AMERICAN MICROLEFIDOPTERA. 107 



very .short, smooth, and first and second joints rather thick ; termi- 

 nal joint pointed, slender and as long as the second." He further 

 states: "I have but one male, which is without labial palpi, etc." 

 No doubt the minuteness of these organs in the male caused them 

 to be overlooked. The palpi of the female of Ploiophora do not 

 agree with the description, and those of P. confusella have the sec- 

 ond joint distinctly longer than the terminal. There is no authentic 

 specimen of P. laticapitella in the collection of the Academy of 

 Natural Sciences, Philadelphia, which was the recipient of the 

 Clemens collection, and which I have had the opportunity to ex- 

 amine on several occasion. The specimens hearing the specific name 

 were determined by Lord Walsingham. Among a lot of material 

 sent to his Lordship for determination, 5 specin)ens were returned 

 as laticapitella, and which now I find occasion to distribute among 

 two genera and four species. 



P. nie€liof»!>ici«*Ila sp. n. (PL VI, fig. 5). Female. — Greyish fuscous: 

 thorax, vertex and aiitennal eye-caps with a faint cupreous lustre, face tawny; 

 antennse pale greyish fuscous. Labial palpi pale yellowish, distinct but short, 

 joints 2-3 equal. Fore wings: costa convex from the base to apex ; extreme costa 

 and a broad transverse fascia before the middle, dark fuscous, the latter is rectan- 

 gular to the margins, faced on both sides by a paler shade; apical part more 

 densely dusted with dark fuscous scales, stigmata obsolete, cilia concolorous and 

 with the apical part of the wing sparsely dusted with fine, white scales. Dorsal 

 segments 1-2 of abdomen with cupreous lustre. Under side : thorax, femora and 

 abdomen silvery, thorax sparsely, abdomen more densely dusted with fuscous; 

 legs pale fuscous, speckled with darker scales; tarsal joint not tipped with pale 

 at the apex. 



Expanse 12. mm., .48 inch. 



A single female specimen taken in July at electric light. Di.stin- 

 guished by the dark, transverse fascia of fore wing. 



P. orimteila sp. n. {PI. VI, fig. 7). — Thorax, patagia, head and antennal 

 eye-caps strongly shining, aeneo-fuscous, antennae dark fuscous. Labial palpi 

 distinct, pale fuscous, second joint above and third darker; the former distinctly 

 longer than the terminal. Fore wings more elongate, costa not convex from the 

 base, depressed along the middle to beginning of cilia; base golden brown, fouling 

 outwardly; a curved white fascia at one-third the wing length, not including ex- 

 treme costa, and equidistant from the base at both margins it fades gradually 

 toward the base. Eest of wing deep purple-brown, a paler dorso-discal area oppo- 

 site the beginning of the costal cilia, caused by sprinkling of white scales, this 

 area contains two dark fuscous dots at end of cell, outei' part of wing with 

 seneous reflections towards base : the margins of the apical part of ihe wing with 

 the base of the adjoining cilia are sjirinkled with white scales; cilia dark grey. 

 Hind wings grey, cilia concolorous, somewhat stramineous toward the apes. 



TRANS. AM. ENT. SOC, XXVII. OCTOBER. 1900 



