ANNETTE F. BRAUX. 349 



Forewing ferruginous brown, ruhy-tiuted at the base, with two silvery bands 

 dark margined on both sides, one near the base, and one in the middle of the 

 wing. A costal and dorsal silvery spot near the tip, opposite to each other, and 

 a costal silvery spot just before the tip, the two former dark margined on both 

 sides, and the latter slightly dark margined. No hinder marginal line ; the cilia 

 opposite the last dorsal spot blackish, and the wing beneath the last costal spot 

 golden brown. Hindwings pale brownish gray, cilia the same." [Expanse 

 4.5-5 mm.] 



Originally described by Clemens as above from specimens from 

 tentiform mines on the underside of Desmodium viridiflorum L. It 

 has since been bred from mines on several allied plants, among 

 them Lespedeza capitata Michx. and Phuseolus pauciflorus Benth. 



Frey and Boll (Stett. ent. Zeit., xxxvii, 227, 1876j made note of 

 the peculiar enlarged appearance of the apical third of the forewings. 



The specimens described as (jregariella were bred from lai'ge infla- 

 ted mines on the underside of Fhaseolus j}aueiJiorus Benth., a num- 

 ber of imagoes emerging from one mine. In all other respects, ex- 

 cept the gregarious larval habits, these are identical with desmodiella. 



However, in a series bred by Mr. August Busck from similar 

 mines on Desmodium at Washington, D. C, all of the specimens 

 were noticeably smaller, the largest expanding but 3 mm., and 

 almost all lacked any indication of the white costal streak before 

 the cilia (Plate XXIV, Fig. 15). 



On various species of Lespedeza, Avhere both the gregarious and 

 solitary larval habit is exhibited on the same plant, I have bred 

 both varieties from the same mine. 



CREMASTOBOMBVCIA,* new subgenus. 



Cremastobombycia differs from Lithocolletis proper in the follow- 

 ing characteristics: terminal joint of the labial palpi a little longer; 

 vein 5 of the forewings present, 5 and 6 stalked, vein 6 of the hind 

 wings present, 5 and 6 long stalked (Plate XX, Figs. 6, 7}, some- 

 times borne on an independent stalk to near the base, where this 

 stalk is short stalked with the upper median vein. The stalk is 

 obsolete from the middle to the end of the cell (Plate XX, Fig. 6), 



Larva cylindrical, without prolegs on 10, usually pale greenish or 

 yellowish becoming darker at maturity. All of the species, as far 

 as known, are miners in the leaves of various species of Conipositse, 

 the mines being found upon the lower side of the leaf, except that of 



■* From K/oe/Atto-Tos, suspended ; and jiofxjivKLOV , cocoon. 



TRANS. AM. ENT. SOC, XXXIV. OCTOHER, 1908. 



