i68 MEMOIRS ON THE COLEOPTERA 



Hsematochiton bisculptum n. sp. Form very elongate-oval, rather 

 strongly depressed and shining, deep black in color, including the legs, 

 antennae and most of the mouth organs, the elytra red, with the extreme 

 tip black; head half to three-fifths as wide as the prothorax, impressed 

 near the base of each antenna, the punctures not very coarse but strong 

 and somewhat close, largely wanting toward the middle basally; eyes 

 rather large, finely faceted, only moderately prominent; last joint of the 

 maxillary palpi obtriangular but wider than long; antennae shorter than 

 the head and prothorax, the third joint longer than the next two, the 

 eighth slightly wider than long and a little wider than the preceding, the 

 club almost as long as the five preceding joints; prothorax not quite 

 twice as wide as the median length, the sides moderately converging and 

 very evenly arcuate from base to the sharp and distinctly produced 

 apical angles; base very finely, feebly margined, the median lobe broadly 

 rounded but distinct; surface with coarse and elongate-oval shallow um- 

 bilicate and rather widely but irregularly separated punctures in lateral 

 fourth, the median half of the surface abruptly with fine, sparse punctures 

 and a median impuncate stripe not reaching the apex; along the basal 

 sinuses there is a series of still coarser punctures; scutellum angulate, 

 black, minutely, sparsely punctulate; elytra long, nearly four times as 

 long as the prothorax, the two bases exactly equal, at the middle slightly 

 wider, the sides very evenly arcuate, the apex broadly rounded; punctures 

 somewhat close-set in unimpressed series and suturally rather feeble, those 

 basally coarser, especially in the fifth series at base, the series seven in 

 number, all obsolete posteriorly, the sixth not attaining the base, the 

 seventh represented only by a short series at the middle; across the base 

 there is also a series of punctures; under surface almost impunctate; 

 tibiae finely, densely punctulate, except basally, and distinctly pubescent. 

 Length 4.8-5.9 mm.; width 2.2-2.6 mm. Arizona (Chiracahua Mts.). 



It can safely be assumed, if the pronotal punctuation has the 

 strikingly dual character in elateroides that it has here, that this 

 fact would be alluded to in some way by the author; he makes no 

 statement concerning it, however. But there is a lack of agreement 

 also in recording the striation of the elytra, the striae being definitely 

 stated to be eight in number in elateroides; in bisculptum there are 

 six rather complete series, the seventh short and medial and the 

 eighth, completely obsolete; it is true, however, that the eighth is 

 said to be "almost obsolete" in elateroides. Again, the femora are 

 said to be a little compressed in that species, but there is no indi- 

 cation of anything like an obvious compression in the femora of 

 bisculptum. 



^githus Fabr. 



Of the species allied to cardinalis Chev., there seem to be several 

 still undescribed, besides politus Gorh. The two following may 

 readily be identified: 



