234 ENTOMOLOGICAL SOCIETY 



The paper was briefly discussed by Dr. Gill, who stated that 

 he was glad to see that the author was not afraid to erect a sub 

 family for a single genus. So many systematists seem to be in 

 fluenced in their erection of higher groups quite as much by the 

 number of forms as by morphological significance. 



Mr. Marlatt read the following paper : 



THE AMERICAN SPECIES OF SCOLIONEURA KNW. 

 By C. L. MARLATT. 



The genus Scolioneura belongs to the subfamily Blenno- 

 campinse and was separated by Konow from the genus Blenno- 

 campa on what appear to be valid grounds. The important 

 characters separating the genus Scolioneura from Blennocampa 

 are, the curved basal vein which converges with the first re 

 current, and the broad inner tooth which projects from near the 

 base of the claw. In Blennocampa the basal vein is straight 

 and parallel with the first recurrent, and the claws are bifid or 

 nearly so, the inner tooth being large and almost as long as the 

 outer. In the Tenthredinid material now in my possession I find 

 two species which may be properly assigned to Scolioneura, and 

 of the described American species of Blennocampa B. capita/is 

 Norton may also be so referred. The following characterization 

 of the genus is given by Konow : * 



Body small, ovate, compound eyes reaching base of mandibles, antennae 

 rather slender, filiform, basal nerve of upper wings curved, not parallel 

 with first recurrent vein, transverse radial often not interstitial, posterior 

 lower angle of third cubital cell acute, discal cells of lower wings wanting, 

 inner tooth of claw near base and broad. 



Scolioneura capitalis Norton. 



Female. Length 4 mm. Soft, delicate species ; clypeus broadly, squarely 

 truncate; vertex smooth, shining, sutures indistinct. Antennas filiform 

 or very slightly thickening towards tip, 3d and 4th joints subequal ; basal 

 vein strongly converging with ist recurrent, distinctly bent near origin; 

 ist cubital cross-vein wanting, or indicated by a minute stump on cubital 

 vein; stigma broad, rounded; hind wings without discal cells or border 

 ing veins; claws with broad but short basal inner tooth; sheaths pro 

 jecting, narrow, obliquely truncate at tip; color light honey-yellow; 

 antennae, except two basal joints, head, epimerae and more or less of tip 

 of abdomen, brown ; wings hyaline ; veins yellowish-brown. 



Redescribed from one specimen collected in New York (Nor 

 ton's type).. Type in collection Amer. Ent. Soc., Philadelphia. 



* Deutsche Ent. Zeits., 1890, p. 239. 



