SCARAB BEETLE GENUS PSAMMODIUS — CARTWRIGHT 461 



Tarsus four-fifths as long as outer side of tibia, the first joint more than 

 twice as long as its apical width and as long as following three joints 

 combined. Length 3.4 to 4 mm., width 1.7 to 2 mm. 



Type: Fall collection, Museum of Comparative Zoology, Cam- 

 bridge, Mass. 



Type locality: Pensacola, Fla. 



Specimens examined: 56. 



Distribution: Florida: Pensacola, Tampa. Georgia: St. Simon 

 Island. 



Season: March 12 to May 22, August and September, 



Remarks: The only major difference between P. armaticeps (Fall) 

 and P. cruentus Harold seems to be in the size and pattern of the 

 punctures of the pronotum. 



Psatnmodius cruentus Harold 



Psammodius cruentus Hftrold, Berliner Ent. Zeit., vol. 11, p. 282, 1867. 

 Psammobius cruentus Schmidt, Coleoptera, Aphodiinae. Das Tierreich (Deutsche 



Zool. Ges.), pt. 45, p. 478, 1922. 

 Psammobius bidens Schmidt (not Horn, 1871), Coleoptera, Aphodiinae. Das 



Tierreich (Deutsche Zool. Ges.), pt. 45, p. 478, 1922. 

 Psammodius shermani Cartwright, Bull. Brooklyn Ent. Soc, vol. 41, p. 89, 1946. 



(New synonymy.) 



Oblong, shining, dark castaneous. Antennae pale, rufotestaceous. 

 Head moderately convex, closely, not very coarsely verrucose, occiput 

 smooth. Clypeus with an acute triangular tooth each side of the wide, 

 shallow median emargination, sides slightly arcuate, genae rounded, 

 fimbriate. Pronotum convex, width 1.55 mm., length 1 mm., anterior 

 angles obtuse, posterior angles very broadly rounded, base margined, 

 sinuate and slightly lobed at middle, sides and base crenate and 

 fimbriate with moderately long, simple hairs, shorter across base, 

 surface with fine to minute punctures throughout and a curving, 

 somewhat depressed band of few to many, coarse punctures back 

 from the anterior angles, inside the lateral foveae to the base, in a few 

 cases reduced to half a dozen or so large, deep punctures in a median 

 transverse group at base, surface otherwise more or less uneven or 

 wrinkled, especially so just back of the anterior margin. Elytra 

 mai^ined at base, humeri weakly dentate, sides fimbriate with 

 moderately long hair, width 1.85 mm., length 2.5 mm.; striae crenate 

 punctate, the punctures moderate and deep, all intervals convex, the 

 ninth and tenth not different. Metasternum smooth, shining, concave 

 at middle, the median line deep, abruptly terminated at each end, 

 minutely alutaceous at sides, anterior postcoxal line absent, depressed 

 but without line in front of posterior coxal plate. Abdominal segments 

 smooth, shining at middle, slightly roughened at sides, laterally each 

 with a transverse row of setigerous punctures, the punctures fre- 

 quently close behind a very small tubercle, segments finely crenate in 



