MONOGRAPH OF WEST INDIAN STAPHTLINIDAE 349 



moderately large, prominent; labrum with two acutely triangular 

 median teeth adjacent at base but without other denticles; impunc- 

 tate but with dense fine ground sculpture and sparse rather indistinct 

 round tubercles; without elevated lines marking sutures on vertex. 

 Pvonotumi slightly longer than wide, as wide as head, widest just 

 before middle, sides evenlj' rounded posteriorly, base not distinct; 

 with three large setae along each side; midline feebly depressed and 

 without raised line ; witli sculpture and tuberculi more distinct than 

 on head. Elytra one-fourth wider than long, four-fifths as long as 

 pronotum; with very coarse punctures somewhat obscured by the 

 uneven surface. Abdomen with punctures indistinct; without dis- 

 tinct ground sculpture. Male^ seventh sternite feebly emarginate 

 throughout; eighth with a broad emargination at least four times as 

 wide as deep. Female^ sternites not modified. Length, 2^^ mm. 



Type locality. — Dominican Republic, cloudforest in the vicinity 

 of Vaile Nuevo; elevation about 6,000 feet. 



Types. — Holotype, male, and two paratypes in the Museum of Com- 

 parative Zoology; two paratypes in the United States National 

 Museum (No. 52520) ; collected in August 1938 by Dr. P. J. 

 Darlington, 



Re<;ord8. — The following is the only record known to me : 



Kispaniola: Dominican Kepublic, Valle Nuevo (Darlington, in M.C.Z. and 

 U.S.N.M.) 



Specimens exarnined. — I have seen only the five types. 



Remarks. — This species may bo distinguished by its lack of raised 

 lines on the head and pronotum. It is also unique in the distinct- 

 ness of the tuberculi. 



I have received no record of its habits except that it was taken 

 in cloudforest. 



2. STILOSAURUS LINEATUS, new suecies 



Description. — Castaneous or testaceocastaneous. Head moderately 

 large, semicircular behind, quadrate in front, about as wide as elytra; 

 eyes moderately large, prominent ; labrum with two acutely triangu- 

 lar median teeth adjacent at base and flanked by small angulations 

 but no other denticles; without punctures or distinct ground sculp- 

 ture but with indistinct tuberculi basally and laterally only, surface 

 rather uneven; without elevated lines marking sutures on vertex. 

 Pronotum one-sixth longer than wide, not quite as wide as head, 

 widest near middle, sides rather feebly arcuate and rounded into 

 base; with two to four large setae along each side; midline feebly 

 impressed in apical half and marked by a fine smooth raised line; 

 with dense ground sculpture, and with tuberculi a little more distinct 

 than on head. Elytra two-fifths wider than long, five-sevenths as 

 long as pronotum ; with coarse punctures almost completely obscured 



