PARASITIC HYMENOPTERA. 183 



$«OL.KNA$iriS A.shinead. 

 Solenaspis siiigiilariN sj). n. 



9 . — Length 2.'y mm. Black ; anteniiiP, except scape, light brown, the terminal 

 joint dusky : trochanters, knees, anterior and middle tihise and their tarsi, honey- 

 yellow. The head in front is roughly shagreened, ))ehiiid on occii)Ut transversely 

 rugulose; pronotum above and at sides longitudinally striated: nieso|)leura 

 shagreened. superiorly smoother and delicately striated ; mesonotum smooth, 

 highly polished, with two deep, crenated parapsidal furrows; scutellum coai-sely 

 rugose, with two large deep fovese at base and produced into a long spine at apex ; 

 metathorax coarely rugose; antenuaj 13-jointed, long, extending to middle of 

 abdomen, thickened at tips, the terminal .joint being oblong, much thicker than 

 the i)receding and the longest joint ; the fii-st joint of flagellum is only two-thirds 

 as long as the second, the following joints very gradually thickening and also 

 gradually shortening. Wings hyaline, finely pubescent, the veins piceous or 

 black, the outer vein of the areolet perpendicular and rather long, the cubitus 

 visible as a delicate brownish streak. Abdomen not longer than the thorax, the 

 petiole short, transverse, with several raised lines. 



The % agrees well with the 9- except the antennaj are 14-jointed, filiform, 

 longer than the body, the tlagellum brown, dusky towards tip, the joints long, 

 cylindrical, the first shorter than the second, not quite five times as long as thick, 

 while the outer transverse cubital nervure is much shorter than in the 9 • 



Hab. — Algonquin, 111. 



Described from one 9 :iii<l ^ve % specimens received from Dr. 

 Wm. A. Nason. 



Suhfaniily If. ONYCHllNiE. 



.4!!»I>IC'EKA Dahlbom. 

 A!>i|»icera utiilieiisiM sp. n. 



9- — Length 3.1 mm. Black, pubescent; fiagellum and legs rufous; mesopleura 

 polished; first joint of flagellum distinctly longer than the second; .scutellum 

 rugose, with some raised lines and terminating in a spine; surface of thorax 

 feebly shagreened. the usually carinse present, but the surface between not re" 

 ticulated from irregular niised lines; tegulai black. Wings liyaline, the veins 

 light brownish. 



if« 6.— Salt Lake, Utah. 



Described from one 9 taken by Mr. E. A. Schwarz. 



This species is allied to A. albihirta Ashm., but is readily .sepa- 

 rated from it and other .-species by it,*: smoother surface, and the rela- 

 tive length of the fir.<<t and second flagellar joints. * 



Subfamily III. Axacharin^. 



XYL.ASPIS Hartig. 

 Xylaspix flavipes sp. n. 



'J,. — Length 2.3 mm. Black; antcnnie, excej)! scape at base, light brown: 

 mandibles, i>alpi and legs, except the hind coxje, yellow, the anterior and middle 

 coxai more or less dusky at base; first joint <)f fiagellum about one-half longer 

 than the second. Head smooth, ])olishod ; thorax finely rugulose, the collar at 



TKANS. AM. ENT. .SOC. XXIII. .Jf.VK. 1896. 



