No. 2320. TRIBE AG0ENITINI—CU8HMAN AND BOHWER. 509 



finely granular, coriaceous basally, subpolished apically; first tergite 

 fully two-thirds as wide as long and barely a half longer than second; 

 hypopygidium slightly less than half as long as abdomen. 



Black with piceous reflections on head and abdomen; clypeus at 

 apex, supraclypeal spot on each side of face, scape and pedicel below 

 piceous; palpi fuscous; tegulae pale piceous; wing yellowish, veins 

 and stigma dark, latter whitish at base; legs testaceous, hind tibiae 

 and all tarsi more or less infuscate; tergites beyond third with mem- 

 braneous apical portion whitish. 



Type locality. — Whitefish Point, Michigan. 



Type.— C&t. Ino. 21193, U.S.N.M. 



One female collected by A. W. Andrews, July 26, 1914. 



COLEOCENTRUS HARRINGTONI Cushman, new name. 



Coleocmtrus canadensis Harrington, Can. Ent., vol. 25, 1892, p. 29, female. 

 [Not (Acoenites) Coleocentrus canadensis (Provancher) 1880]. Type.— Coll. 

 Harrington, Ottawa, Canada. Good condition. 



Discussion based on notes from type by Mr. Rohwer and two other 

 females. 



The specific name canadensis is preoccupied in Coleocentrus by 

 canadensis Provancher, described in Acoenites and here synonymized 

 with. flavipes Provancher. Two females in the United States National 

 Museum agree with Harrington's description and, according to Mr. 

 Rohwer, who has seen the type, are Harrmgton's species. 



Very similar in general form and color to niger Cushman, but larger 

 and with an areolet; face punctured, barely haK as long as wide; 

 temples broad, scarcely sloping; lateral ocelli scarcely more than half 

 as wide as ocellocular line; thorax more strongly sculptured; propo- 

 deum relatively longer, all carinae prominent, spiracle long oval; 

 fii-st tergite nearly twice as long as wide; ovipositor nearly as long 

 as body. 



The two specimens are 25 and 22 mm. long, with the ovipositor 

 about 4 mm. shorter. 



This species is closely allied to the genotype, Coleocentrus excitator 

 Gravenhorst, which, however, has the apical carina of the propodeum 

 incomplete medially and the coxae black. 



Neither of the United States National Museum specimens is labeled. 



COLEOCE»JTRUS OCCIDENTALIS Cresson. 



Coleocentrus occidentalis Cresson, Proc. Acad. Nat. Sci. Phila., 1878, p. 376, 

 female. Type. — Acad. Nat. Sci. Phila., No. 1431. 



Discussion based on type, homotype, four other females, and eight 

 males. 



In general form and structure much like Jiarringtoni Cushman and 

 differing prmcipally in color. Compared with Jiarringtoni differs as 

 follows: Face two-thirds as long as wide; ocelli larger, diameter of 

 lateral ocellus two-thirds as long as ocellocular line; black with the 



