H. C. FALL. 109 



din a] basal stria each side nearer the margin than the middle, the stria? connected 

 near their anterior extremities by a transverse impressed line, which is obtusely 

 angulate posteriorly, and again by a less distinct impressed line close to the basal 

 margin ; median line from the anterior transverse impression to the base de- 

 pressed and very finely carinulate ; hind angles with a very fine carina close to 

 and parallel with the margin. Elytra feebly convex, three times as long as the 

 thorax, tip broadly obtusely rounded. Front coxa? separated by about two-fifths 

 the coxal width, middle coxa; by fully the coxal width; metasternum longer 

 than the. first ventral segment and with an impressed median line in the apical 

 half. (PI. Ill, figs. 3 and 3«). Length 1-1.2 mm. 



Hah. — New York; California (Los Angeles Co. ; Riverside). 



Seven examples are before me, differing scarcely at all. The 

 carina of the thoracic angles is very fine, and so close to the margin 

 as to be with difficulty distinguished when viewed from above. 



H. ptM'ificus Lee. — Elongate, rufotestaceous, very minutely indistinctly 

 punctulate; pubescence very fine, short and sparse: surface moderately shining 

 but not polished, a little dulled by finer sculpture apparently. Head a little nar- 

 rower than the pro thorax, eyes rather small, separated from the antennal fovea? 

 by about half their own diameter ; tempora slightly shorter than the eyes, which 

 usually appear to be distant from the prothorax by about their own diameter. 

 Antennae, when directed backward, not quite reaching the transverse impression 

 of the prothorax, ninth joint a little wider than the preceding, joints of club 

 transverse, the last but little shorter than the tenth, though distinctly narrower. 

 Prothorax subcordate, a little wider than long, sides rounded in front, sinuate 

 behind ; hind angles a little obtuse, not carinate above, but with a small fovea 

 extending obliquely inward; the disk between these fovea broadly impressed 

 and bearing near the middle two approximate small fovese, which are best defined 

 when viewed obliquely from behind. Elytra widest at about one-third from 

 base, thence obliquely narrowed both before and behind ; apex subtruncate, 

 outer angles rounded. Anterior coxa? separated by about one-third the coxal 

 width, middle coxae by fully their own width. First ventral segment as long at 

 the middle as the next three together, fifth about as long as the two preceding 

 united ; sixth more or less exposed in all specimens examined. Femora stout, 

 clavate ; tibia? gradually wider to apex. (PL III, figs 4 and 4u). Length 9-1.4 mm. 



Hab. — California, Los Angeles Co. (Coquillet) ; Pomona, under 

 bark of decaying log in April ; Palm Springs, about grass roots, 

 and in debris along the Colorado River (Hubbard) ; Arizona, Tuc- 

 son, in decaying Cereu* giganteus, January (Hubbard) ; Santa Rita 

 Mts., in decaying Dasylirion ivheeleri, May (Schwarz). 



Varies somewhat in the form of the prothorax, this being usually 

 more or less transverse, but occasionally nearly or quite as long as wide. 



H. floririuiius sp. nov. — Bufotestaeeous, elytra with an ill-defined darker 

 transverse shade behind the middle ; surface polished and not evidently punc- 

 tate. Tempora short. Hind angles of thorax not carinate, moderately deeply 

 foveate, the transverse subbasal impression narrow, sharply defined, anteriorly 

 arcuate each side, instead of straight as in paeificus and caularum. Length 1 mm. 



TRANS. AM. ENT. SOC. XXVI. NOVEMBER, 1899. 



