316 BULLETIN 18 2, UNITED STATES NATIONAL MUSEUM 



a little longer than second. Male^ seventh sternite promhiently 

 rounded but truncated in the middle third by a broad rounded 

 emargination, the angles rounded; eighth sternite with a triangular 

 emargination four times as wide as deep and preceded by a triangular 

 depression. Female^ apical sternites feebly rounded. Length, SVa 

 mm. 



Type locality. — "Columbia." 



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

 Museum, Berlin. 



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



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

 Hispaniola: Haiti, Port-au-Prince (Darlington, in M.C.Z.), Ennery (Darlington, 



in M.C.Z.) ; Dominican Republic, Villa Altagracia (Darlington, in M.C.Z. ), 



Puerto Plata (Darlington, in U.S.N.M.). 

 St. Croix: (Blackwelder station 344). 

 St. Lucia: (H. E. Box, as Blackwelder station 444G). 



Specimens examined. — I have seen the two specimens collected by 

 me in 1935-37 and nine collected by Dr. Darlington. 



Remarhs. — The description is drawn from the two specimens now 

 in the United States National Museum. These agree with the original 

 description of nitidum but are distinguished from other species by the 

 male characters. The color arrangement of the elytra will at once 

 distinguish it among the West Indian species. It belongs in the 

 subgenus Pseudolathra. 



My specimens were cau'ght flying at dusk. 



5. LOBRATHIUM MARGIPALLENS (DuVal) 



Lathrohium marffipallens DuVax, 1857, p. 41. — Bkbnhauer, and SCHuniET, 1912, 



p. 263. — Leng and Mutchler, 1914, p. 405. — Blackwelder, 1930a, p. 110. 

 Lathrohhimi margmipallens Ciie\'rolat and Fauvel, 1SG3, p. 435 (missiielling), 

 Lathrohium insulare Cameron, 1922, p. 113. — Scheerpeltz, 1933, p. 1277. 

 Lol»-athinm tnargipallens (DuVal) Blackwelder, 1939a, p. 110. 



Description. — Piceous, more or less rufescent especially in front, 

 elj^'tra with apex narrowly and indefinitely paler. Head with sparse 

 moderate punctures separated by one to three times their diameter; 

 without ground sculpture; gular sutures moderately separated, most 

 approximate before middle, rather widely divergent posteriorly. 

 Pronotum, very sparsely punctate; middle smooth space outlined by 

 two regular series of punctures, varying from 7 to 10 punctures in each 

 series; with a sigmoid lateral series of 7 to 9 punctures, and a few 

 between this and margin; without ground sculpture. Elytra with 

 rather feeble punctures in series, one sutural, two discal, and one post- 

 hmneral; without ground sculpture. Hind tarsus with first segment 

 longer than second. Male, seventh sternite slightly produced in 

 median three-fifths, the process truncate and with a feeble rounded 



