CLASSIFICATION OF INSECTS 313 



HH. Head normal, but partially or nearly covered by 



thin anterior margin of thorax. 

 /. Wing-covers flexible; body elongated and 

 flattened ; antennae not enlarged at tip. Fire- 

 flies. (Page 147) .... LAMPYRIDAE 

 //. Wing-covers firm ; body not much flattened ; 

 antennae often enlarged at tip. Checkered- 

 beetles . . . . ;. .-, . . CLERIDAE 

 FF. Antennae- lamellate, composed of a stemlike portion 

 on the end of which are a number of flat, bladelike 



segments Tribe LAMELLICORNIA 



G. Antennae elbowed; terminal lamella consisting of 

 fixed transverse plates. Stag-beetles. (Page 148) 



LUCANIDAE 



GG. Antennae not elbowed ; terminal lamella consisting 

 of flat plates which fold together. Leaf chafers and 

 scavenger-beetles. (Page 149) . SCARAB AEIDAE 

 CC. Tarsus less tha,n five segments. 



D. Tarsus consisting of four segments. (Page 1 53) 



Section TETRAMERA 

 E. Body short and more or less oval ; antennae short. 



F. Front of head not prolonged as a short, broad beak ; 

 elytra usually covering tip of abdomen ; larvae and adults 

 leaf feeders. Leaf-beetles. (Page 153) 



CHRYSOMELIDAE 



FF, Front of head prolonged as a short, quadrate beak; 

 elytra short, exposing tip of abdomen. Pea- and bean- 

 weevils. (Page 158) . . . . . . . BRUCHIDAE 



EE. Body long and cylindrical; antennae long. (Page 158) 



CERAMBYCIDAE 



DD. Tarsus consisting of three segments; comparatively small 

 beetles with hemispherical bodies. Ladybird beetles. (Page 



161) (Section TRIMERA) COCCINELLIDAE 



A A. Head prolonged into a beaklike structure at the end of which are biting 



mouth-parts. 



B. The dorsum of the last segment of the male divided transversely so 

 that, when viewed dorsally, this sex appears to have one more body 

 segment than the female. 



C. Mandibles with a scar on the anterior aspect . OTIORHYNCHIDAE 

 CC. Mandibles without scar on anterior aspect. Curculios. (Page 167) 



CURCULIONIDAE 



BB. Dorsum of last segment of both sexes undivided. 



C. Tibia not serrated. Bill-bugs and granary-weevils. (Page 169) 



CALANDRIDAE 

 CC. Tibia serrated. Bark-beetles. (Page 1 70) ... SCOLYTIDAE 



