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NATURAL SCIENCES OF PHILADELPHIA. 537 



with brown hairs. Wings red ; veins darker. Fore wings slightly brown 

 along the costa and elsewhere, indisinctly sprinkled with pale brown, with 

 two blackish dots, one at the base of the anterior inferior veins, the otber be- 

 tween the first and the costa. Hind wings brighter red, with three black 

 lots, two in the disk, and one near the hind border towards the inner angle. 

 Variety. Fore wings almost wholly brown. Hind wings with a broad, 

 blackish submarginal stripe. 



*P. albicosta, Walker. Blackish brown. Antennas black. Thorax 

 in front with a white band, which is most apparent ou each side. Fore coxa; 

 with red stripes. Costa of the fore wings white. 



Male. Abdomen above with red, half interrupted bands ; tip thickly tufted 

 with white hairs. 



Female. Abdomen above bright red, with black dorsal dots ; tips white ? 



Mexico. 



* P. f u 1 i g i n o s a , Stephens. Fore wings reddish fuliginous or dark red- 

 dish brown, with a black spot beyond the middle. Hind wings black or dull 

 pink, with hind margin black ; cilia pink. Abdomen with three rows of black 

 spots. The fore femora bright pink. 



St. Martin's Falls, Albany River, Hudson's Bay and Europe. 



LITHOSIID^E and GLAUCOPIDID^. 

 Lycomokpiia, Harris. 



Wings narrow. Fore wings nearly fusiform. Near the posterior end of the 

 disk the subcostal vein gives rise to two marginal nervules and two nearly 

 equidistant exterior to the disk. Without post-apical nervule. The subcosto- 

 inferior nervule and the discal arise on a common stalk, the latter angulated 

 in the middle and receiving the discal fold. The median vein is 4 branched, 

 the posterior arising at a point opposite the middle of the space between the 

 first and second marginal nervules. Hind wings without costal vein. Sub- 

 costal bifid near the tip. the lower branch giving rise to an oblique discal. 

 Median vein 3-branched, the superior nervule receiving the discal fold. 



Head smooth, free, without ocelli. Face rounded. Eyes moderate. An- 

 tennas a little shorter than the body, biserrated or very minutely pectinated. 

 Palpi short, little exceeding the clypeus, cylindric, porrected ; the basal joint 

 long, nearly equal to the front ; the middle and terminal joints equal, very 

 short and ovate. Tongue a little longer than the thorax beneath. 



Body slender, nearly cylindrical, not metallic. Patagia scale-like. Hind 

 wings equal in length to the body. Legs rather slender ; fore tibiae with a 

 short concealed tibial spur; hind tibia; with one middle spur and two moder- 

 ate apical spurs. 



L. P hoi us, Fabr, Bluish black. The tegulas and the basal fourth of 

 the wings luteous. 



Nova Scotia, Mass., Penn. 



Ctenccha, Kirby. 



Wings broad, or narrow, elongate-trigonate. Fore wings with the subcostal 

 vein giving rise near the posterior end of the disk to a single marginal nervule, 

 and another exterior to the disk and nearer to it than to the post-apical ner- 

 vule, which is given off near the apical nervulet. The subcosto-inferior ner- 

 vule and discal branch from a common stalk, the latter straight and the discal 

 fold received by the medio-superior nervule. The median vein 4-branched, 

 the posterior much behind the marginal branch, and rather remote from the 

 penultimate. Hind wings without costal vein ; subcostal bifid, with the dis- 

 cal given off from the fork and receiving the discal fold at its angle. Median 



I860.] 



