506 PROCEEDINfrS OF THE XATIONAL MVSiEUM. vol. xxvii. 



end lingula not (ILstint-t, Reducod legs seen on the ventral .sui'face; 

 eyesj)ots single, color bright red. In other respects essentially as in 

 stage 1. 



L((rva. — (Stage 3.) Size, 0,9 by 0.75 mm.; narrowed caudad. 

 Essentiall}^ as in pupa-case. 



Pupa-case. — Size, 1.16 by 0.8 mm.; shape broadly elliptical, slightly 

 narrowed eephalad, Avith caudal margin truncate, and emarginate to 

 meet the furrow. There is neither lateral nor dorsal secretion, but 

 when case is removed from the leaf, there is left a narrow, vertical, 

 ventral fringe. Color from pale to deep yellow. Dorsum convex 

 with man}" small pores scattered over it and covered by faint polyg- 

 onal markings, the outer third is also covered with minute markings, 

 or, it may be, transparent papilla?. Mesad of these on the abdomen 

 are three parallel rows, each with five large, nearly circular transpar- 

 ent places, in each of which are a number of irregular spots, folds, or 

 wrinkles, a row along the dorsi-medial line and a row each side of it;" 

 after the specimens have been mounted for some time in Canada bal- 

 sam, these have a tendency to disappear; these "spaces" are probably 

 the "pores'" of Quaintance. Marginal rim varies in wndth and dis- 

 tinctness, crenulations wide and shallow. Abdominal and thoraco- 

 abdominal sutures well defined along the dorsi-meson. The usual 

 caudal, latero-caudal, and cephalo-marginal hairs are present. There 

 is also a pair of hairs at the vasiform orifice and a pair eephalad of 

 these. Vasiform orifice characteristic of this species, conspicuous 

 both in shape and color; elongate-subtriangular, the posterior end 

 merged into the furrow which leads from it to the caudal end of case; 

 operculum a l)road, short semi-ellipse with caudal, free end somewhat 

 pointed and densely setose along the margins; color, dusk}- brown; 

 lingula somewhat darker, dorsum convex, lateral margins with five 

 pairs of long sette and a row of short hairs. Eyespots reniform, 

 large and reddish. On the ventral surface are seen the reduced legs, 

 but there is no trace of antennte. 



Adult female. — Unknown. 



Adult male. — Length of bod}-, 1.13 mm.; head and thorax, pale 

 dusky-brown; abdomen, legs, and antenna?, paler. Eyes large, reni- 

 form, and black; by transmitted light, they are the same color but the 

 outer rows of facets are colorless. Antenna?: Segment 1, cup-shaped, 

 diameter and length equal; segment 2, subpyriform, densely setose; 

 segments 3 to 6, inclusive, cylindrical; segment 7, subfusiform, with 

 an apical hair; segment 3 is the length of segments tt, 5, 6, and 

 plus one-half the length of segment 7; segments 4 and 5 are equal in 

 length; segment 7 is slightly longer than segments 4 or 5. Segments 

 2, 3, and 7 have each a number of hairs set in conical bases; segments 

 3 to 7, inclusive, closely ringed with minute hairs. 



«0n the thorax and cephalic region there are found similar spaces, which vary in 

 number and position. 



