96 C. p. GILLETTE. 



Till?; ?})ecies resembles S. levixfentrk quite closely, but is easily sepa- 

 rated from that s]:)ecies by the larger size and the different sculpturing 

 of the mesonotum as indicated in the synopsis of species. 



Synergiis atripes u. sp. 



Female. — Black, with anteuufe. lower face, gense, tegulse and portions of ante- 

 rior and middle femora and tibise rufous or deep smoky, face above antennse and 

 vertex minutely rugulose and rather thickly set with broad shallow punctures, 

 antennse short, hardly reaching to middle of second abdomir.al segment, third 

 joint nearly twice the fourth, joints 4 to 14 all subequal, not at all clavate. Tho- 

 rax with mesonotum rather coarsely transversely wrinkled, parapsides rather 

 indistinct; scutellum coarsely rugose, fovese obliterated, mesopleurse entirely 

 aciculated. Abdomen black, without punctures, or with a few feeble ones near 

 the posterior margin only, second segment produced dorsally, making it pointed 

 and sublanceolate when viewed from the side, segments back of the second and 

 the ovipositor sheaths entirely covered, the ventral valve slightly protruding ; 

 marginal cell of wing short and triangular, areolet small and nearly obsolete. 

 Length 2-3 mm. 



Males differ in having antennae 15-joiuted, and in being from 2-2.5 mm. long. 



Described from ten females and six males bred from the galls of 

 Holcaspis brevipennata Gill, that were taken at ]\Ianitou, Colo. 



Synergus mcxicana u. sp. 



Female. — Head, except tips of mandibles and vertex, yellowish; mesonotum 

 yellow, abdomen black, antennse yellow, legs yellowish beneath, blackish above ; 

 metauotum densely and coarsely transversely wrinkled ; scutellum coarsely and 

 irregularly wrinkled with fovete almost obsolete; mesopleur* entirely striated 

 and opaque, abdomen dee]) shining black without punctures on posterior half of 

 second segment; second segment rounded off, not pointed posteriorly. The an- 

 tennie are 14-jointed, and the third joint about equals the fourth and fifth together 

 in length. 



Described from a single female sent me by Mr. T. D. A. Cockerell, 

 of Las Cruces, New Mex. 



This species comes most nearly to S. batatoides Ash. 



SyinTguj* coiiiferse Ash. 



Si/iiertins couiferte Ash., Trans. Am. Ent. Soc. xii. 1885, p. 301. 9 S • 

 Synergus comferw Cresson. Syn. Am. Hymen. 1887, p. 180. 

 Synergus coniferx De Dalla Torre, Cat. Hymen, ii, 1893, p. 110. 

 " Length .10 inch. Reddish brown, j)unctate and finely i)ubescent, the pubes- 

 cence being quite thick on the face : antennse 14-jointed. reaching to the base of 

 the abdomen ; thorax transversely wrinkled with parapsides distinct ; alxlomen 

 at base testaceous; posterior femora and intermediate and posterior tibiaj along 

 upper edges brown ; wings hyaline, veins pale." 



The peculiar sculpturing of this species readily separates it from 

 any other described species (see synopsis). 



