116 FAMILY EVANim^. 



very irridescent, but ofteu with a strong and beautiful violaceous reflection ; 

 nervures and stigma black. Legs black; four anterior knees externally, and 

 sometimes ring at base of posterior tarsi white ; posterior cosfe transverse- 

 wrinkled, tending to reticulate beneath. Abdomen with luxuriant satiny lus- 

 tre; petiole black, followiug three or four segments ferruginous or rufo-ferrugin- 

 ous; apex black. Length 14 mm. 



% . — Similar to female ; second segment of flagellum more than half the length 

 of the third. 



This largest and most beautiful of our native species shows no 

 variation, other than as mentioned, in the series of 12 females and 

 males before me. 



Hab. — Nevada, Washington, Colorado, California (Dunsmuir, 

 H. F. Wickham). 



Types. — In collection of American Entomological Society: 



Fceniis rubrofasciatus KiefTer. 

 1904. Gasteruption riibrofasciatum Kieflfer, Invert, pac , i, p. 42. 



% . — Black, mandibles, apex of second and third and trace at apex of fourth 

 and fifth abdominal segments red ; anterior legs including coxae reddish-yellow, 

 femora in the middle and tibije at apex browner, middle legs brown, coxfe and 

 trochanters black, base of tibige white; posterior coxa- and trochanters black, 

 base of femora pale reddish, ring near base of tibige white, othei wise brown. 



Head opaque, minutely transversely striated ; inner margins of compound eyes 

 slightly converging below; malar space almost obsolete; posteiior ocelli n<arer 

 to the compound eyes than to each other; head narrowed behind the eyes, the 

 posterior margin truncate, slightly concave, slightly rimmed ; antennae sliort, the 

 second and third segments subequal, together shorter than the fourth; fourth 

 longer than the fifth. 



Neck short, reticulated, pronotum with a short tooth; medial mesonotal lobe 

 transversely rugose-wrinkled, parapsides irregularly rugose, posterior part of 

 mesonotum more coarsely transverse-wrinkled ; scutellum transverse-wrinkled ; 

 mesopleuise above shagreened, below together with the propodeum reticulate; 

 posterior coxae minutely transverse-striate. Petiole shoiter than the second seg- 

 ment. Length 12 mm. 



Hub.— ^autii Clara County, California, C. F. Baker. A second 

 specimen received from Mr. Baker under this name from Nevada 

 seems to represent an undescribed species. 



F«ciiii(i» !<»e|>tentrioiiaIis Schlett. 

 1889. Gasteruption septentrional e Schlett.. f, Ann. d. k. k. Xath. Ilofm. Wien, 

 iv, p. 480. 

 9 . — "L. 10 mm. Caput opacum, post ocellos tenuissime transverso-striolatum ; 

 capitis pars occipitalis mediocriter longa et obconica, margine postico acuto. 

 Gcnte brevissimae. Flagelli articulus secundus quam primus evidenter sesqui 

 longior, tertius secundo longior, quam secundus unacuin ))rimo brevior. 

 Collum breve. Mesonotum ante suturam crenulatam tenuiter transverso- 



