420 PROCEEDINGS OF THE NATIONAL MUSEUM vol. io4 



34. Coarse pronotal punctures generally distributed; Florida . armaticeps (Fall) 



Coarse pronotal punctures grouped in a transverse band behind the middle; 



South Carolina, Georgia, South America cruentus Harold 



Psammodius basalis (Mulsant and Rey) 



Psammobiiis basalis Mulsant and Rey, in Mulsant, Ann. Soc. Agr. Lyon, ser. 4, 

 vol. 2, p. 636, (1869) 1870.— Schmidt, in Schenkling, Coleopterorum cata- 

 logus, pt. 20, p. 83, 1910. — Schmidt, Coleoptera, Aphodiinae. Das Tier- 

 reich (Deutsche Zool. Ges.), pt. 45, p. 474, 1922. 



Oblong oval, broader behind, shining, dark castaneiis to piceoiis. 

 Antennae testaceous. Head convex, closely, coarsely verrucose, 

 occiput smooth behind a diagonal elevated ridge each side of middle 

 arranged in chevron. Clypeus broadly, shallowl}'', triangularly emar- 

 ginate, angles each side obtusely rounded, sides weakly arcuate, a 

 slight notch at clypeal suture, genae not prominent, rounded, fimbriate. 

 Pronotum slightly narrower in front, width 1.5 mm., length 1 mm., all 

 angles obtusely rounded, base sinuate, slightly lobed at middle, mar- 

 ginal line fine, entire, sides and base fimbriate with fine, simple hairs, 

 strongly crenate toward anterior angles, base smooth, unbroken, sur- 

 face divided into five smooth, convex, transverse ridges by four deep 

 furrows, each with a single row of close, shallow, moderately coarse 

 punctures, the first furrow extending almost into the anterior angles, 

 then turning back and out to the sides at middle, the second and fourth 

 relatively short, the third ending at the lateral foveae, posteriorly the 

 median line smooth, lightly impressed, anteriorly indicated by irregu- 

 larities in both ridges and punctures of the furrows. Elytra as wide 

 as pronotum at base, width 2 mm., length 2.5 mm., sides fimbriate 

 with long, fine, hairlike setae, weakly arcuate and divergent to beyond 

 middle then evenly rounded to apex, base not margined, striae fine, 

 not strongly impressed, intervals almost flat, with a slightly irregular 

 median row of very close, minute punctures, tenth interval not differ- 

 ent from the others. Metasternum smooth and shining at middle, 

 setigerously punctate at sides, without anterior postcoxal line. Ab- 

 dominal segments shining, each with a transverse row of long, fine 

 hairs, terminal segment not eroded or crenate in front. Pygidium 

 shining but somewhat irregularly punctate. Anterior femur margined 

 in front, posterior face setigerously punctate with long hairlike setae. 

 Middle femur half as wide as hind femur, both with strong, wide, 

 alutaceous, entire marginal Ime, surface with numerous, scattered, 

 hair-bearmg punctures. Tibiae without oblique ridges but with rows 

 of tubercles along edges and ventral surface. Spurs and tarsi of 

 middle tibiae much longer and narrower than those of posterior, the 

 long spur longer than the first three tarsal joints combined. Posterior 



