REVISION OF THE GENUS COPROPORUS — ^BLACKWELDER 5 



smooth, shining, sparsely but relatively coarsely punctured; with a 

 distinct longitudinal concavity at the middle of the side, not close 

 to the margin ; epipleurae free from inner face of elytra but inflexed 

 far above the horizontal. Abdomen feebly margined, generally very 

 much retracted ; sparsely and indistinctly punctate throughout, with 

 minute reticulations. Eighth tergite of male with four narrow lobes, 

 the median pair longer and separated by a shallow rounded incisure ; 

 eighth sternite with a broad triangular notch, the angles prolonged. 

 Eighth tergite of female with four slender lobes, the median pair a 

 little longer, the outer pair each with a long black seta ; eighth ster- 

 nite with four blunt lobes, the middle a little longer and with three 

 spinules at tip, the outer each with a long black seta. 



Type locality. — Originally cited from "Americae ins. Puerto Kico 

 et St. Thomae, in Columbia." 



Localities represented. — Texas (Brownsville, Victoria, Columbus, 

 Houston). 



Remarks. — This species is common throughout Central America, 

 northern South America, and the West Indies. It has not been pre- 

 viously recorded from the United States. Tachyporus hrevis Scriba 

 is included as a synonym on the authority of the Junk and Schenk- 

 ling catalog. 



COPROPORUS LECONTEI, new name 



1863. Coproporus punctipennis LeConte, Smithsonian Misc. Coll., vol. 6, no. 167, 



p. 31. (Not Kraatz, 1859.) 

 1877. Erchomus punctipennis (LeConte), Hoen, Trans. Amer. Ent. Soc, vol. 6, 



p. 107. 



Black; antennae, trophi, and legs rufotestaceous. Head trans- 

 verse, not abruptly declivous in front of the eyes ; above impunctate, 

 very minutely wrinkled, shining; beneath densely wrinkled; gula 

 moderately wide and narrowed at middle. Antennae about as long 

 as head and pronotum, feebly expanding distally but no segments 

 transverse, eleventh equal to ninth and tenth together; finely pubes- 

 cent from the fourth segment. Fourth segment of maxillary palpi 

 longer than third, a little narrower at base than third and feebly 

 conical. Pronotum minutely punctulate and very indistinctly and 

 irregularly strigulose. Mesosternum carinate, carina elevated into a 

 thin lamella nearly as high as long, abruptly terminated anteriorly. 

 Surface of elytra uneven, finely and sparsely punctate, very indis- 

 tinctly strigulose; sides without concavity except for a fine groove 

 just at the edge ; epipleurae free from inner face of elytra and nearly 

 horizontal. Abdomen distinctly margined; sparsely punctured and 

 strigulose above and beneath. Eighth tergite of male with four short 

 equal triangular lobes, the middle pair separated by a rounded exci- 

 sion, laterals somewhat anterior ; eighth sternite triangularly notched, 



