4 PROCEEDIXGS OF THE XATIOXAL MUSEUM vol.80 



Eighth tergite of female Tvith four short bhmt lobes, the median 

 pair slightly longer, all separated by narrow triangular excisions, 

 lateral pair a little broader ; eighth sternite with four lobes, the me- 

 dian pair broadly rounded, separated by a semicircular notch, and 

 with four spinules on each, outer lobes shorter and more pointed and 

 each with two or three long setae, a rudimentary third pair of lobes 

 marked by a pair of long black setae on the lateral margins. 



Ty'pe locality. — Pennsylvania. 



Localities represented. — New Hampshire, Vermont, Massachusetts, 

 Connecticut, New York, Pennsylvania, New Jersey, Maryland. Dis- 

 trict of Columbia, Virginia, North Carolina, Georgia, Florida, Ken- 

 tucky, Tennessee, Louisiana, Ohio, Michigan, "Wisconsin, Minnesota, 

 South Dakota, Iowa, Nebraska, Missouri, Kansas, Texas, New 

 Mexico, Arizona, Nevada, California, Oregon, Washington, Ontario, 

 Manitoba. Also recorded from Indiana and West Virginia. 



Remarks. — The type of this species has undoubtedly been lost. The 

 Horn collection in the Academy of Natural Sciences of Philadelphia 

 contains specimens from Pennsylvania, Louisiana, Michigan, Fk)rida, 

 and Arkansas. The variability of this species has given rise to the 

 lengthy synonymy. The five specimens of E. flavidus in the Casey 

 collection are uniformly pale, but any large series of this species 

 contains similar immature specimens. No identified specimens of 

 ventncuhis have been found in the Casey collection. E. politus Manee 

 is represented in the collection of the writer by four specimens col- 

 lected at the type locality by Manee. I am not able to separate these 

 from a large series of ventriculus. The Horn collection contains a 

 specimen labeled ''''Erchomus politus Manee n. sp. Type." 



COPROPORUS RUTILUS (Erichson) 



1839. Tachinus rutiUts Ebichson, Genera et species staphylinorurn . . . , p. 253. 

 1855. Tachyporus brevis Sceiba, Ent. Zeit. Stettiu, vol. 16, p. 296. (Not Sharp, 



1876.) 

 1859. Coproporus rutilus (Erichson), Kbaatz, Archiv fiir Naturg., vol. 25, pt. 1. 



p. 59. 

 1883. Erchomus rutilus (Erichson), Sharp, Biologia Centrali-Americaua, Coleop- 



tera, vol. 1, pt. 2, p. 304. 

 1924. Cilea rutilus (Erichson), Wolcott, Insectae Portoricensis, p. 79. 



Ruf opiceous to piceotestaceous ; base of antennae, trophi, legs, and 

 often the pronotvmi testaceous. Head transverse, triangular in front, 

 not abruptly declivous; surface smooth and shining; gula wide but 

 narrowed at middle. Antennae shorter than the head and prothorax, 

 segments 8-10 transverse, eleventh broad and flat, as long as the two 

 preceding together. Fourth segment of maxillary palpi longer than 

 third, as large at base and evenly conical. Pronotum smooth, shin- 

 ing, impunctate. Mesosternum feebly carinate posteriorly. Elytra 



