490 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvii. 



tally. Dorsum free from secretion, convex; no marginal rim, ])ut the 

 lateral wax tu])es are distinct, crenulations broad and round, reentrant 

 angles acute. There are four pairs of dorsal spines; a pair that are 

 short and stout on the cephalic region; two pairs of long, curved ones 

 on the thorax ; and a pair that are short and slender at the vasif orm 

 oritice; caudal and latero-caudal hairs, and vasif orm oritice as in pupa- 

 case. Legs, antennse, and eyespots not visible. 



Larva. — (Stage 3.) Size, about 0.0 by 0.4.5 mm.; elliptical; under 

 hand lens, shining brown-black; under microscope ))y transmitted 

 light, smoky-brown with darker spots on outer part, the abdominal 

 segments outlined with dark l)rown and each with many minute, 

 transparent dots. Central dorsum very convex, no marginal rim, but 

 the flutings of the lateral wax tubes are very prominent nearly to the 

 body sutures, the margin is cremdated, incisions deep and acute, the 

 ends of the tubes rounded distally. Spines as in stage 2, but short. 

 Lateral fringe of wax rods somewhat overlaid with flocculent wax. 

 Caudal and latero-caudal hairs, and vasiform oritice as in pupa-case. 

 Legs, antennie, and eyespots not evident. 



Pupa-case. — Size, about 0.9 by 0.6 mm.; oval. Color, under hand 

 lens, shining Idack; under microscope, deep ))rown, lighted b}' a nar- 

 row, submarginal, oval stripe of semitransparent yellow; there are 

 also two wedge-shaped, semitransparent places on the cephalic region, 

 through which the red coloring of the eyespots show, and a pair of 

 small, circular spaces on the third and fourth segments of the alxlo- 

 men. The copious, asbestiform, lateral fringe of white wax may 

 extend out on leaf to more than the width of case; basally it is con- 

 tinuous, distall}' ragged, and of unequal lengths. The similar dorsal 

 secretion forms a second fringe which rises perpendicularly to a consid- 

 erable height above the dorsmn and then curves outward and down- 

 ward — sometimes the ends curl under, making a roll; central dorsum 

 free from secretion. Dorsum very convex, body sutures prominent; 

 lateral wax tubes well developed, deflexed to ventral disk, making a 

 vertical, rather high, marginal rim, which is narrowed at the caudal 

 end of case; crenulations rounded distally, incisions deep, reentrant 

 angles acute; mesad of the ends of the wax tubes is a row of small 

 openings, one on the convex side of each tube. Dorsum with a longi- 

 medial keel, crossed b}" a deep, transverse furrow on the thorax, on 

 which are two pairs of small pores. The cephalo-marginal, latero- 

 caudal, and caudal hairs are present, the latter longer than usual. 

 Vasiform orifice small, subcircular, with cephalic margin almost 

 straight; operculum relatively the same shape and size, filling the ori- 

 fice; lingula obscured. On the ventral surface the reduced legs are 

 evident; no trace of antennae. 

 Ad/ults. — Unknown. 

 Cotypes.—^o. 7085, U.S.N. M. 



