WEST INDIAN APHODIINAE — CHAPIN 11 



may have been feeding on the frass pellets. In other cases, species 



have been recorded as collected under bark. As yet but two species 



of this genus have been found in the West Indies. These may be 

 separated as follows: 



1. Abdominal sternites very thickly and finely punctured; anterior 

 tibia with denticle between upper two of the three major teeth ; 



length 4 mm 1. grenadensis Arrow 



Abdominal sternites moderately thiclily and coarsely punctured ; 

 anterior tibia without denticle between upper two of the major 

 teeth ; length 3 mm 2. blackwelderi, new species 



1. SAPROSITES GRENADENSIS Arrow 



Saprosites grenadensis Abkow, 1903, Trans. Ent. Soc. London, p. 514. — Schmidt, 

 1922, Das Tierreich, pars 45, Aphodiinae, p. 412. 



Related to S. parallelus Harold but smaller and with finer puncta- 

 tion. Rufopiceous, with head and pronotum more definitely red. 

 Pronotum simply but irregularly punctate, elytra deeply striate, 

 the strial punctures not very distinct. Metasternum broadly canalic- 

 ulate, abdominal segments densely and finely punctured. Anterior 

 tibia with three major teeth, with a minute tooth between the upper 

 two of the three. Length: 4 mm. 



Type. — In the British Museum. 



Type locality. — Grenada, Grand £tang (1,900 feet). 



Material examined. — The writer has not seen any specimens of 

 this species. The description has been taken from the original 

 publication. 



2. SAPROSITES BLACKWELDERI, new species 



Moderately convex-cylindrical, pronotum slightly wider than elytra 

 at base; castaneous with margins of pronotum and elytra darker. 

 Head convex, clypeus with broad, shallow emargination at middle, 

 surface near the strongly beaded edge asperate, remaining surface 

 moderately densely but not very finely punctured, genal lobe small but 

 more prominent than eye. Pronotmn slightly wider than long, nearly 

 quadrate, surface sculpture similar to that of head, lateral margins 

 finely beaded, base not margined, anterior angles nearly right, poste- 

 rior angles very broadly rounded. Scutellum elongate, small, without 

 punctures. Elytra deeply striate, strial punctures moderately coarse, 

 intervals finely and rather densely punctured, humeral angles strongly 

 denticulate. Pygidium with broad, deep, and sharply defined median 

 groove on basal half, which is minutely punctulate, apical half shin- 

 ing and rather coarsely punctured, transverse carina feebly indicated. 

 Abdomen with sternites fused but with transverse sutures plainly in- 

 dicated, coarsely and moderately densely punctured. Front femur 

 with marginal groove at anterior margin of posterior face only, tibia 



