20 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 58. 



others pale testaceous or stramineous (the hind tarsi are broken off 

 but undoubtedly have the same pattern with the annuli darker) ; 

 tegulae and wing bases, scape and pedicel beneath (flagella wanting), 

 mandibles and palpi white. 



Type locality. — Unknown. 



Type.— C&t. No. 20060. U.S.N.M. 



A single female labeled "June 11, 1885, through C. V. Riley, 1888." 



COLPOMERU KINCAIDH (Ashmead). 



Zaglyvtus kincaidii Ashmead, Ins. Life, vol. 6, 1894, p. 260, female, male. T^jpe. — 

 Cat. No. 20061, U.S.N.M. 



Discussion based on type, allotype, and two other females. Ex- 

 cept in the characters given in the key this species is hardly distin- 

 guishable from mellithorax Cushman, described above, and it is 

 possible that the two will, with more material for study, be found con- 

 specific. In one specimen is shown a distinct tendency toAvard red 

 in the thorax, this color including the mesosternum and a large part 

 of the mesopleura, while the pronotum is distinctly reddish piceous. 

 In the type and one of the other females the petiolar and lateral areas 

 are only partially separated by carinae, while in the allotype and the 

 other female the carinae are rather strongly complete. The females 

 vary in length from 4.5 mm. (type) to slightly over 5 mm. 



The types are from Olympia, Washington, where they were reared 

 from a spider, Tetragnathus species, while the other two females are 

 from Mount Washington, New Hampshire 



Genus POLYSPHINCTA Gravenhorst. 



In general form and structure this genus stands between Colpo- 

 meria Holmgren and Zahrachypus, new genus. It lacks the prescutal 

 cristulae and, in the female, the femora, while usually considerable 

 swollen, are not angularly incrassate as in Colpomeria. The head is 

 somewhat more transverse and less regularly oval than in Colpo- 

 meria; malar space distinctly, usually much, shorter than basal width 

 of mandible; propodeum not longer than high, usually shorter, ar- 

 cuately declivous above, usually with at least the median carinae, 

 frequently with two median areas, rarely without carinae; first ter- 

 gite much more than half as wide as long, freciuently as wide as long, 

 its sides widely, arcuately divergent; other tergites with elevations 

 or furrows distinct; ovipositor straight and at least nearly as long as 

 first tergite, frequently much longer; mediella less strongly curved 

 before the nervellus, which is either broken or unbroken and perpen- 

 dicular or less strongly inclivous. 



Although the extreme types of the two subgenera are very distinct 

 the intermediate variation is rather gradual, and the characters em- 

 ployed in the following key, although stated positively, are really 

 essentially comparative. 



