MONOGRAril OF TRE NOUTII AMERICAN PKUCTUTKYPID.E. 177 



fiUNious spots iit base of second sej;ment, Imt toward the lateral corners. 

 Head very Avid«; and thick antero-posteriorly. Eyes largo, rounded, 

 coarsely fsweted. Antennae 7-jointed, the club very birge,inarticulated, 

 and longer than tlie pedicel and funicle together; first funiclar Joint 

 scarcely longer than thick, the other three exceedingly short, transverse. 

 Thorax entirely without trace of furrows. Wings entirely wanting. 

 Abdomen oval, not h)nger than the head and thorax together, faintly, 

 microscopically i)unctate and shining; the first segment with a horn- 

 like prominence, striated posteriorly; the second segment is a little 

 longer than the first; the third, as long as the first and second together; 

 the following s«'gments short. 



Habitat. — Washington, 1). C. 



Type in Coll. Ashmead. 



Described from 3 specimens, taken by Mr. Vj. A. Schwarz and myself. 

 This wingless species, but for the hornlike structure at base of ab- 

 domen, could easily be mistaken for an J olus. 



Eiit. AI:iy.. 1. !». 270 9. 



HiiperbaiiH Forsti-r Ilyiii. Stml.. ii. p. U4, 1)S5<». 

 TrwhmiiiH Prov. A«l»l. ot Corr.. ]). 209, 1KS7. 



Head very large, transverse, about twice as wide as the thorax, the 

 frons broad, convex; ocelli 3, triangularly arranged but widely sepa- 

 rated, the lateral being close to the margin of the eye; eyes very large, 

 oval. 



Antenna' inserted dose to the clypeus; in 2 7-.jointed, davate, the 

 club largo, inarticulate; in i 12-.jointed, subclavate, the funiclar joints 

 after the second scarcely longer than wide, very slightly widened toward 

 tii)S. 



Maxillary palpi L*-.jointod. 



Thorax scarcely as long as wide, the i>rt»notum not visible from above, 

 the scutollum in 9 notdifierontiatod, while the metathorax is extremely 

 short; in the S the scutcillum is distinct, semicircular, subconvex. 



Wings in the i with a distinct basal nervure, a short nnirginal, a 

 long knobbed stigmal nervure and no post marginal; the ? always 

 apterous. 



Abdomen in 9 oval, sessile, convex alK>ve, fiat beneath, the third 

 segment occupying nearly the whoh' surface, the first and second seg- 

 ments being visible oidy as transverse lines or wrinkles; in i smaller, 

 rounded and more fiattened, the first and second segments very short, 

 transverse, the third the largest segment. 



Legs rather long, the femora clavate, the tibial spurs weak, the tarsi 

 5-iointed, the hind tarsi not longer than thei- femora, the basal joint 

 being one-third longer than the second. 



The absence of a scut*!llum readily distinguishes the females of this 

 (jenus. The male was unknown to llaliday and Forster and is here 

 21899— ifo. 45 12 



