PARKER: NEW ENGLAND SAK('( )IMIAC;iI)AE. (;3 
4. Ravinia latisetosa, n. .sp. 
PI. 1. liu. L'H: I'l. 7, till. 4."). 
Type cf : Massuchusett.s A^'ricultural ( 'ollc},'^. 
Paratypes (cf ): Bussey Institution of Harvard I'niversity, one; 
Boston Society of Natural History, one; Connecticut Agricultural 
Experiment Station, one; personal collection of author, one; collec- 
tion of (". W. Johnson, one. 
Breadth of front at narrowest part at least two thirds eye width; 
lateral vertical bristles present; anterior face of posterior femur typi- 
cally with three rows of bristles, but those of intermediate row rather 
short; suhmesotibial bristle al)sent; first and third veins bristly; four 
pairs of postsutural dorsocentrals, last two the longest; lamellae of 
fourth ventral plate widely separated, without 'brushes.' 
Length: 6.5 to 8 mm. 
Head. — Viewed from side parafrontals and genae with dark reflec- 
tions. Breadth of front at narrowest part at least tw^o thirds eye 
width; cheek height approximately one fourth that of eyes, some- 
times slightly greater. Front prominent; inner orbits of eyes in its 
upper part parallel or nearly so; sides of frontal vitta parallel, a little 
drawn in at base. Second antennal joint with brownish tip; third 
about twice length of second, arista plumose on basal half. Back of 
head somewhat convex; three rows of black cilia behind eyes; meta- 
cephalon clothed with whitish or faintly yellowi.sh hairs. Genae with 
a row of minute, indistinct hairs near lower eye orbit. Palpi dark. 
Chaetotaxy. — Lateral verticals present, weakly to well developed 
vibrissae on a line with oral margin. 
Thorax. — Sutural ridge bare. Hairs covering anterior spiracle 
light colored, mostly grayish; those of anterior margin of posterior 
spiracle for most part yellowish but brown basally; spiracular cover 
pale yellowish. 
Wings. — Bend of fourth longitudinal vein normally a right angle; 
anterior cross-vein behind end of first longitudinal; first and third 
veins bristly; costal spine short and inconspicuous; section V of costa 
slightly greater than section HI; alulae fringed with short hair; calyp- 
ters whitish, outwardly fringed with white hairs. 
Legs. — Dark; posterior trochanter without brush; anterior face 
of femur typically with three rows of bristles, but those of second row 
sometimes very short ; tibia straight or slightly curved ; tarsus, equal 
