ClCINDELID/E 17 



group, and, from the sequoiamm group, which also possesses the 

 character in common with most species of the subgenus, it may be 

 known by the smooth or nearly smooth pronotum. Temperatus 

 is a species quite distinct from horni, to which I formerly attached it: 



Omus temperatus ssp. difficilis nov. Similar to temperatus in general 

 form but with slightly less elongate antennae and shorter, more strongly 

 punctate elytra, somewhat distinctly ventricose, dull, the elytra rather 

 shining; head feebly but distinctly rugulose, not punctate anteriorly, the 

 labral lobe not very prominent though medially truncate; eyes very 

 convex; prothorax obtrapezoidal, distinctly wider than long, much wider 

 than the head, scarcely more than two-thirds as wide as the elytra, the 

 sides evenly arcuate from apex to base, the fine side margin attaining the 

 latter; surface less smooth than in temperatus and having distinct rem- 

 nants of the vermiculations of sequoiarum; elytra evenly oval, three-fifths 

 longer than wide, the sides arcuate, widest at the middle, the humeri not 

 evident; punctures much larger, deeper and less close-set than in tem- 

 peratus; anterior tarsi (cf 1 ) with the first three joints very eccentric, the 

 second much the widest. Female unknown. Length 14.0 mm.; width 

 5.8 mm. California (Mariposa Co.). 



Theelytral sculpture much more closely resembles that of horni 

 than that of temperatus, where the punctures are smaller than in any 

 other of the present group, but they are nevertheless smaller and 

 shallower than in horni, finely lineate at the bottom and with more 

 alutaceous interspaces. 



Omus temperatus ssp. mariposae nov. Larger, longer and less ven- 

 tricose than in the preceding, with less oblique thoracic sides, opaculate, 

 the elytra feebly shining; head distinctly narrower than the prothorax, 

 rather strongly rugulose throughout; labral lobe large, almost evenly 

 rounded; frontal punctures fine, barely visible at the middle near the 

 apex; eyes strongly convex; antennae slender, moderately long; prothorax 

 feebly obtrapezoidal, barely a fifth wider than long, the sides feebly 

 arcuate, the margin not quite attaining the base; surface with the ver- 

 miculate incised lines almost as deep as in sequoiarum but with the rugae 

 flat; elytra oblong-oval, subparallel, narrowing behind the middle, the 

 humeri broadly rounded; punctures rather coarse, impressed, not very 

 close-set, their bottoms coarsely and briefly lineiform; anterior tarsi 

 (cf ) less inflated than in difficilis and with less eccentric joints, the second 

 but little wider than the third. Female unknown. Length 15.0 mm.; 

 width 6.0 mm. California (Mariposa Co.). 



This form has more of the horni and less of the sequoiarum 

 habitus than difficilis, but it is much narrower and more elongate 

 than horni, with less coarse or deep elytral punctures and more 

 elongate and more oblong hind body. 

 T. L. Casey, Mem. Col. VII, Oct. 1916. 



