REVISION OF THE GENUS COPROPOEUS — BLACKWELDER Q 



coarsely punctate tliroughoiit, reticulate. Eighth tergite of male with 

 four blunt lobes, the outer pair twice as long as the inner but not 

 extending as far posteriorly, separated from the inner pair by deep 

 incisures and each bearing a long black seta, the inner pair separated 

 by a very short notch and each bearing a short pale seta; eighth 

 sternite with a large notch, nearly semicircular owing to obliteration 

 of the apical angle, a little wider than deep. Eighth tergite of 

 female Avith six lobes, the outer one-half as long as the intermediate, 

 each bearing a short pale seta, incisures all narrow and deep ; eighth 

 sternite with six blunt lobes, the median each bearing two curved 

 spinules, the lateral four each with a long black seta. 



Tijpe locality. — Cave Creek, Chiricahua Mountains, Ariz, 

 Typef^. — Holotype (a female from Chiricahua Mountains, Ariz., 

 24.5 (May 24, 1897), collection of Hubbard and Schwarz), and 31 

 paratypes, U.S.N.M. no. 51078; four paratypes in the collection of 

 the writer; paratypes from same locality and also Santa Rita Moun- 

 tains and Catalina Mountains, Ariz. 



Remarks. — Thirty-six specimens of this species were segregated in 

 the Hubbard and Schwarz collection as '"''Ercho'nius n. sp." One speci- 

 men also bears the label '■''ErcJiomus convex\is Lee." in Schwarz's 

 handwriting. This is probably a mistake for convexus Erichson, but 

 that species is quite distinct. One specimen from west of Beaver, 

 Devils River, Tex., and one from Cordova, Veracruz, Mexico, are 

 doubtfully referred to this species. They are paler and larger but 

 do not seem to differ structurally. 



COPROPORUS INFIMUS (Duval) 



1857. Tachinus infimuH J. DuVal in Sagra's Historia fisica, politica y natural 



de la isla de Cuba, Coleoptera, p. 33. 

 38G3. Coproporus infimus (DuVal), Cheveolat and Fauvel, Ann. Soc. Ent. 



France, ser. 4, vol. 3, p. 430. 

 1920. Erchomiis infimus (DuVal), Leng, Catalog of the Coleoptera of America, 



north of Mexico, p. 111. 



Piceous to piceotestaceous ; antennae, trophi, legs, and apex of 

 elytra paler. Head transverse, abruptly narrowed in front of the 

 eyes but produced into a broad clypeal lobe between the antennae; 

 shining, exceedingly minutely punctate; gula broader at base than 

 apex but narrowed at anterior third ; head beneath coarsely strigulose. 

 Antennae about as long as head and prothorax, segments 7-10 trans- 

 verse, eleventh about equal to ninth and tenth together. Pronotum 

 smooth, shining, exceedingly minutely and sparsely punctured. Meso- 

 sternum feebly carinate posteriorly. Elytra smooth, shining, irides- 

 cent, very minutely and sparsely punctured similarly to the prono- 

 tum ; sides explanate to form a broad marginal concavity extending 

 throughout the length ; epipleurae broad, free, and nearly horizontal, 



