AMARIN.E 229 



in jacobinus, but much less coarsely punctate, the median stria similar; 

 elytra unusually inflated, though three-fifths longer than wide, a third 

 wider than the prothorax, the eighth stria as in jacobinus, the subapical 

 sinus deeper; striae more deeply impressed, coarsely punctate and crenate 

 anteriorly; the scutellar long, coarsely punctate. Length (9 ) 12.0 mm.; 

 width 4.8 mm. California (a single female from the Levette collection, 

 without more definite indication of locality). 



This species, while associable rather closely with jacobinus, differs 

 in its relatively smaller and much less transverse prothorax, without 

 trace of anterior punctures and with less parallel sides at base, and 

 also in its more inflated elytra, with coarser crenating strial punc- 

 tures and deeper subapical sinus. 



Curtonotus spadiceus n. sp. Outline narrow, subparallel and elon- 

 gate, rather shining, piceous-black to slightly paler; head barely three- 

 fifths as wide as the prothorax, with moderate eyes and narrow sub- 

 oblique anterior strioles; antennae ferruginous, nearly as long as the head 

 and prothorax (cf), shorter (9); prothorax two-fifths to one-half wider 

 than long, the sinuate apex equal in width to the base and with moder- 

 ately blunt angles; sides rounded, sinuate and parallel to diverging at 

 base, much more broadly reflexed than in the two preceding and punc- 

 tulate along the gutter; surface with fine scattered punctures anteriorly, 

 the latero-basal impressions large, shallow, punctate and single, the car- 

 ina long and strong; punctures extending across the middle as usual, the 

 median stria abbreviated at apex but not at base; elytra fully three- 

 fourths longer than wide, not or just perceptibly wider than the pro- 

 thorax, the lateral series broadly interrupted; subapical sinus rather deep 

 (cf), or broader and shallow (9); striae moderate and with moderate 

 punctures anteriorly, the intervals nearly flat except apically. Length 

 (d" 9 ) 11.0-13.0 mm.; width 4.0-4.6 mm. New Mexico (Jemez Springs, 

 Las Vegas and Fort Wingate). Eleven specimens. 



Related to laticolHs but much narrower and with less transverse 

 prothorax. In some examples the thoracic fovese are very obso- 

 letely subdivided longitudinally but never so evidently as in lati- 

 collis, and their punctures are less coarse. 



Curtonotus tartareus n. sp. Form elongate, narrow and parallel, 

 strongly shining, black, the under surface blackish-piceous; legs obscure 

 rufous; head three-fifths as wide as the prothorax, with only very mod- 

 erately convex eyes, the strioles rather fine, parallel; antennae dark ferru- 

 ginous, long and somewhat slender, not quite as long as the head and 

 prothorax, the latter but slightly transverse, even less than a third wider 

 than long, the sinuate apex with broadly obtuse angles and equal in 

 width to the base; sides but moderately reflexed, punctulate, broadly 

 rounded, becoming rapidly sinuate and parallel for a short distance 

 before the very acute angles; surface impunctate anteriorly, the impres- 

 sions and carinae nearly as in laticoUis but much more finely punctate; 



