220 EDWARD NORTON. 



46. N. mendicus. 



NematuH mendicus, Walsh, Proc. Ent. Soc. Phil, vi, 1S66, 261, 9 % . 



Length $ 0.22— .24, % 0.18 inch. Br. wing 9 0.23— 

 .25, % 0.19 inch. 



" 9 • I'ale grass-green. Head rufous around the ocelli, sometimes 

 tinged with rufous throughout. Eyes, ocelli, a dot behind, and gene- 

 rally one at each end of a transverse carina half way between the ante- 

 rior ocellus and the antennae, sometimes a dot outside of each antennae 

 and always the tips of the mandibles, black. Clypeus emarginate in a 

 circular arc of 90° — 120°. Antennas slender, as long as body, joints 

 8 — 5 subequal, 4th sometimes a trifle longer than either ; the scape 

 black, with joint 2 sometimes pale rufous below, the flagellum brown- 

 black, generally dull rufous or reddish-brown above, except toward the 

 base, and always bright rufous beneath, except at extreme base. Tho- 

 rax tinged with rufous, especially above; a coarse longitudinal line on 

 the disk of each lateral lobe, sometimes with a dot inside its posterior 

 end, and sometimes a slenderer longitudinal line on the front of the 

 anterior lobe, a band near the tip of the scutel, a pair of transverse 

 dots in the hollow behind it, an abbreviated band on the succeeding 

 carina, generally in the hollow between the carina and the basal plate 

 an abbreviated transverse line, and sometimes the edges of the basal 

 plate bordering the basal membrane, all black. Abdojiien sometimes 

 tinged with rufous; segment 1 sometimes with the edge bordering the 

 basal membrane and an obscure dot on its dorsal tip black. Oviposi- 

 tor eheaths tipped with fuscous. Legs greenish-white; tip of hinder 

 tibiae and all the tarsi more or less fuscous. Wings hyaline, veins 

 black; costa and stigma pale green. 



% . Differs from the normal 9 only as follows : The body is slenderer 

 in proportion than usual, general color whitish. A quadrate black spot 

 encloses the ocelli, includes the dot on the occiput and the two behind 

 the antennas. The antennae are one-fourth longer than body, the scape 

 black, the first j(jint basally green, the flagellum rufous above, bright 

 rufous beneath. The entire meso- and metathorax is black. On the 

 tergum the basal i — :, of segments 1 — 6, nearly the whole of 7, and a 

 dorsal line on 8 are all superiorly black ; lateral plates all whitish ; ba- 

 sal membrane whitish." 



Rock Island, 111. 



One 9 5 three 9 > Tnquilinous. "One 9 bred from the Tenthredi- 

 nidous gall aS'. pomtim of the preceding year's growth, May 2d. An- 

 other 9 from the Cecidomyidous gall *S'. IjrassiroHff.s, Walsh, August 

 5th, of the same year's growth. In this the transverse carina behind 



