190 Journal New York Entomological Society. [^'°'- xxiv, 



Rhopalomyia ericameriae new species. 



This species was reared by Mr. P. H. Timberlake April 21, 1913, 

 from a small, rosette gall on Ericamcria (Chrysoma) palmeri, col- 

 lected in the Puente Hills near Whittier, Cal. The adults, aside from 

 food preferences and general structures, may be most easily separated 

 from related forms by the strongly marked characters of the male 

 genitalia and the unusually short ovipositor of the female. 



Gall. — This is a deformed or aborted, usually lateral branchlet forming a 

 small rosette, frequently with the tip more or less recurved, length 1.5 cm., 

 diameter i cm. 



Exuvium. — Length 2.5 mm., moderately stout, whitish, except for the 

 thicker portions of the chitin anteriorly. Antennal horns rudimentary, the 

 antennal cases not reaching to the base of the abdomen, the wing, cases to the 

 second abdominal segment and the leg cases to the fourth and fifth abdominal 

 segments ; the dorsum of the abdominal segments with very minute, chitinous 

 points ; posterior extremity broadly rounded. 



Male. — Length 3.25 mm. Antennas extending to the third abdominal seg- 

 ment, thickly haired, probably yellowish brown; 18 segments, the fifth with 

 a stem three-fourths the length of the cylindric basal enlargement, which 

 latter has a length about two and one-half times its diameter; terminal seg- 

 ment somewhat reduced, with a length over twice its diameter and tapering 

 to a narrowly rounded apex. Palp consisting of one long, somewhat capitate 

 segment with a length about three times its greatest diameter. Mesonotum 

 dark reddish brown. Scutellum reddish brown, postscutellum a little lighter. 

 Abdomen brownish red, the genitalia yellowish. Halteres yellowish basally, 

 fuscous apically. Legs mostly a pale straw. Genitalia; basal clasp segment 

 long, stout ; terminal clasp segment moderately long, slightly swollen near 

 the middle; dorsal plate long, broad, triangularly emarginate, the lobes some- 

 what divergent and broadly rounded ; ventral plate long, broad, broadly and 

 roundly emarginate. Harpes broad, obliquely truncate apically, the distal 

 margin somewhat recurv^ed ; style rather short, stout. 



Female. — Length 2.25 mm. Antennae missing. Palp consisting of one 

 moderately stout segment with a length nearly four times its diameter, the 

 distal fourth tapering. Mesonotum probably darker and the abdomen pre- 

 sumably redder than in the male. Ovipositor with a length about one-half 

 that of the abdomen, the terminal lobes broadly oval and sparsely setose. 

 Color characters largely conjectural. Type Cecid. 1637. 



Phytophaga wellsi new species. 



The midges were reared by Mr. B. W. Wells INIarch 20, 191 6, from 

 a somewhat top-shaped leaf gall on hackberry, Celtis occidcntalis, 

 collected presumably in the vicinity of Columbus, O. 



