88 MEMOIRS ON THE COLEOPTERA 



near the outer side of the second stria at three-fifths ; tarsi rather short, 

 the posterior glabrous above, the first joint scarcely so long as the 

 fifth. Length (d 71 ) 1 1-5 mm.; width 4. 8 mm. Colorado (Boulder Co.). 

 [Harpalus aliemis || Lee.] egregius nom. nov. 



Longicollis Lee., is stated by Horn to be the same as longior 

 Kirby, but as this is doubtful to some extent, I have not made the 

 change. A singular characteristic of nearly all the species is the 

 fact that the larger examples in each sex are proportionally stouter 

 than the smaller ones, and for this and other reasons it is a difficult 

 operation to properly segregate the species in a miscellaneous 

 mixture of material, but the species are nevertheless well denned, 

 as a rule, and the placing of compar and erythropus as varieties of 

 pennsylvanicus in the Henshaw list is a gross error. The hairy 

 upper surface of the tarsi isolates this group from every other in 

 our fauna but because of its inconstancy can scarcely be regarded 

 as a generic character; it affects as well the similar European and 

 Chinese species that are among my exotic material. In the Aniso- 

 dactylini use will be made of similar features in the differentiation 

 of certain genera allied to Dicheirus, as it there appears to be 

 more significant taxonomically. The name alienus (1879), replaced 

 above by egregius, is preoccupied by Bates (Proc. Zool. Soc., 1878, 



P- 59i)- 



Group VI. (mduus). 



This is by far the largest group of the genus and the species are 

 rather diversified in habitus; the vast majority are small, being 

 under 10 mm. in length, but there are some that are notably large 

 by comparison. There is a parallelism in general outline and 

 structure between some sections of this group and the next, so 

 marked in a few cases as to suggest that the presence or absence of 

 accessory abdominal setae may be purely arbitrary as a group 

 character, but it is utilized nevertheless as a convenient means of 

 dividing the horde of species of these two groups into sections more 

 readily aiding identification in dichotomous tables. The mentum 

 tooth is small and inconstant, being entirely obsolete in some species 

 such as fallax. Patronus reproduces almost the exact facies of the 

 fraternus group, but there is no trace of accessory abdominal setae; 

 the absence of denticulate sutural angles in the female led me to 

 believe that it might be the rare funestus of LeConte, but that 



