scarab beetle genus psammodius — cartwright 435 



Specimens examined: 6. 



Distribution. — M]^xico: Veracruz: Veracruz. Michoacdn: Apat- 

 zingdn. 



Season. — August. 



Remarks: This species is very close to quinqueplicatus Horn and 

 difficult to separate from it except by size, convexity, and more oval 

 shape. 



Psammodiiis quinqueplicatus Horn 



Psammodius quinqueplicatus Horn, Trans. Amer. Ent. Soc, vol. 3, p. 292, 1871; 



vol. 14, p. 95, 1887. 

 Psammobius quinqueplicatus Schmidt, Coleoptera, Aphodiinae. Das Tierreich 



(Deutsche Zool. Ges.), pt. 45, p. 476, 1922. 



Oblong oval, only slightly broader behind, convex, moderately 

 shining, ferrugineous. Antennae rufotestaceous. Head convex, closely, 

 moderately coarsely verrucose; occiput smooth. Clypeus broadly, 

 triangularly emarginate, angles each side obtuse, sides weakly arcuate, 

 genae inconspicuous, obtusely rounded. Pronotum not narrower in 

 front, width 1.25 mm., length 0.9 mm., anterior angles obtuse, pos- 

 terior angles widely rounded, sides and base strongly margined, 

 crenate, fimbriate, base arcuate, very slightly lobed at middle; disc 

 moderately convex, surface with numerous, close, coarse punctures 

 arranged in five transverse furrows, the intervening convex, smooth 

 ridges very finely punctate, the first two entire, the others interrupted 

 by the coarsely punctate basal half of the median line; sides smooth 

 beyond lateral fovea and in posterior angles. Elytra as wide at base 

 as pronotum, width 1.55, length 2.25, base margined, humeri weakly 

 dentate, sides nearly straight, slightly divergent to about apical 

 third, not fimbriate; striae moderately deep, strial punctures deep, 

 intervals moderately convex, their sides crenate and minutely alu- 

 taceous. Metasternum shining, minutely punctate, depressed at 

 middle, midline strong and deep, a few coarse, shallow, setigerous 

 punctures at extreme sides, anterior postcoxal line and depression 

 in front of the posterior coxal plate evident but not strongly developed. 

 Abdominal segments finely alutaceous, each with a medianly inter- 

 rupted, transverse, median row of coarse, shallow, setigerous punctures 

 bearing very fine long hairs. Pygidium scabrous basally, smooth 

 apically, fringed with fine setae. Anterior femur with strong, deep 

 anterior marginal line, posterior face smooth. Middle and hind femurs 

 with strong, deep posterior marginal line three-fourths or more of 

 total length, a row of three or four setigerous punctures at knee, 

 otherwise shining and very minutely alutaceous. Hind femur about 

 one-fifth wider than middle femur. Width of posterior tibia at apex 

 one-foiu"th to two-fifths of the total length, spurs slender, the longer 

 equal to the first two tarsal joints in length. First tarsal joint elongate- 



