52 COLEOPTERA OP NORTH AMERICA. 



EvOLENES has the antennae somewhat flattened. The elypeus 

 lias a kirge setigerous puncture each side, and the labruni six. 

 It is the only genus in the group in which the second joint of the 

 labial palpi has the setae almost universally observed in the Cara- 

 bidse. 



OoDES, as above defined, contains Oodes, Stenous, and CroHSO- 

 crepis of Chaudoir. In Oodes proper the elypeus has a setiger- 

 ous puncture each side, and the labruni si.x in front, in the other 

 two there are no clypeal punctures, and three only on the labrum. 



The inconstancy of the setigerous punctures in the Oodes is 

 remarkable, the only one absolutely present in all is the one over 

 the eye. The entire absence of these punctures from the side of 

 the thorax would be an excellent means of separating the Clilfenii 

 and Oodes, were it not that even in CJiI senilis these punctures, 

 although constantly present, are often lost in the general punctua- 

 tion, and the seta is small and hair-like, and not very evident, 

 except in the glabrous species. 



It may be observed in Chlsenius that those species in which 

 the males have not the pubescent space near the tip of the middle 

 tibia?, that is, those of division A (Horn, Trans. Amer. Ent. Soc, 

 V. 187G, p. 257), are without setae on the second joint of the 

 labial palpi, while division B (and Anoinoglosaus with its long 

 second joint) is plui'isetose. 



Chlsenius is universally distributed in our fauna ; Oodes elcgans 

 occurs in Arizona ; the other genera are peculiar to Atlantic 

 Js'orth America. 



Tribe XXXII.— HARPALINI. 



Antennae usually slender, arising under a slight frontal ridge, 

 the two basal joints glabrous, sometimes also the greater part of 

 the third. Head often large, usually moderate, not narrowed to a 

 neck, with one supra-orbital seta. Eyes usually moderate in size, 

 narrow, never very convex, not distant beneath from the mouth, 

 sometimes, however, small and distant. Clypeus slightly pro- 

 longed between the mandil^les, with one or two setigerous punc- 

 tures near the apical margin. Labrum moderately prominent, 

 truncate, or emarginate, plurisetose in front. Mandibles stout, 

 rarely {Gljfptus) prominent, acute at tip, and without setigerous 

 puncture externally. Maxillae hooked at tip (except in Gb/ptiis), 

 although rather feebly in some genera (Arisfus), the inner margin 

 ciliate, the outer lobe usually slender, as long as the inner lobe 



