 



Fig. 464. a, Apple and 

 thorn skeletonizer, 

 Anthophila par i a n a 



(Cferck) ; b, setal map 

 of 8th abdominal seg- 

 ment. 



36b. Setae iii on 8th abdominal segment usually placed above and 

 behind the spiracle. Fig. 465 Family BLASTOBASIDAE 



Some larvae are known as 

 borers in nuts, some scaven- 

 gers, and some are preda- 

 cious on scale-insects. 



Fig. 465. Valentinia glanduleila Riley: a, 

 acorn with a hole; b, caterpillar in ocorn; 

 c, head and thorax; d, an abdominal seg- 

 ment. 



164 



