HARPALIISLE 73 



deeply striate and with less convex intervals in the male, the apical 

 sinus deeper, the spine of the outer angle even more pronounced; 

 lateral margins shallower and less narrowly re flexed. Length (cT 9 ) 

 15.0-18.0 mm.; width 5.3-6.0 mm. Northern New York to Missouri 

 and Nebraska. Eight examples caudalis n. sp. 



4 Body about as narrow and elongate as in err aliens but much more 

 convex, extremely shining and sculptureless throughout above in 

 the male and deep black in color, blackish-piceous beneath, the legs 

 paler, rufous; head nearly as in erraticus, the eyes not quite so 

 prominent; prothorax a fourth wider than long, throughout nearly 

 similar, except that the reflexed side margins are a little narrower 

 and the latero-basal punctures stronger as a rule, the angles obtuse 

 and narrowly rounded, the sides more strongly converging basally 

 than in either of the first two species; elytra shorter, two-thirds 

 longer than wide, only about a fourth wider than the prothorax, the 

 striae similarly deeply impressed, with strongly convex intervals, 

 the scutellar stria not quite so long, not joining the first, the apical 

 sinus (cf ) less broad and relatively deeper externally, the parallel 

 sides more arcuate and with rather narrower reflexed margins; tarsi 

 nearly similar, the first joint of the posterior fully as long as the 

 fifth. Length (cT) 14.5-15.0 mm.; width 5.0-5.2 mm. New Mexico 

 (Fort Wingate). Two examples collucens n. sp. 



Body smaller and much shorter, more depressed and rather less shining, 

 only a little larger in the female than in the male, the elytra ( 9 ) 

 more shining than in erraticus (9 ) and very much more so than in 

 the nearly opaque caudalis, black, the under surface more piceous, 

 the legs pale testaceous, the antennae and trophi pale as usual, the 

 female a little paler than the male; head nearly as in the preceding 

 though relatively not quite so large; prothorax much shorter, 

 two-fifths to nearly one-half wider than long, similarly with basally 

 converging sides and base somewhat narrower than apex, the surface 

 and obtuse, narrowly rounded basal angles also similar; elytra three- 

 fifths to two-thirds longer than wide, much less convex than in 

 collucens but similar in this respect to erraticus, the striae deeply 

 impressed and the intervals strongly convex and almost equally 

 shining in both sexes, the sinus deepest externally, the outer angle 

 sharp but very obtuse, scarcely more so in the male than in the 

 female; marginal line of foveae sparse, smaller and confused medially 

 but not interrupted; abdomen with the basal punctures very nu- 

 merous, strong and conspicuously setigerous. Length (cf 9 ) n.o 

 15.0 mm.; width 3.8-5.4 mm. New Mexico (Jemez Springs), 

 John Woodgate. Twelve examples acomanus n. sp. 



5 Sides of the prothorax not or only very feebly and briefly sinuate 

 before the basal angles, which are distinctly more than right. Body 

 very much larger in the female than in the male, the apical sinus 

 of the elytra broad as usual, rather feeble and broadly curved (cf ), 

 or deeper externally (9 ), the angle very broadly obtuse and some- 

 what rounded in the former, nearly right and rather sharply marked as 

 a rule in the latter, sex; head relatively a little larger than in aco- 

 manus but otherwise nearly similar; prothorax much more evidently 



