196 MEMOIRS ON THE COLEOPTERA 



\vhich is transverse medially, feebly arcuate laterally, the angles 

 broadly rounded; surface strongly but rather sparsely punctured 

 throughout, the punctures becoming dense in the large concavo- 

 explanate late r o-basal region, which probably represents the foveae 

 as these are wholly undefined; the marginal gutter is narrow ante- 

 riorly, gradually broader posteriorly, rather abruptly defined and 

 closely punctate, disappearing at about basal two-fifths; the stria 

 is extremely fine and broadly biabbreviated, the surface adjacent 

 thereto somewhat flattened; elytra nearly one-half longer than wide, 

 fully a fourth wider than the prothorax, the sides parallel and broadly 

 arcuate, the apex obtusely rounded; sinu- rather short, feeble but 

 very distinct; surface densely, rather finely and uniformly punctate 

 and minutely pubescent throughout, the striae fine, the scutellar 

 long, the intervals nearly flat throughout, 3-5-7 with scattered sparse 

 coarser punctures throughout the length, which are distinct (c?) or 

 feebly defined (9), the discal substrial puncture small, at three- 

 fifths; abdomen very finely and sparsely punctulate throughout; 

 hind tarsi slender, with only very few hairs above, the basal joint 

 longer than the next two combined and about as long as the last 

 three. Length (d 71 9 ) 8.8-9.8 mm.; width 3.3-4.0 mm. Rhode 

 Island to Lake Superior and Louisiana. Abundant. [Harpaliis 

 femoratus Dej.] sericea Harr. 



The coarsely and sparsely punctured alternate intervals of the 

 elytra would ally the genus with Anadaptus, except that here the 

 punctured intervals are 3-5-7, and not the alternate intervals 

 beginning with the second as in Anadaptus porosus; this is a very 

 singular and exceptional feature in sericea. 



Dicheirus Mann. 



We come here upon a series of generic types differing in a note- 

 worthy way from those that precede in the short basal joint of the 

 hind tarsi, either actually, due to the very much shorter tarsus, 

 or relatively as in D. piceus and allied species, where the first joint 

 is very much shorter than the next two combined ; in species of the 

 dUatatus type, the principal abbreviation of the tarsus appears in 

 joints 2-4, so that the basal joint may still be as long as the next 

 two combined or nearly so, although never longer and often shorter 

 than the fifth. The tarsi in this genus are conspicuously and 

 sometimes rather closely pubescent above, whereby in addition it 

 differs from the genera that precede. The terminal spur of the 

 anterior tibiae is strongly trifid throughout. In general habitus it 

 differs completely from Anisodactykis or any close relative of that 

 genus, being smaller in size of body, narrow in form and constantly 



