1838.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. G45 



Subfamily BLACINiE. 



GANYCHORUS Haliday. 

 Ganychorus atricomis u. sp. 



Male and female. — Length, 2| to 3 n,m ; ovipositor, 1""". Black, poh 

 ished ; palpi and legs, honey-yellow; posterior tibiae above and tarsi, 

 dusky; mandibles black ; antennae 23 jointed in male, 24 jointed in fe- 

 male ; the basal joints of the flagelluni are about four times as long as 

 wide; mesothoracic parapsidal grooves deep, punctulate at bottom; 

 mesopleura smooth; ruetathorax minutely rugose ; abdomen oval, de- 

 pressed, the 1st segment sculptured and with two keels basally, the 

 following segments smooth, polished. Wings hyaline, iridescent; the 

 stigma, parastigma, and most of the costie black; other veins yel- 

 lowish ; the transverse median nervure is almost interstitial with the 

 basal nervure ; the recurrent nervure joins the 1st submarginal cell be- 

 tween the middle and its apex, while the 2d branch of the radius is 

 slightly curved at base. 



Habitat — San Mateo County, California. 



Described from three males and one female, labeled No. 147°, reared 

 in December, 1885, by Mr. Albert Koebele, from a Cynipid gall found 

 on Quercus Douglasii. 



Ganychorus orchesiae n. sp. 



Female. — Length, 2f mm ; ovipositor, 2J ,mi1 . Stature and color similar 

 to G. atricomis, only the antennae are 23-joiuted, brown; the mandibles 

 and palpi yellow ; the venter piceo-black ; the parapsidal grooves dis- 

 tinct but not deep ; the metathorax broader than long, minutely rugose 

 and rounded off posteriorly; the 1st abdominal segment longitudinally 

 aciculated ; the legs of a uniform reddish-yellow ; the costa? and stigma 

 are brown, while the veins are pale yellow. 



Habitat. — Grand Ledge, Michigan. 



Described from a single specimen, labeled No. 2465°, reared July 24, 

 1881, from Orchesia castanea, found in brown fungus along with Mete- 

 or us orchesice. 



(?) Ganychorus gelechiae n. sp. 



Female. — Length, 2f mw ; ovipositor, l mm . A small, elongated, mi- 

 nutely shagreened, opaque, yellow-ferruginous species; the stemniati- 

 cum black; the vertex of head, lobes of mesothorax, scutellum, post- 

 scutellum, and apical margins of metathorax dusky. The antennae are 

 more than 20 jointed (broken off at tips), about the length of the in- 

 sect ; the mesothoracic parapsidal grooves are distinct, and converge 

 and meet before attaining the base of the scutellum, the middle lobe 

 thus formed being triangular ; the metathorax is a little longer than 

 wide; abdomen long, ovate, as long as the head and thorax together, 

 delicately shagreened. Wings hyaline, narrowed ; the transverse me- 

 dian nervure is distinctly interstitial with the basal nervure; other- 



