CARABIDAE. 33 



Of these genera only the first is represented on the Pacific coast, 

 and there, besides the normal form, is found a group of species 

 {Dichirus Mann.), having the body clothed with long hairs, and 

 the intervals between the striae of the elytra marked with two rows 

 of punctures; in them, too, the middle tarsi of the male are scarcely 

 dilated. 



Group III.— Harpali. 



The anterior and middle tarsi usually strongly, sometimes only 

 slightly dilated, clothed beneath with two rows of squamiform pa- 

 pillae. The head is usually slightly narrowed behind the eyes. I 

 have found it necessary to reduce the number of genera indicated 

 in my synoptical table of this group,* an undue prominence being 

 there given to the form of the ligula and paraglossaa. 



Mentum not toothed ; anterior tarsi with the first joint elongated and 

 dilated in the female ; 

 Elytra with three rows of punctures. GYNAi-fDROPUS. 



Elytra with a single dorsal puncture. Gynandrotarsus.! 



Anterior tarsi of the female not dilated ; 



Mentum strongly toothed. Bradycellus. 



Mentum tooth very small, or none ; 

 Last joint of maxillary palpi slightly elongated ; 



Thorax suhquadrate. Harpalus. 



Thorax rounded. Stenolophus. 



Last joint of maxillary palpi nearly twice as long as the preceding 



(thorax flat, suhcordate, with prominent hind angles). Philodes. 



Harpalus includes Sele?iophorus Dej., wdiich consists of the spe- 

 cies having three rows of punctures on the elytra. Hairy and 

 punctured Harpali (forming the division Ophonus) are not repre- 

 sented in North America. There is no special difference between 

 Harpalus and Stenolophus, except the smaller size and rounded 

 thorax of the species of the latter; in most of the species of 

 Stenolophus the fourth joint of the dilated tarsi of the male is 

 deeply bilobed, and the palpi are acuminate; but among the 

 species of Harpalus proper there is much variation in this respect, 

 as well as in the length of the first joint of the hind tarsi. 



Philodes contains two species, Stenolophus alternans Lee. 

 {Badister iestaceus and Aepus testaceus Lee), having three rows of 



* Trans. Am. Phil. Soc, x. 384. 



t It is quite possible that this genus will he found to belong to the pre- 

 ceding group. 



3 



