288 BULLETIN 182, UNITED STATES NATIONAL MUSEUM 



lection of Dr. Cameron, 1 in the United States National Mnsemn, ;uk1 

 67 collected by Chapin and Blackwelder in 1935-37. 



Retnarks. — This is a variable species in respect to the sculpture of 

 the pronotum and elytra, the length of the temples, and the abrupt- 

 ness of the emargination of the eighth sternite of the male. The de- 

 scription is drawn principally from a specimen from St. Vincent. 

 This species belongs in the subgenus Scopaeus s. str. 



My specimens were collected from rubbish on the muddy bank of 

 lagoons and ponds, from under seaweed on the beach, from under 

 stones along streams, and flying at dusk. 



9. SCOPAEUS FILUM Sharp 



Scopueus fllum. Shakp, 18S6, p. 542. — Cahky, 188t). p. 220. — 15i:RKH\utR ami Schu- 

 BEKT, 1912, p. 247.— Blackweldek, 1939a, p. lOG. 



Descnptlan. — Castaneous or ferrugineous to testaceous. Head trun- 

 cate behind, not distinctly emarginate, angles moderately rounded: 

 labrum with two small denticles at middle; gular sutures rather nar- 

 rowly separated in front of middle, feebly divergent posteriorly; 

 very finely and rather densely punctate but witli shining interval.-;; 

 without ground sculpture. Pronotum one-fifth longer than wide, 

 anterior angles rather broadly rounded, sides not distinctly emargi- 

 nate in front, straight behind and broadly rounded into base; midline 

 sometimes feebly channeled at base or apex; pronotum without dis- 

 tinct punctures except minute punctulae; surface slightly uneven but 

 without ground sculpture. Elytra not punctate but with a dense in- 

 distinct sculpture which seems to be obsoletely tuberculate. Male. 

 fourth and fifth sternitcs without transverse folds, seventh not dis- 

 tinctly emarginate; eighth sternite with a small shallow rounded 

 abrupt emargination, less than one-half as deep as wide. Female, 

 eighth sternite prominently rounded; eighth tergite rounded. 

 Length, 2 mm. 



Tijj)e locality. — Guatemala, Paso Antonio. 



Types. — In the British Museum. 



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



Cuba: Cayamas (Schwarz, in U.S.N.RI.), Baragua (Cliristenseu, in U.S.N.M.), 

 Soledad (Darlington, in M.C.Z. and U.S.N.M.). 



Jamaica: (Canioroti colloction), Milk River (Blackwelder station 41"t). 



Hispaniola: Haiti (Cameron collection), Dominican Repubuc, Puerto Plata 

 (Darlington, in M.C.Z. and U.S.N.M.), SAnchcz (Darlington, in M.C.Z.), 

 Baralioiia (Darlington, in M.C.Z. and U.S.N.M.), Villa Altagracia (Darling- 

 ton, in M.C.Z.). 



Central America: Guatemala (Sharp, 1886). 



Specimens examined. — I have seen 8 examples in the United States 

 National Museum, 16 from the Museum of Comparative Zoology, 9 in 

 the collection of Dr. Cameron, and 2 collected by Chapin and Black- 

 welder in February 1937. I have not examined the types:. 



