MONOGRAPH OF WEST INDIAN STAPHYLINIDAE 249 



infuscatus then ohfuscatus becomes a synonym. I do not have South 

 American examples of infuscatus for comparison. 



My specimens were collected from decaying cocoa pods, from 

 rotting banana stalks, from dung, and flying at dusk. 



8. LITHOCHARIS POSTICATA Erichson 



Lithocharis posticata Emchson, 1840, p. 619. — Lekg and Mutchlee, 1914, 



p. 405.— WoLCOTT, 1924, p. 78 ; 1936, p. 197. 

 Medon (Lithocharis) posticatus (Erichson) Beenhaueb and Schxjbert, 1912, 



p. 243. 



Description. — Piceous, elytra testaceous with apical third blackish, 

 apex of abdomen testaceous. Head a little broader than pronotum ; 

 posterior angles somewhat rounded; labrum bidenticulate ; densely 

 punctate, smooth in front at middle, finely sparsely pubescent, shin- 

 ing. Pronotum a little narrower than elytra, slightly wider than long, 

 moderately narrowed posteriorly; densely but n,ot very finely punc- 

 tate, with smooth midline; finely and sparsely pubescent, shining. 

 Elytra one-third longer than pronotum; densely finely punctate, 

 finely pubescent. Abdomen very finely punctate, with longer pubes- 

 cence. Anterior tarsus feebly dilated. Male, eighth sternite tri- 

 angularly excised. Female, unknown. Length, 2 mm. (From 

 Erichson.) 



Type locality. — Puerto Rico. 



Types. — Either in the Hope Museum, Oxford, or the Zoologische 

 Museum, Berlin. 



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



Puerto Rico: (Ericiison, 1840; Leng and Mutchler, 1914; Wolcott, 1924, 1936). 



Specimens exaviined. — I have seen no examples of this species. 



Remarks. — Apparently this species has never been seen since it was 

 described by Erichson. I am not able to refer to it definitely any 

 of the specimens before me and therefore include it as an unknown 

 species. It appears to belong to the subgenus StUocharis. 



I find no record of its habits. 



9. LITHOCHARIS HERES, new species 



Description. — Rufotestaceous. Head one-ninth wider than long, 

 not emarginate at base, sides evenly rounded into base ; eyes moderate^ 

 separated by more than their length from base; labrum with two 

 denticles within a broad emargination ; gular sutures moderately 

 close, parallel along middle, diverging at both ends; with sparse 

 punctures (possibly somewhat umbilicate) completely obscured by 

 very dense scaly ground sculpture. Pronotum as wide as head, 

 nearly as long as wide; sides feebly converging with all angles 

 strongly rounded; disk without impressions or midline; with punc- 

 tures and sculpture as on head. Elytra not distinctly punctate but 



44900S— 42 17 



