286 BULLETIN" 182, UNITED STATES NATIONAL MUSEUM 



My specimons were taken "on cuciimber," under rotting mango 

 fragments, under sand and gravel along a stream, and flying at dusk. 

 The Baragua specimen was taken "in soil of sugarcane fields." 



7. SCOPAEUS MARGINATUS Cameron 



Scopaetis marginalus Cameron, 1913b, p. 349. — Leno and Mutchijer, 1917, p. 

 199.— SCHEERPELTZ, 19,33, p. 1267.— Blackwelder, 1939a, p. 106. 



Description. — Piceous, the apex of the elytra narrowly rufotesta- 

 ceous. Head slightly emarginate behind, the angles rounded ; labruni 

 with two moderate median denticles separated by a rounded notch, 

 outer angles prominently angled, almost denticulate; guiar i:uturos 

 moderately separated in front, divergent posteriorly ; very finely but 

 discretely punctate, without distinct ground sculpture. Pronofum 

 about one-sixth longer than wide ; anterior angles narrowly rounded ; 

 sides scarcely emarginate in front, moderately arcuate to base ; rather 

 indistinctly and confu.sedly punctate, not distinctly sculptured but 

 rather coriaceous. Elytra not punctate but with tuberculate sculp- 

 ture, the tuberculi rather feeble and rounded, surface uneven. Male^ 

 fourth and fifth sternites with a transverse fold, seventh sliglitly 

 emarginate and feebly impressed, eighth with a deep narrow excision, 

 the outer angles broadly rounded. Female^ eighth sternite rounded. 

 Length, 2^/^ to 3 mm. 



2'ype locality. — J;unaica. 



Types. — In collection of Dr. Cameron. 



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



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



Jamaica: (Cameron, 1913; Leng and Mutchler, 1917; Scheerpeltz, 1933; Hubbard, 

 in U.S.N.M.), Triniiyville (Blackwelder ytaticn 428), Moutego Buy (Blacli- 

 welder station 407), Santa Cruz ( Blacliwelder station 421), Gordon Town 

 (Blacliweldcr stations 368B, 382, 383), Blue Moimtains (Darlington, in 

 M.C.Z. ). 



Specimens examined. — I have seen the type and 8 other specimens in 

 Dr. Cameron's collection, 1 in the Museum of Comparative Zoology, 

 2 females in the United States National Museum, and 19 examples 

 collected by Chapin and Blackwelder in February 1937. 



Remarks. — There is some variation in the density of the punctation 

 of the head and pronotum and likewise in the appearance of vague 

 ground sculpture. The shape of the head and the characters of th*:^ 

 male indicate that this species belongs in the subgenus Scopaeus s. str., 

 although the classification of the subgenera is not yet in a very settled 

 condition. 



Our specimens were collected under stones along the edge of streams 

 and flying at dusk. 



