HOW TO KNOW THE IMMATURE INSECTS 

 141b. Maxillary palpus 1-segmented. Fig. 353. Family PLATYPODIDAE 



The eggs are laid in the primary galleries 

 which are made by the adults. The larvae then 

 make new tunnels. Often the burrows form 

 definite patterns which are characteristic of the 

 species. The ambrosia beetles live in dead 

 wood and cultivate fungi to feed their young. 



Fig. 353. a, Platypus 

 compositus Say; b, 

 Maxilla. 



142a. Legs vestigial, without pointed tarsal segment, or absent; body 

 curved, fleshy, and with dorsal transverse plicae; 10th abdom- 

 inal segment small, in continuation of 9th. 

 Fig. 354 Family PLATYSTOMIDAE 



Certain species of Brachyfarsus are pre- 

 dacious upon scale-insects. The larvae of 

 B. niveovariegatus Roel. attack the Chinese 

 wax scale, Ericerus pela Chev. 



Fig. 354. Euporius 

 mormorius Oliv. 



142b. Legs normoL with strong tarsus; body elongate, cylindrical, cov- 

 ered with tergol 

 shields; 10th ab- 

 dominal segment 

 well developed, as- 

 perate, and placed 

 below base of 

 large 9th segment. 

 Fig. 355. ...Family 

 LYMEXYLIDAE 



Fig. 355. Chestnut timberworm, 

 sericeum (Harris)- 



Melittommo 



128 



