DIPTERA. 73 
from its base ; a broad brown band extends nearly to the hind border from 
the latter part of the brown on the fore border ; wing-ribs and veins pitchy, 
the latter partly tawny: scales grayish tawny, with darker borders ; poisers 
pitchy. Length of the body 4 lines; of the wings 9 lines. 
Cape Breton. 
Curysors provocans, Fem. 
Nigra, capite fulvescente, antennis nigris basi fulvis, pedibus nigris, tarsis 
posterioribus basi ferrugineis, alis limpidis fusco vittatis et fasciatis. 
Body black: covering of the head hoary above, tawny in front, in- 
cluding some large black shining marks which are situated like those of 
C. eweitans ; the pair on the face are much larger than those of the pre- 
ceding species: eyes black; all the facets very small: sucker black ; 
lancets dark tawny; palpi pitchy: feelers black, like those of C. encitans, 
but the first and second joints are clothed with hoary hairs: chest and 
breast tinged with gray; a tuft of pale yellow hairs on each side at the 
hase of the wings: abdomen slightly obconical, clothed with a very few 
short hoary hairs, a little broader and much longer than the chest: legs 
black; shanks and feet clothed with very short black hairs; four hinder 
feet dark ferruginous at the base ; foot-cushions dark tawny: wings colour- 
less, brown at the base, along three fourths of the fore border, and beneath 
the fore border on one fourth of the length and half of the breadth of the 
wing from the base; a broad brown band extends from the fore border and 
approaches nearer to the hind border than that of C. eacitans; wing-ribs 
and veins black ; scales gray with pitchy borders ; poisers pitechy, Length 
of the body 34 lines ; of the wings 8 lines, 
Cape Breton, 
Curysors stmuLans, Mas. 
Nigra, capite subtus pectore abdominisque maculis duabus basi canis, ab- 
domine.maculis trigonis fulvis trivittato, antennis pedibusque nigris, 
tarsis posterioribus basi tibiisque intermediis fulvis, alis limpidis 
nigro vittatis fusco fasciatis margine postico cinereis. 
Body black: covering of the head hoary in front and beneath where 
it is clothed with hoaxy hairs; a tawny tinge on the face, which has on 
L 
a 
ae ev 
—_— os | 
_ 
eS A el ele see! © A, i =e — _ ie 
