332 

 Acidalia longipennata Packard. 1 'late 10, fig. 47. 



Acidalia longipmnata Pack., Fifth Rep. Peab. Acad. Sc., 71, L873. 



1 <? and 4 9. — A species with unusually long wings, the apex of (lie 

 primaries greatly produced, while (lie hind wings are well rounded. The 

 male antennae are almosl subpectinated, the bristles arising (rum acute tuber- 

 cles; female antennae filiform. Body and wings snow-white; palpi white, 

 very slender; front of head brown-black; four small distinct discal dots. 

 Primaries with three nearly equidistant, sinuate, wavy, rather broad, ochreous 

 lines: the inner one sinuate, remote from the base of the wing; the middle 

 one rims very near the discal dot, and is less sinuate than either of the two 

 others: outer line deeply curved twice; fringe pure white. Hind wings like 

 primaries, hut with two ochreous lines beyond the distinct discal dot. Be- 

 neath, both wings a little dusky, more or less thickly speckled with dark scales, 

 with a conspicuous dark hair-line half-way between the discal dot and outer 

 line on both wings. A row of dark marginal spots, as usual, on the upper 

 and under side of each wing. 



Length of body, <?,0.37, 9, 0.25-0.30; Core wing, c?,0.33, 9,0.30-0.38; 

 expanse of wings, 0.80 inch. 



Texas, May 2-8, September 24 (Bclfrage). 



This pretty snow-white species may be readily recognized by the long, 

 pointed primaries, the slender white palpi, subpectinated antennae, and three 

 distinct, sinuate, ochreous bands on the fore wings. The fore wings are longer 

 than in A. ossulata, while the hind wings are more rounded. It differs from 

 A. peralbata, to which it is nearest allied, by the longer and narrower wings 

 and its smaller size. The markings are very similar in the two species, but 

 in longipennata the discal dot and extradiscal line of the hind wings are situ- 

 ated farther from the base of the wing than in peralbata, this line in longi- 

 }>< unata being a little outside of the middle of the wing. 



Acidalia peralbata Packard. Plate 10, fig. 48. 



Acidalia peralbata Pack., Fifth Rep. Peab. Acad. Sc.,70, 1-;:;. 



1 <S and 5 9. — A small species with wings of the usual form, not being 

 elongated. Head white above, including antennae; (Void black-brown; palpi 

 white, with a few brownish scales. Body and wings pure while, the latter 

 with a few dark fine specks and four distinct dark discal dots. Fore wings 

 crossed by three wavy, sinuate, ochreous lines, the first and second a little 



