June, 1921] Ff.lt: Xi:\v Species of Reared Gale Midges. 117 



with fuscous hairs. Ovipositor yellowish orange. Haltercs yellowish basally, 

 fuscous subapically, pale orange apically. Coxjc mostly dark brown, the legs 

 a somewhat variable fuscous straw. Ovipositor as long as the abdomen, the 

 terminal lobes rather slender, with a length four times the width and sparsely 

 setose. Type C. a 2985. 



The species described al)ove falls in our key next to R. bulbuhi 

 Felt and R. latcriflori Felt, from l)oth of which it is distinguished by 

 lial)its, colorational characters and variations in antennal and fjeni- 

 talial structure. The galls were collected by Mr. L. H. Weld at 

 Glencoe, 111., May 12. 1919. a few midges emerging on their reception 

 May 15. The galls occur on the subterranean stems or root stalks of 

 Aster macrophyllns, pushing up through the dead leaves in the spring 

 and when numerous preventing the development of the foliage. This 

 species appears to be somewhat badly parasitized, the parasites form- 

 ing a series of cocoons, usually consisting of two or three bundles 

 adherent at the ends; one mass contained as many as fifteen, though 

 the average numl)er is usually less. 



Walshomyia insignis new species. 



Gall. This is a somewhat yellowish leaf tip, hardly distinguishable from 

 the normal. The female escapes near the apex. 



Exuvium. Length 1.5 mm. Whitish with a distinct fuscous shade on the 

 wings, thorax and antennal cases. 



Female. Length 1.75 mm. Antennje extending to the second abdominal 

 segment, sparsely haired, reddish brown, the basal segments lighter, 14 sessile 

 segments, the fifth with a length 2^4 times its diameter and with moderately 

 high circumfila at the basal third and subapically and on the distal Yi. a series 

 of six or seven anastomosing transverse ridges, apparently chitinous and inde- 

 pendent of the circumfila ; the terminal segments consisting of two closely fused, 

 the apex obtuse. Palpus consisting of one short, irregular, coarsely setose seg- 

 ment. Mesonotum reddish brown, scutellum dark reddish, postscutcllum 

 orange reddish, abdomen sparsely haired, mostly deep red, the seventh and 

 eighth segments with a yellowish cast. Halteres fuscous orange, fuscous sub- 

 apically. CoxK fuscous yellowish, the legs mostly a fuscous straw. Claws 

 moderately slender, strongly curved, the pulvilli about twice the length of the 

 claws. Ovipositor short, stout, striate, the terminal lobes roundly oval and 

 thickly clothed with short, stout sct.x. Type A 2962. 



The peculiar female characterized above and tciUativcly referred 

 to this genus, was reared from an oval, apical hud gall on cedar, col- 

 lected bv Mr. I. M. Del Curto, .Austin. Texas. March j6. 1919. and 



