432 PROCEEDINGS OF THE NATIONAL MUSEUM vol. i04 



middle, midline only slightly deeper at each end, anterior postcoxal 

 line deep, extending outward to the scabrous area at side, posterior 

 arcuate line in front of posterior coxal plate somewhat longer than 

 usual, deep and distinct. Abdominal segments shining, minutely 

 alutaceous, finely margined posteriorly, finely crenate in front, the 

 terminal segment more widely so, each with a transverse, median, 

 scabrous line and row of setigerous punctures, the very fine setae 

 emerging behind small tubercles or granules. Pygidium scabrous, 

 fringed apically with moderately long, very fine hairs. Anterior femur 

 with strong, deep anterior marginal line, posterior face with scattered 

 arcuate punctures. Middle and hind femurs with strong, deep 

 posterior marginal line from knee to trochanter, otherwise smooth 

 except for the usual curving row of coarse setigerous punctures over 

 the apical half. Posterior femur about one-fifth wider than the middle 

 femur. Posterior tibia about three times as long as wide at apex, 

 spurs narrow, long spur equal in length to first two tarsal joints com- 

 bined. First tarsal joint elongate-triangular, equal in length to fol- 

 lowing two together. Length 3 mm., width 1.4 mm. 



Type: In collection of California Academy of Sciences. 



Type locality: Paso Cano, Rio Papaloapam, Vera Cruz, Mexico. 



Specimens examined: Holotype and 22 paratypes. 



Paratypes: Mexico: Vera Cruz: 21, Paso Cano, Rio Papaloapam, 

 Apr. 19, 1932, Van Dyke collection. Costa Rica: Guanacaste: 1, 

 Santa Elena, Aug. 20, 1928, Nevermann collection. Paratypes will 

 be placed in U. S. National Museum, Naturhistoriska Ril^smuseum, 

 British Museum, and California Academy of Sciences. 



Remarks: The typical series varies from 2.8 to 3.4 mm. in length 

 and from 1.3 to 1.5 mm. in width. See remarks following P. interrup- 

 tusSsij (p. 429). 



Psanimodius blandus (Fall) 



Psammobius blandus Fall, Joum. New York Ent. Soc, vol. 40, p. 191, 1932. 



Oblong oval, moderately shining, rufotestaceous. Antennae testa- 

 ceous. Head convex, closely, moderately verrucose; occiput finely, 

 roughly, punctate-rugose. Clypeus broadly, rather shallowly emar- 

 ginate, the limiting angles each side well defined, sides finely reflexed, 

 weakly arcuate; genae small, rounded. Pronotum convex, width 

 1.25 mm., length 0.9 mm., anterior angles rounded, sides arcuate, 

 posterior angles very broadly rounding into the arcuate base so that 

 viewed from directly above the pronotum is almost evenly rounded 

 from one anterior angle to the other, sides and base indistinctly 

 margined, rather sparsely fimbriate-crenate, the hairs moderately 

 fine and relatively short; surface finely scabrous throughout, with a 



