218 BULLETIN 182, UNITED STATES NATIONAL MUSEUM 



10. STENUS MUTCHLERI, new species 



Description. — Shiny piceous black. Head scarcely at all impressed 

 between the eyes ; labrum broadly rounded ; with very coarse and deep 

 punctures separated by much less than their diameter by feebly 

 convex intervals; without distinct smooth areas; without ground 

 sculpture. Pronotum with coarse and deep punctures, very narrowly 

 separated, the intervals almost rugose and with traces of ground 

 sculpture; as long as broad, widest at the middle, arcuately nar- 

 rowed to apex, emarginately narrowed to base. Elytra one-half 

 wider than pronotum, one-tenth wider than long; humeral callus 

 feeble but with anterior face impunctate; punctures coarser than on 

 pronotum, more distinct and sometimes separated by one-half their 

 diameter by shining intervals; without trace of serial arrangement; 

 pubescence rather long. Abdomen not margined; with moderately 

 large but feeble punctures rather dense; with traces of ground 

 sculpture apically. T'arsus with fourth segment strongly bilobed. 

 Male., seventh sternite very feebly emarginate; eighth with a small 

 triangular emargination twice as wide as deep. Female., seventh 

 sternite very feebly emarginate; eighth sternite truncate. Length, 

 21/^ to 23/4 mm. 



Type locality. — Cuba, 7 kilometers north of Vinales. 



Types. — Holotype and 10 pai-atypes in the American Museum of 

 Natural History, collected on September 16-22, 1913. Four para- 

 types in the United States National Museum (No. 52494) and two 

 in the Museum of Comparative Zoology. 



Records. — The following are the records known to me : 



Cuba: Vinales (A.M.N.H., U.S.N.M., M.C.Z.), Candelaria (M.C.Z.), Solcdad 

 (M.C.Z. and U.S.N.M.). 



Specimens examined. — I have seen the 17 types and 3 other speci- 

 mens. 



Remarks. This species is similar to jugalh but differs by its short 

 pronotum, broader emargination of the eighth sternite of the male, 

 and the absence of the spongy area of the seventh sternite. It also 

 differs markedly in size and appearance. 



I have received no record of its habits. 



11. STENUS MORRISONI. new species 



Description. — Black, elytra and abdomen piceous. Head not bi- 

 impressed betvreen the ej^es; not abruptly elevated at edge of eyes; 

 labrum broadly rounded, feebly flattened in front; with conrse and 

 deep punctures generally separated by less than half their diameter, 

 interstices rather flat, without impunctate areas; without gi'oimd 

 sculpture; pubescence distinct. Pronotum one-third longer than 

 wide, widest near middle, sides arcuate in front, almost emarginate 



