and Central American Malachiidae and Melyridae. 93 



diver sicornis, n. sp. 



salvini, Gorh. 



/^. Upper surface with numerous inter- 

 mixed erect setae; prothorax 

 oblong, subglobularly convex; an- 

 tennae (cj) moderately long; body 



black ; legs red mexicanus, Casey. 



g^. Upper surface with a few intermixed 

 erect setae. 

 e\ Antennae long and with joints 4-10 

 triangular in c?» much shorter 

 and serrate from joint 5 in $; 

 prothorax trans verse ; body aene- 

 ous, shining ; legs red 

 p. Antennae short, feebly subequally 

 serrate ; prothorax oblong ; body 

 aeneous; legs piceous; tibiae 

 obsoletely spinulose .... 

 Antennae abruptly serrate from joint 6, 

 6-10 strongly transverse, becoming 

 progressively broader; body nigro- 

 aeneous ; legs piceous ; upper surface 

 with intermixed semierect bristly 



hairs clavatus, n. sp. 



Antennae abruptly serrate from joint 7, 

 7-10 broad ; body aeneous, thickly set 

 with numerous intermixed erect setae ; 

 tibiae and tarsi red . .... femoralis, Gorh. 

 , Antennae feebly, irregularly serrate from 

 joint 5, 5 larger than 6, 9-11 widened 

 into a more or less distinct club; 

 tibiae feebly or obsoletely spinulose, 

 and often setose. 

 h}. Elytral epipleura much widened an- 

 teriorly, the marginal carina promi- 

 nent; upper surface with numerous 

 intermixed erect setae ; body nigro- 

 aeneous ; antennae and legs black . 

 g-. Prothorax densely, rugosely punc- 

 tured, dull aeneipennis, Gorh. 



h^. Prothorax more sparsely punctate, 



shining nigroaeneus, Gorh. 



i^. Elytral epipleura narrow. 



i^. Body black, aeneous, or greenish; 

 antennae and legs black or piceous. 



