TTRANOT^NIA CONTINENTALIS 915 



vertex blackish with a slight iridescence, a large silvery-blue spot on vertex and 

 laterally a broad line of silvery-blue scales runs from the eye-margins near 

 vertex obliquely to bases of prothoracic lobes; bristles along margins of eyes 

 coarse, black, two paler ones projecting forward between the eyes. 



Prothoracic lobes large, prominent, remote dorsally, clothed with broad, 

 flat bluish-silvery scales and with a few coarse dark bristles. Mesonotum bright 

 yellow-brown, three dorsal longitudinal darker brown stripes, between them a 

 pair of narrow, bare, pale plumbeous stripes, the outer dark stripes continued 

 along sides of antescutellar space; a large, dark brown patch over roots of 

 wings; vestiture of sparse, coarse, hair-like, dark broAvn scales, denser on dark 

 portions; a short line of broad bluish-silvery scales at lateral margins before 

 roots of wings; antescutellar space bare, very pale plumbeous; bristles coarse 

 and long, brown. Scutellum brownish luteous, the mid lobe large, each lobe 

 with a patch of broad dark-brown scales and a few coarse brown bristles. Post- 

 notum elliptical, prominent, nude, ochraceous, with a broad median brown 

 stripe. Pleurae ochraceous, with a large dark-brown spot on middle, partly 

 covered by a patch of broad, flat bluish-silvery scales; coxae ochraceous, with 

 patches of silvery-blue scales. 



Abdomen subcylindrical, truncate at tip; dorsal vestiture dull black, the 

 second, third, fifth, and sixth segments with very large patches of bluish- 

 silvery scales on the sides ; venter silvery scaled. 



Legs long and slender; vestiture of blackish-brown scales; femora pale- 

 scaled beneath on basal portion ; knees and tips of tibiae without white scales ; 

 hind tarsi with last two joints and outer half of third white-scaled. Claw 

 formula, 0.0-0.0-0.0. 



"Wings moderate, hyaline; the second vein very close to the first, second 

 marginal cell very short, about one-fourth the length of its petiole; second 

 posterior cell slightly longer, but still much shorter than its petiole ; basal cross- 

 vein distant nearly its own length from anterior cross- vein; scales on veins 

 small, brown, some long, narrow outstanding scales on lower branch of second, 

 on third, and on upper branch of fourth veins, a short patch of broad bluish- 

 silvery ones at base of fourth vein, a longer patch of similar scales in continua- 

 tion on fifth vein, involving about its basal fourth. 



Length : Body about 1.6 mm. ; wing 1.5 mm. 



Larva, Stage IV. Head elongate, longer than wide, bulging at the sides, 

 front margin with a median emargination and a sharp stout prominence each 

 side of it, a deep notch at insertion of antennae. Antennae small, subcylindrical, 

 stout, spined on one side, a single hair at basal third; four large unequal 

 terminal spines and two digits on a process. Eyes moderate, pointed. Both 

 pairs of dorsal head-hairs single, very stout and thick ; a two-haired tuft below ; 

 ante-antennal tufts multiple, rather remote from antennae. Mental plate 

 rounded triangular, apical tooth rounded, short; six teeth on each side, the 

 last three small. Mandible quadrangular, the area below dentition squarely 

 exserted; four filaments before tip, two long, two smaller, with a dense group 

 of hairs before the collar; cilia at edge supplanted by filaments; dentition 

 heavy, two sets of teeth on a process, rounded, the first in each group longest, 

 several irregular ones at base; exsertion below with hairs at tip; two long 

 serrate filaments and a group of hairs within. Maxilla hemispherical, divided 

 by a suture, hairy, outer half densely so; a group of serrate filaments at apex 

 on the suture ; two jointed filaments near base ; palpus small, with seven digits 

 of different lengths. Thorax rounded, wider than long; hairs abundant; short 

 subdorsal tufts of mesothorax and metathorax short and stellate; subdorsal 

 prothoracic tufts multiple. Abdomen moderate, anterior segments shorter; 



