434 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 104 



Psammodius veraecrucis Bates 



Psammodius veraecrucis Bates, in Godman and Salvin, Biologia Centrali- 



Americana, vol. 2, pt. 2, p. 103, 1887. 

 Psammobius veraecrucis Schmidt, Coleoptera, Aphodiinae. Das Tierreich 



(Deutsche Zool. Ges.), pt. 45, p. 477, 1922. 



Oval, strongly convex, moderately shining, ferrugineous. Antennae 

 testaceous. Head convex, closely moderately verrucose; occiput 

 smooth. Clypeus broadly triangularly emarginate, the limiting 

 angles each side obtusely rounded, sides wealdy arcuate; genae incon- 

 spicuous, broadly rounded. Pronotum slightly narrower in front, 

 width 1.15 mm., length 0.8 mm., anterior angles right-angled, posterior 

 angles obtusely rounded, sides and base margined, crenate, fimbriate 

 with fine hairlike setae; disc convex, surface with numerous, coarse 

 punctures arranged closely in five transverse furrows, the first and 

 third usually more distinct than the second and fourth, the fifth 

 sometimes indistinctly represented by three or four punctures each 

 side; median line represented by irregularly placed coarse punctures 

 interrupting the smooth intervening ridges; sides smooth laterally 

 beyond the fovea and in the posterior angles. Elytra as wide or very 

 slightly wider than pronotum at base, width 1.45 mm., length 1.80 

 mm., base margined, humeri finely dentate, sides arcuate, not fim- 

 briate; striae deep, moderate, punctures fine and deep; intervals 

 convex, smooth, sides weakly crenate. Metasternum shining, mi- 

 nutely punctate at middle, midline deeply impressed, anterior post- 

 coxal line and arcuate impressed line in front of posterior coxal plate 

 distinct, a few setigerous punctures and alutaceous sculpture at 

 extreme sides. Abdominal segments very finely crenate in front, 

 minutely alutaceous, each with a medianly interrupted, transverse 

 row of shallow, setigerous punctures bearing long fine hairs. Pygidium 

 scabrous basally, smooth apically and fringed with fine hairs. Anterior 

 fernm* with strong anterior marginal line, two or three coarse punc- 

 tures at elbow, posterior face otherwise smooth. Middle and hind 

 femurs with strong posterior marginal line, one or two fine, marginal 

 setae near trochanter, a posterior curving row of five or six setigerous 

 punctures outward from middle to front of knee, and the usual anterior 

 fringe of similar fine hairs, otherwise smooth and shining. Posterior 

 tibia arcuate, apex slightly more than one-third as wide as total 

 length, inner edge more or less angulate near basal fifth, the tibia 

 narrowing from this point to knee ; spurs slender, the longer subequal 

 in length to first two tarsal joints combined. First tarsal segment 

 elongate-triangular, not as long as the following three combined. 

 Length 2.7 to 2.8 mm., width 1.3 to 1.4 mm. 



Type: In British Museum (Natural History). 



Type locality: "Mexico, Vera Cruz, Tapachula in Chiapas." 



