OMUS AND ClCINDELA II 



Group VI (sequoiarum) . 



In some of the species of this group there is a decided sexual 

 inequality in the antennae, similar to that so markedly developed 

 in the audouini group. The various species and subspecies seem 

 to be confined to the Sierras, from Sierra to Mariposa Co. ; they are 

 generally of rather stout build and with opaculate or feebly shining 

 integuments, but are less ventricose than in the Icevis group. So 

 far as known to me they may be differentiated as follows: 



Body decidedly elongate and of larger size, strongly convex. Head 

 narrower than the prothorax, rugulose throughout, the impressions 

 feeble, the front between them less coarsely but distinctly rugulose 

 and without punctures; labrum moderately and arcuately lobed; 

 prothorax about as long as wide (c?) or wider than long (9 ), ob- 

 trapezoidal, widest near the apex, with the oblique sides but very 

 feebly arcuate and coarsely and strongly re flexed, the margin at- 

 taining the base, which is transverse, very feebly bisinuate; surface 

 finely and very moderately vernacularly rugose, equally throughout; 

 elytra very evenly elongate-oval and strongly convex, three-fourths 

 longer than wide, widest exactly at the middle, the punctures small, 

 not deep, aciculate and widely separated, but little larger and still 

 well separated on the flanks, the foveae small and very inconspicuous. 

 Length (cf 9 ) 16.5-20.0 mm.; width 5.8-7.0 mm. California 



(Mokelumne Hill, Calaveras Co.), Blaisdell blaisdelli Csy. 



A Nearly similar but still larger, the head nearly similar throughout; 

 prothorax larger, wider than long in both sexes, the sides similarly 

 coarsely reflexed but more arcuate, the rugulosity rather coarser; 

 elytra similar in their regularly elongate-oval form but with the 

 punctures very coarse and deep, separated by about their own 

 diameters and, on the flanks, not coarser, as is usual, but smaller 

 and more close-set though not in mutual contact; hind tarsi 

 notably long. Length (cf 9 ) 17.5-21.0 mm.; width 6.0-7.2 mm. 



California (Placerville, Eldorado Co.) cribripennis Csy. 



Body apparently rather elongate. Deep black, shining; head moderate, 

 wrinkled all over, except the middle of the front, which is smooth and 

 sparsely punctate, the impressions feeble; labrum moderately, 

 arcuately lobed; prothorax wrinkled throughout but not deeply, the 

 lateral margin fine and but slightly reflexed, attaining the base; 

 sides feebly arcuate, moderately converging to the base; elytra 

 elliptical, widest in front of the middle, moderately convex, closely, 

 not deeply punctate, confusedly so toward apex. Length 17 mm. 



California (Coulterville, Mariposa Co.) intermedius Leng 



Body notably stout in form; sides of the prothorax finely but rather 

 strongly reflexed, much more finely so than in blaisdelli and cribri- 

 pennis; median part of the front nearly smooth and with scattered 



small but distinct punctures as in intermedius 2 



2 Body larger and very stout, rather dull in lustre as a rule; head much 

 smaller than the prothorax, rugulose throughout but more obsoletely 



