298 BULLETIN 182, UNITED STATES NATIONAL MUSEUM 



Recorfls. — The following is the only record known to me : 



Trinidad: Tunaimna (Wober, in M.C.Z. and U.S.N.M.). 



Specimens escaviined. — I have seen only the (wo types. 

 Remarks. — This species is distinoiiished by its obsolescent puncta- 

 tion and lack of pronotal ground sculpture. 

 I have received no record of its habits. 



3. MONISTA DARLINGTONI, new species 



Desen/ption. — Head and pronotuni piceous, elytra rufopiceous with 

 apical fourth testaceous, abdomen rufous. Head suborbicular ; eyes 

 small but prominent, at over twice their length from base; vertex 

 not modified (in female) ; labrum broadly rounded and feebly 

 emarginate at middle; punctures coarse and distinct, usually 

 separated by less than half their diameter; without distinct ground 

 sculpture. PronotuTn as broad as long, widest at anterior two-thirds, 

 thence strongly narrowed to neck, and rather strongly to base; with 

 punctures as on head but a little less distinct; without ground 

 sculpture. Elytra with umbilicate punctures almost entirely obso- 

 lete having merely the central setigerous punctule : without distinct 

 ground sculpture. Abdomen finely, sparsely, and minutely submu- 

 ricately punctate; withont ground sculpture, Male^ unknown. 

 Female., sternites urmiodified. Length, V^/^ mm. 



Type locality. — Trinidad, St. Augustine. 



Types. — Holotype in the Museum of Comparative Zoology; one 

 paratype in the United States National IMuseum (No, 52358) ; col- 

 lected in April 1929 by Dr. P. J. Darlington. 



Records. — The following is the only record known to mo: 



Trinidad: St. Augustine (Darlington, in M.C.Z. and U.S.N.M.). 



Specimens examined. — I have seen only the two types. 



Remurks. — This species is distinguished by the distinct punctures 

 of the head and pronotum and the absence of sculpture on tlie 

 clypeus. Like the preceding species the lack of males leaves us in 

 doubt as to the condition of the vertex in that sex. 



I have received no record of its habits. 



4. MONISTA VOLA, new species 



Description. — Rufous, apex of elytra and all of abdomen rufotes- 

 taceous. TIead subquadi'ate; eyes small but somewhat })r()m.inent ; 

 vertex modified in male; impunctate but with rather dense setigerous 

 tuberculi especially posteriorly, and with minute ground sculpture 

 on clypeus; labrum broadly rounded but feebly emarginate at middle. 

 Pronotum one-sixth longer than wide, widest at anterior two-fifths, 

 thence strongly narrowed to neck, feebly narrowed to base; with 

 mnbilicate punctures almost completely obsolete, making sui-face 



