Sept., I9I6.J Felt: New Western Gall Midges. 196 



broad, subtruncate apically ; ventral plate long, broad, broadly and roundly 

 emarginate. Harpes moderately stout, triangular, with a short, rounded, chit- 

 inous lobe at the internal distal angle; style short, stout. Type Cecid. 1633. 



Diarthronomyia floccosa new species. 



The midges characterized below were reared by Mr. P. H. Tim- 

 berlake, November 20 and 28, 1912, from large, woolly galls on Arte- 

 misia calif ornica collected on the ridge between Mill Valley and the 

 Muir Woods in Marin County Cal. Apparently the same gall was 

 also found at Santa Barbara, Cal. This species approaches D. cali- 

 f ornica Felt, from which it may be easily separated by the relatively 

 much longer antennal segments and the greatly produced circumfili. 

 The gall is also very different. 



Gall. — Irregular, lobulate, woolly masses apparently arising from lateral 

 buds, frequently confluent, individual galls having a diameter of about 4 mm. 



Female. — Length 1.25 mm. Antennae extending to the third abdominal 

 segment, sparsely haired, pale yellowish; 14 subsessile, cylindrical segments, 

 the fifth with a length four times its diameter, the distal circumfilum high 

 and produced, frequently extending to or beyond the base of the next seg- 

 ment ; terminal segment reduced, narrowly conical, with a length nearly three 

 times its diameter and tapering to a narrowly rounded apex. Palpi probably 

 biarticulate. Head black. Thorax mostly pale yellowish brown. Scutellum 

 and postscutellum lighter. Abdomen crimson red, shading posteriorly to a 

 fuscous yellowish brown. Wings hyaline, narrow, with a length fully twice 

 the width ; halteres pale yellowish brown. Legs pale yellowish ; claws strongly 

 curved, unidentate, the pulvilli nearly as long as the claws. Ovipositor nearly 

 as long as the abdomen, apically slender, the terminal lobes relatively short, 

 broad, tapering roundly to a narrowly rounded apex and sparsely setose. 

 Color characters from Timberlake. Type Cecid. 1628. 



Monardia foliata new species. 



The male described below was taken on a window and received 

 under date of March 21, 1916, from Professor T. D. A. Cockerell, 

 Boulder, Colo. It is quite different from the entire series with four- 

 teen antennal segments, because of the distinctly longer stem of the 

 fifth antennal segment. The genitalia are also peculiar. 



Male. — Length 2 mm. Antenna nearly as long as the body, sparsely haired ; 

 14 segments, the fifth with a stem one-fourth longer than the basal enlarge- 

 ment, which latter has a length one-fourth greater than its diameter; terminal 

 segment slightly produced, broadly conical. Palpi ; first segment subquadrate, 

 the second and third each a little longer and more slender, the fourth nearly 

 one-half longer than the third. Mesonotum shining black. Scutellum and 

 postscutellum dark reddish brown. Abdomen sparsely white-haired, dull black ; 



