AMERICAX HYMENOPTERA, 93 



margins of the mesonotiim, a line along each parapsidal groove, the entire space 

 between the grooves posteriorly and the scutelluni rufous; the rest of the meso- 

 notuni black, fovese of the scutelluni weak, mesoi)k'ura> entirely aciculated, black. 

 Abdomen yellow, with a shining black blotch or dorsum, densely punctured on 

 posterior one-half of second segment ; this segment somewhat incised on dorsum, 

 exposing the following segments (in one example the third and following seg- 

 ments are retracted under the second and the ovii)ositor slieaths are left standing 

 out away from the alidominal segments), ovipositor sheaths attaining the dorsal 

 line. Feet light honey-yellow, except as mentioned above. Length 2.75-3.5 mm. 



Described from four females bred from the galls of Holcaspis 

 hrevipennata Gill, from ISIaiiitou, Colo. 



This species is separated from oneratm O. S., which it very closely 

 resembles by the finer sculpturing of the mesonotum, and in the ab- 

 sence of the short, coarse wrinkles margining the eyes just above 

 the anteume, which arc (juite pronounced in that species. 



Syiier;;iis diiricoria n. sp. 



Fciimh'. — Yellow, with tips of mandibles, a small spot on vertex, neck, pectus, 

 dorsum of metathorax, first and second abdominal segments, ovipositor sheaths, 

 a line on the upi)er side of hind tibia; and hind tarsi, black or blackish. Head : 

 face very sparsely and weakly pubescent, vertex and occiput very minutely rugu- 

 lose and with numerous broad shallow punctures; antennaj 14-jointed, very 

 nearly as long as the insect, third and fourth joints nearly equal, fifth and sixth 

 hardly shorter, the terminal joint nearly equal to the two preceding, flagollum 

 not at all clavate. Thorax very finely, evenly and densely rugose on mesonotum, 

 parapsides weak, but j)lainly visible throughout; scutellum with two distinct, but 

 rather shallow transverse fovete. Abdomen densely punctured at sides posteriorly. 

 seco7id segment deeply notclied on dorsum posteriorly, exposing the following 

 segments and the ovipositor sheaths. Wings hyaline, with main veins quite 

 black, areolet small and nearly obsolete. Length 4 mm. 



Described from a single female bred from the galls of Holcaspis 

 (hiricorla Bas.s. that were sent me by Mr. F. M. Jones, of Wilming- 

 ton, Del. 



Syn<>rgu!>i licigerjp Ash. 



Si/nergns ficiijerx Asli., Trans. Am. Ent. Soc. xii, 1885. p. 301. 9 % • 



Si/tierfius ficujerx Cresson, Syn. Am. Hymen. 1887, p. 180. 



Si/uergiis ficifierir Ue Dalla Torre, t'at. Hymen. 1893, p. 111. 

 "Length .08-. 14 inch. Head and thorax reddish brown, punctate, the i)unc- 

 tures coarser on thorax, slightly pubescent; antennpe 13-jointed in female, 15- 

 jointed in male, yellowish ; abdomen yellow, testaceous, with a large black blotch 

 on disc; legs yellow, posterior tibia' brown along the upper edge ; wings hyaline, 

 veins brown." 



I have two of Mr. Ashmead's types in my possession, both of 

 which are females, and both have, unmistakably, 14-jointed antennse. 

 The s[)ecies is clo.sely related to oiieratus, and plainly belongs tO the 

 14- and not to the 13-jointed group. 



TRAX.S. AM. ENT. SOC. XXIII. MARCH, 1896. 



