1888.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. G49 



flavo- testaceous; mandibles black at base and with black teeth. The 

 head is transverse; face pubescent and having a longitudinal grooved 

 line on the disk, extending from between the antenna;; there is also 

 a longitudinal grooved line, extending from the front ocellus between 

 the lateral ocelli back to the occiput. 



The male antennae are 21 -jointed, female 18-jointed, black, the scape 

 piceous, the 2d joint yellow ; the 1st joint of the flagellum is the longest, 

 the 2d and following joints about twice as long as wide. Thorax ovoid, 

 smooth, polished, without parapsidal grooves; posteriorly, just in front 

 of the scutellum, is a short longitudinal medial groove; the scutellum 

 has a deep transverse fovea at base with some raised lines at bottom ; 

 on the disk of the mesopleura is a long fovea, punctured at bottom ; 

 metathorax finely rugose ; the abdomen is as long as the head and 

 thorax together, subsessile, the 1st segment longitudinally striated. 



Wings hyaline, iridescent ; veins brown; the stigma is long, very 

 narrow, reachiug to the apex of the wing ; the recurrent nervure joins t he 

 2d submarginal cell near its base; the 1st submargiual cell is small, 

 hardly half the length of the 2d ; the subdiscoidal nervure springs from 

 the middle of the 2d discoidal cell. 



Habitat — Nyack, New York. 



Described from five specimens received February 10, 1885, from 

 Kev. J. L. Zabriskie. 



Subfamily DACNUSINiE. 



03xone Haliday. 

 GJnone Belfragei u. sp. 



Male and female. — Length, 3 to 3§ mm . Black, opaque, rugosely punc- 

 tate, covered with a sparse, white, sericeous pubescence; two basal 

 joints of antennae and legs flavo-testaceous. The head is transverse, 

 very short, about twice as wide as long vertically ; the eyes are oval and 

 extend to the base of the mandibles ; the clypeus projects much below 

 the lower line of the eye, and with the short head and the distended 

 mandibles gives the insect a very peculiar appearance. Antenna 31- 

 jointed in the male, 29 jointed in the female; the thorax is shorter than 

 the abdomen, with distinct parapsidal grooves, the middle lobe has a 

 punctured longitudinal groove down the center; metathorax areolated : 

 abdomen oval, the sculpture having a longitudinal direction, the 1st 

 segment being more distinctly striated; in the female it is \ -segmented, 

 iuthemale5-segmented,the terminal segments being very small. Wings 

 hyaline, iridescent; veins brown; the recurrent nervure joins the 1st 

 submarginal cell between the middle and the apex; the submedian cell 

 is slightly longer than the median. 



Ha b ita t. — Texas. 



Described from four specimens, two male and two female, in collection 

 Belfrage. 



