190 MEMOIRS ON THE COLEOPTERA 



Differs from texana in the finer, more confused elytral punctures, 

 longer antennal joints and broader, more parallel tarsi, and, from 

 fermginea, in its broader antennae, with quadrate and not oblong 

 joints, smaller elytral punctures and in the tarsal characters. 



Helluomorpha papago n. sp. Much smaller than the preceding and 

 more slender but otherwise nearly similar, shining and testaceous, 

 the elytral hairs stiff, longer and less numerous but similar in arrange- 

 ment; head as wide as the prothorax, with prominent eyes and convex, 

 sparsely and feebly but not finely punctate surface; antennae less broad, 

 the joints fully as long as wide or somewhat longer, sculptured as in 

 texana and latitarsis; prothorax as in the preceding but smaller and with 

 the punctures much finer and still sparser, closer laterally and a little 

 coarser basally, the basal angles similar though less acute and more 

 retracted; elytra three-fourths longer than wide, one-half wider than 

 the prothorax, similar in general form, the costae broader and much 

 feebler, separated by feeble channels, which are not at all wider than the 

 costae and having each two rather close-set series of very moderate, widely 

 and irregularly separated punctures; tarsi much more slender, more 

 convex and with the joints not parallel; abdomen finely, sparsely punc- 

 tate. Length (cf) 12.3 mm.; width 3.8 mm. Arizona (probably 

 southern). 



Distinct from all the other species in elytral sculpture and in the 

 sparse and very irregular punctuation; the head is relatively larger 

 and more convex than in latitarsis. 



Helluomorpha languida n. sp. Rather small in size and not much 

 dilated, shining and testaceous; head very nearly as wide as the prothorax, 

 irregularly and rather coarsely but feebly and sparsely punctate, the 

 eyes moderate in size but very prominent; antennae more slender than 

 usual, extending to basal fifth of the elytra, the joints nearly asferruginea 

 but not quite so distinctly elongated; prothorax not quite as long as wide, 

 less rounded at the sides than usual, feebly narrowed posteriorly where 

 the sides become gradually rather deeply and broadly sinuate, the hind 

 angles somewhat prominent though obtuse, sharply defined and more 

 reflexed, the usual minute sinus before them obsolescent; base transverse, 

 sharply oblique at the sides, much wider than the sinuate apex; surface 

 coarsely, deeply and sparsely punctate, the median line broadly impressed 

 and the basal impressions large and deep, shorter and less linear than in 

 fermginea; disk, at each side of the median impression, broadly almost 

 impunctate; elytra short, only slightly broadened from base to near 

 the apex, the apices broadly rounded as usual, three-fifths to two-thirds 

 longer than wide, four-fifths wider than the prothorax, the smooth costae 

 broadly and feebly elevated and somewhat indefinite, the concave lines 

 broader than the costae, with two irregular series of moderate punctures, 

 the latter becoming much confused laterally and apically; tarsi unusually 

 slender. Length (c? 9 ) 12.0-13.0 mm.; width 3.9-4.1 mm. Texas 

 (Brownsville), F. H. Snow. Four examples. 



