SCEPTEA.—PTILOSTON YCHIA. 109 
with smoothly appressed scales, laterally compressed. Maxillary Palpi short, straight. Haustellum 
clothed. Head and face thickly scaled. Thorax smooth. Forewings narrow, elongate, the costa slightly 
convex, apex depressed, rounded, termen oblique: neuration 11 veins; 7-8 coincident, to costa; 6 and 
(7+8) stalked; 9 connate with (748); 2-3 stalked; 4 and 5 somewhat approximate; 1 basally furcate. 
Hindwings rather broader than the forewings, apex produced, termen scarcely sinuate, dorsum rounded : 
neuration 8 veins; 3-4 connate, or short-stalked ; 6-7 stalked; 5 straight, cubital. -Aédomen smooth. 
Legs: hind tibiae rather densely clothed. 
Near Glyphidocera Wlsm., from which it differs essentially in the stalking of FW: 6 
and (7-+8)—aberratella Busck will fall into this genus; it is a larger species than 
decedens, with darker head. 
1. Sceptea decedens, sp. n. (Tab. III. fig. 30.) 
Antennae S$ without notch; dull greyish ochreous. Palpi pale ochreous, sprinkled with fuscous on the 
outer sides and around the apex of the terminal joint. Head and Thorax pale ochreous, much suffused 
with greyish fuscous. orewings pale ochreous, suffused and sprinkled with olivaceous fuscous, tending 
to become concentrated in an ill-defined streak along the fold, a spot on the middle of the cell, another 
at the end of the cell becoming absorbed in an indistinct oblique transverse fasvia from costal to dorsal 
cilia, a subterminal shade, and a few dark spots around the apex and termen; cilia dirty ochreous, a 
slight shade-line along their base. Hwp. al. 9 mm. Hindwings brownish grey; cilia tending to 
brownish ochreous. Abdomen brownish grey. Legs very pale brownish, with three dark tarsal bands 
above. 
Type 3 (65560) Mus. Wlsm. (Godm-Salv, Coll.) BM. [PTT. (65561, 65563) US. Nat. Mus. ] 
Hab. Mexico: tapasco: Teapa, III. (4. H. Smith). Five specimens. 
PTILOSTONYCHIA, gen. n. 
(wrikov=a feather ; ordvv§ =a tusk.) 
Type: Ptilostonychia plicata Wlsm. (Tab. IIT. fig. 31.) 
Antennae $ notched beyond the basal joint. Labeal Palpr recurved, reaching the length of the terminal joint 
above the head ; median joint strongly tufted with rough scales of equal length, and blending with those 
on the rather shorter terminal joint, which is also strongly tufted with rough scales throughout in the ¢, 
but slightly less so in the 9. Maxillary Palpi short. Haustellum scaled. Head with appressed scales. 
Thorax smooth. Forewings elongate, inclining to ovate, the termen slightly oblique; tornus rounded, 
but somewhat pronounced : neuration: 11 veins, 7-8 coincident, 6 and 9 separate; 2-3 stalked, 
4 separate. Hindwings triangular, the termen and dorsum evenly, but only slightly convex; with a 
strongly raised blister-like elevation above vein 1° at the base in the ¢: neuration 8 veins, 6—7 stalked; 
3-4 stalked, 5 approximate to 4. Abdomen smooth. Legs: hind tibiae only slightly roughened above. 
This genus is derived from and very close to Glyphidocera W|sm., with which it 
agrees absolutely in wing form and neuration, it differs however in the remarkably 
clothed labial palpi. ‘he strong tufting of the terminal joint of the palpi occurs 
to some extent in both sexes and bears some resemblance in the ¢ to the genus 
Stoeberhinus Btlr. 
1. Ptilostonychia plicata, sp.n. (Tab. IIT. fig. 31.) 
Antennae fawn-brown. Palpi dark fawn-brown, the brush-like scales with a hoary sprinkling, through the 
tips of the scales fading to pale cinereous.. Head and Thorax purplish fuscous. Forewings purplish 
fuscous, more especially at the base and along the upper side of the fold, fading to dark fawn-brown 
