HOW TO KNOW THE IMMATURE INSECTS 



140a. More than 2 ocelli on each side; head retracted. 



Fig. 350 Subfamily Rhynchitinae, CURCULIONIDAE 



HrFOfLiu(l.ui^ 



Fig. 350. Rhy- 

 chites aeneus 



Boh. 



The larvae of Rhynchites and Attelabus live in tun- 

 nels formed of rolled leaves constructed by the 

 adults. 



The larvae of the species pictured live in Helian- 

 thus. R. bicoloi, a very common species, develops 

 within the hips of wild and cultivated roses. 



140b. 1 ocellus on each side; head protracted. 



Fig. 351 Subfamily Apioninae, CURCULIONIDAE 



This small subfamily is cosmopolitan in its distri- 

 bution. The species here pictured makes galls on 

 the scrub pine. The larvae of Apion, a rather large 

 genus, Hve principally within the seeds of legumes 

 and other plants. Some are gall makers. 



Fig. 351. Pine gall 

 weevil, Podopion 

 gollicolo Riley. 



141a. Maxillary palpus 2-segmented. 



Fig. 352 Subfamily Calendrinae, CURCULIONIDAE 



Many of our most destructive "bill-bug" 

 larvae belong here. The larvae of the larger 

 species bore into the stems of plants, princi- 

 pally com and grasses while the smaller 

 ones give their attention to seeds and grain. 



Fig. 352. a, Granary weevil, 

 Sitophilus gronorius (L); 

 b. Maxilla. 



127 



