170 



THE ORDER OP COLEOPTERA. 



Fab., three-twentieths of an inch long. A much smaller species, the 

 C. dispar, Lacord., has been placed in the sub-genus Uxema. Babia^ 

 Chev., is founded upon the B. higuttata, Oliv., and its varieties. It is 

 about three twentieths of an inch long, blue-black, with a fulvous spot 

 on the shoulder, and another at the tip of each elytra. It dilfers from 

 the great majority of Cryptocephalides in having the tip of the abdo- 

 men bat slightly, and in many specimens not at all exposed. Saxinis 

 07nogera, Lacord., resembles the last mentioned insect in size and color, 

 except that there is no spot at the end of the elytra. It is found in the 

 Southern States and Texas. The genus contains but one other North 

 American species. The type of the genus Coscinoptera, Lacord., is the 

 C. dominicana, Fab. (Fig. 82), two-tenths of an inch long, or a little more, 

 black, rather densely covered with a flue ash-colored pubescence. Several 

 other species have been found in the remote Western States. The G. 

 vittigera, LeC, found in Kansas, is more oblong, and each elytra has a 

 fulvous stripe, which is bent up like a hook at the end. The generic 

 name comes from TcosMnos — & sieve, and 2)tera — wiogs, referring to the 

 irregularly distributed punctures, somewhat like the holes in a sieve. 

 The genus Cryptocephalus contains many more species than all the 

 others combined. It has been divided into a considerable number of 

 sub-genera, mostly upon slight or obscure characters. A more conve- 

 nient distribution, for the purpose of identification of species, could be 

 made in accordance with their colors. The majority are brown, with 

 yellow stripes or spots ; a considerable number are blue-black, with ru- 

 fous or orange spots ; and some of the smallest species are wholly blue- 

 black or brown. 



[Fig. 83.. 



\ 



frig. 84.J 



Sub-family GALERUCEDES. 



Named after the genus Galernca, 



of Geoffroy. They are distinguished 



primarily from the other Chrysome- 



lidtie by the approximation of the 



antennae at their points of insertion, 

 (DiABKOTicA) being rarely farther apart than tlie 

 ^he'^stiiped length of the first joint, and from 



cucumber- ,■■ r^-. -..j -u -i, • 



beetle, the Chrysomelidcs proper by having 

 the antennae perfectly filiform, or not enlarged 

 towards the tip. The thorax is narrower than 

 the elytra, which, together with a similarity 

 of coloring, gives to some of the species a 

 strong resemblance to the Criocerides, but 

 they can always be distinguished by the tho- 



-t • J- !.• 2. 1 J. t • 1 croatlv maKuified. the side liiie.s 



rax having a distinct lateral margin or edge. Showing the length of the fuiiy 

 It is in this sub-family that we find a large SaT^ew-Sier^Eiie? ^''^'' "' 



DiABROTICA VITTATA 



¥ 



2 

 Larva 



