722 NEW NORTH AMERICAN COLEOPTER A- LINELL. vol. xviii. 



at middle. Abdomen nearly smootb, witli a few coarse punctures at tli^ 

 sides, the last segments with strongly crenate basal margin. Femora 

 equally incrassate, smooth. Anterior tibise strongly tridentate; i)os- 

 terior moderately stout, expanded at tip, with three rows of small 

 asperate tubercles but no oblique ridges. The posterior tarsi nearly 

 as long as the tibia; the joints decreasing in thickness; the first one. 

 hardly wider toward apex, angular but not compressed, slightly arcu- 

 ate, fully as long as the three following together which are subequal in 

 length, a little longer than thick, constricted at base; last joint at? long 

 as third and fourth together. 



Length, o.G mm. Seven examples from Jacksonville, Florida (col- 

 lected by Mr. William H. Ashmead), are in the collection of Hubbard 

 and Schwarz, two of which these gentlemen have presented to the 

 National Museum. 



Types.— Bo. 551), U.S.X.M. 



This species has more strictly the generic characters of Pleurophoriis 

 in the hind tarsi, but must be placed near Psammodius bidens, Horn, 

 as the nearest ally in our fauna, it luis the same shape as this si>ecies, 

 but is slightly larger and lighter in color. 



APHODIUS COQUILLETTI, new species. 



Shining ferruginous, witli lateral and basal margin of thorax aiid 

 elytral suture narrowly black ; tibiae and base of tarsi infuscate. Hea.l 

 convex, finely punctate, without tubercles or clypeal ridge. Clypeus 

 slightly rugose, concave at middle; margin broadly emarginate, with 

 a strong acute tooth each side; sides irregularly arcuate, strongly 

 fimbriate; geu.e prominent, subangulate. Thorax with the sides 

 fimbriate, broadly exidanate, foveate near the obtuse hind angles; 

 base distinctly margined, arcuate at middle, emarginate each side at 

 the angles; disk convex, finely, not very densely, punctate; explanate 

 glides coarsely, rugosely punctate. Elytra glabrous, fimbriate at mar- 

 gin; humeri obtuse; striie fine, vaguely punctate; intervals minutely 

 rugose, with coarse, irregularly biseriate punctures. Ventral surface 

 finely pubescent, sparsely punctate. Anterior tibia' smooth in front, 

 very strongly tridentate, not crenulate above; spur slender, curvate; 

 first tarsal joint very short. Posterior femora sparsely punctate; 

 tibite with une(]ual spinules, the first tarsal joint not longer than the 

 two following together. 



This species belongs to Group I of Dr. Horn and resembles A. mili- 

 tarise LeConte, but is larger and has the sides of thorax distinctly 

 explanate and the posterior angles are distinct, although obtuse. It 

 differs from A. rudis, LeOonte, in having distinct basal margin of 

 thorax and different punctuation. 



Length, G.5 mm. One example, Los Angeles, California, collected by 

 Mr. D. W. (^oquillett. 



Txjpe.—Bo. 500, U.S.N.M. 



