HARPALIN.E 219 



should be added also that the body is always small or very small 

 in size. The genera are numerous, perhaps more so when compared 

 with the known species than in most of the other tribes, indicating 

 an unusual amount of structural diversification ; for example, nearly 

 all the male tarsal modifications of all the preceding tribes occur 

 here, from the solidly pubescent A nisodactylus-\ike soles of Pel- 

 matelhis, through the biserially squamulose Harpalns-Yike develop- 

 ments seen in the Bradycellids and in Stenolophus, to the sexually 

 unmodified tarsi of Agonoderus, representing the Daptid type, and, 

 as in Geopinus of the Daptini, the hind tarsi in Agonoderus are of a 

 somewhat tapering form. There is comparatively little variety, 

 so far as observed, in the ligula and paraglossse, but the presence or 

 absence of a mentum tooth is taxonomically much more important 

 here than in the Harpalini and even somewhat more so than in the 

 Anisodactylini. The last joint of all the palpi is frequently more 

 subulate at apex than in the preceding tribes and the third joint of 

 the labial palpi is nearly always much longer than the second. 

 The essential differential characters distinguishing the genera 

 represented in the material at hand may be expressed briefly as 

 follows : 



Mentum toothed, the anterior, at least, of the male tarsi moderately 

 dilated and squamulose beneath; hind tarsi always slender and fili- 

 form 2 



Mentum not toothed; antennae with but two glabrous basal joints, as 

 usual in the subfamily 13 



2 Hind angles of the prothorax with a long erect seta as in Diachromus 

 of the preceding tribe 3 



Hind angles without an erect seta 4 



3 Palpi long and slender, the second joint of the labial as long as the 

 third and with about three long setae; anterior tarsi (cf) broadly 

 dilated, the joints 2-4 transverse, clothed beneath with a loose but 

 rather uniform mixture of long hairs and hair-like squamae, the 

 middle tarsi slender, barely at all dilated and with a few squamae; 

 upper surface with uniform strong micro-pubiferous punctulation 

 throughout, the third and fifth strial intervals with widely spaced 

 series of slightly coarser punctures. Palaearctic regions. 



*Dicheirotrichus 



Palpi all short and relatively stout, the second joint of the labial bisetose, 

 as usual in the tribe, and a little shorter than the third; anterior 

 tarsi (cf) feebly dilated, rather flattened, the joints subquadrate, 

 clothed uniformly and closely beneath joints 1-4 with slender sub- 

 decumbent squamules, which extend transversely from the median 

 line, the middle tarsi slender and unmodified; upper surface with 



