424 PROCEEDESTGS OF THE NATIONAL MUSEUM vol. i04 



Season: April 28 to September 17. 



Remarks: I have been unable to separate American specimens 

 determined aegialioides from the European laevipennis. Psammodius 

 aegialioides Haldeman was described in 1848 from "Middle States," 

 which probably meant Maryland or Pennsylvania at that early date. 

 George H. Horn in his "Monograph of the Aphodiini Inhabiting 

 the United States" (Trans. Amer. Ent. Soc, vol. 14, 1887) gave the 

 distribution "from New York southward to Georgia, but seems rare." 

 Early specimens in the Horn and LeConte collections are labeled 

 merely with pink circles indicating "middle states." A single specimen 

 in the Horn collection is labeled "N. Y." I have seen no recent fully 

 labeled specimens to confirm the wide distribution listed by Dr. Horn. 

 The oldest Indiana specimen was collected in 1934. 



Psamtnodiiis culminatus Bates 



Psammodius culminatus Bates, Coleoptera, in Godman and Salvin, Biologia 



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

 Psammobius culminatus Schmidt, Coleoptera, Aphodiinae. Das Tierreich 



(Deutsche Zool. Ges.), pt. 45, p. 481, 1922. 



Oblong oval, very slightly wider behind, compa'-atively dull, only 

 weakly shining, piceous. Antennae rufotestaceous. Head convex, 

 closely, moderately verrucose; occiput smooth with a few fine punc- 

 tures above the eye. Clypeus quite deeply, broadly, triangularly 

 emarginate, the limiting angles rounded each side, sides arcuate, 

 weakly reflexed; genae fimbriate, small and broadly rounded. Pro- 

 notum slightly narrower in front, width 1.30 mm., length 0.9 mm., 

 anterior angles obtuse, posterior angles broadly rounded, sides and 

 base crenate, fimbriate with moderate, obtuse setae, base margined; 

 surface with very close, coarse punctures arranged in four, more or less 

 distinct transverse fm-rows, the first, second and fourth one or two 

 punctures wide, the third much wider, three or four punctures wide, 

 the punctures close but separate and distinct except in the anterior 

 angles and in the depressed basal half of the median line where they 

 become confused, surface between the discal furrows uneven with 

 confused, very fine, shallow punctures and alutaceous sculpture, later- 

 ally the coarse punctures become elongate and over the convexity 

 beyond the lateral fovea appear as short arcuate lines, basally they run 

 together leaving the intervening surface in rows of tubercles. Elytra 

 as wide as pronotum at base, width 1.5 mm., length 2.0 mm., base 

 margined, humeri strongly dentate, sides w^eakly arcuate, not fimbri- 

 ate; striae sharply defined, moderately deep, strial punctures moderate 

 and deep, intervals somewhat carinately convex, strongly alutaceous, 

 with a median row of fine, indistinct, shallow punctures causing slight 

 unevenness over discal intervals to distinct breaks and a vaguely 

 tuberculate appearance of the lateral intervals, each interval weakly 

 crenate on outer edge, strongly crenated along the inner edge by a row 



