486 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxii. 



tiire is complete, it seems like three corneous points, the central longer 

 and a little above the others. Thorax rather small, oval, convex, the 

 vestiture thin, mostly hairy, forming no definite tuftings. Abdo- 

 men conic, well exceeding the anal angle of secondaries, smoothly 

 scaled. Legs modeiate in length, proportionate, smoothly scaled, 

 tibi;e not spinulated, anterior with a slender curved claw at tip. Wings 

 moderate, seeming rather frail, because their peculiar maculation gives 

 them a thinly scaled appearance. Primaries long, the costa scarcely 

 convex, apex somewhat drawn out, outer margin oblique and arcuate. 

 Secondaries proportionate, vein 5 a very strong fold, almost midway 

 between 4 and 6. 



The genus resembles Acopa in habitus and general appearance, and 

 belongs with it. In frontal structure it resembles Tristyla; but the 

 vestiture is not scaly and the tibial armature and weak tongue will 

 separate it. 



89. NARTHECOPHORA PULVEREA, new species. 



Ground color a somewhat reddish luteous, evenly powdered with 

 blackish scales, so separated that the ground color showing through, 

 makes the wing seem semitransparent. Head and thorax immaculate. 

 Primaries with a broad, somewhat diffuse band, even or toothed at the 

 middle, representing the transverse anterior line. A similar, more dif- 

 fuse, narrower, bisinuate band represents the transverse posterior line. 

 Eeniform a white crescent at the end of the discal cell. Secondaries, 

 more whitish, somewhat silky, immaculate, a little more dusky out- 

 wardly. Beneath, silky reddish-gray, immaculate, save that on the 

 primaries the white reniform shows through from the upper side. 



Expanse, 21 to 23 mm. = 0.84 to 0.92 inch. 



Habitat, — Tucson, Arizona, July 19, 20, 21. 



Two males and two females, very much alike, save that the females 

 are a trifle darker and better marked. The species is so simply orna- 

 mented that it should be easily recognizable, even aside from the strong 

 generic characters. The examples were taken by Mr. E. A. Schwarz, 

 and are from the collection of the United States National Museum. 



Ti/pe.— Cat. JS^o. 4783, F.S.N.M. 



PALADA, ne^A^ genus. 



Head small, closely applied to thorax, though hardly sunken. Front 

 rough and protuberant, clothed with short, stiff vestiture. Tojigue 

 normal. Eyes naked, reniform. Palpi reaching to the middle of front, 

 second joint densely clothed, terminal joint short, oblique, obtuse. 

 Thorax plump, with a layer of close scales, over which is a fluffy, thin, 

 hairy vestiture. Abdomen conic, reaching to the anal angle of the 

 hind wings. Legs short, stout, clothed with scales and long hair, tibife 

 not spinulated, anterior short and broad; at the tip the inner angle is 

 prolonged into a horny, claw-like process; the outer into a short, blunt 



