116 Journal New York Entomological Society, ["^'o'- xxix. 



This insect occurs in a purplish, somewhat conical, thick walled, 

 apical bud gall with a length of about i cm. and a diameter of 3 mm. 

 When mature the tip splits, forming four or more irregular lobes, the 

 adult escaping from the apex. This gall develops later than that of 

 Walshomyia texana according to J. T. Patterson of the University of 

 Texas. This species has been reared from Jiuupcrus nionospcrmum 

 from galls collected near Denver, Colo., in 1914, by Professor E. 

 Bethel and from similar galls on Jnnipcnis utahcnsis collected by 

 Professor Bethel at Gilluly. Utah, and also from apparently identical 

 galls on Sabina sahinoidcs collected by J. T. Patterson in April, 1919, 

 near Austin, Texas. The gall has been figured by ]\Ir. Patterson on 

 page 345 of the November, 1919, issue of the Journal of Heredity, 

 volume 10. 



Rhopalomyia weldi new species. 



Gall. Dark purplish, fusiform, frequently clustered bud galls with a length 

 about I cm. and a diameter of .5 cm. Clusters of six or seven are not unusual 

 though occasionally only three or four, or one or two may develop upon a 

 shoot. One small shoot bore eleven galls. 



Larva. No larva were found though Mr. Weld stated that they were 

 orange colored. 



Pupa. Length 4 mm. Antennal cases fuscous yellowish, eye, wing and 

 leg cases black, mesonotum yellowish orange, abdomen reddish orange with 

 rather thick fuscous hairs on the dorsal sclerites. 



Male. Length 4 mm. Antennae nearly as long as the body, sparsely haired, 

 18 segments, the fifth with a stem three fourths the length of the basal enlarge- 

 ment, which latter has a length one and three fourths times its diameter. 

 Terminal segment with a narrowly fusiform, pseudo-articulate apex as long as 

 the basal enlargement, the latter with a length nearly three times its diameter. 

 Palpus consisting of one small, narrowly oval segment. Mesonotum shining 

 dark brown. Scutellum and postscutellum dark brown. Abdomen fuscous 

 yellowish. Genitalia fuscous. Halteres fuscous apically, yellowish basally, 

 legs a nearly tiniform fuscous straw. Claws long, slender, rather strongly 

 curved apically, the pulvilli nearly as long as the claws. Genitalia, basal clasp 

 segment long, stout, terminal clasp segment short, stout, subfusiform ; dorsal 

 plate deeply and triangularly emarginate, the lobes obliquely truncate, ventral 

 plate broad, broadly rounded apically. 



Female. Length 3 mm. Antennae about three fourths the length of the 

 body, sparsely haired, fuscous yellowish, 18 or ig sessile segments, the fifth 

 with a length 2}^ times its diameter, the terminal segment produced, with a 

 length over three times its diameter. Mesonotum shining dark brown. Scu- 

 tellum and postscutellum a little darker, abdomen deep red, sparsely clothed 



