1915] Biology of Juniper Berry Insects 173 
the first longitudinal vein, and extends across the middle of the fifth 
longitudinal vein, fading out before reaching the posterior margin of the 
wing. The third is nearly parallel with the second, not quite as broad, 
runs over the posterior cross-vein and reaches the posterior margin just 
behind the tip of the fifth longitudinal vein. The fourth band is oblique, 
completely united with the third on the costal border, and reaches the 
posterior border at the tip of the fourth longitudinal vein. First 
longitudinal vein with short, black, bristles. Anterior cross-vein a 
little oblique, and slightly curved. Anal cell drawn out to a distinct 
point (Fig. 4, Pl. XIII). 
Described from six females and three males, reared from 
berries of Juniperus virginiana at Six Mile Creek, Ithaca, N. Y. 
Types in the author’s collection, University of Minnesota. 
Paratypes deposited in Cornell University. 
According to Doane’s table of the North American species 
of Rhagoletis, the present species runs down to R. ribicola 
Doane. The two species may be separated by the following 
characters: 
Anal cell drawn out to a distinct point, spot on scutellum white and small... 
juniperinus 
Anal cell not drawn out to a distinct point, spot on scutellum light yellow and 
NBWASENE 1S toe ce Ge tre tee cecal IE Ie Sr ta ae a RO Re ed oe ribicola Doane. 
Larva—Length 6 mm.; width 1.4 mm. Generally dirty white, 
sometimes slightly greenish (Fig. 1, Pl. XVI). Body rather stout, 
tapering very little in back, but more in front. Two great hooks (Fig. 
11, Pl. XVI). The anterior spiracles (Fig. 6, Pl. XVI) are funnel-shaped, 
ending in eleven or twelve lobes, each of which, in turn, seem to end in 
a number of minute pores. The base of the spiracle is made up of 
polygonal areas. A spinulose area on either side of the dividing line, 
between segments, from the third and onward, becoming more pro- 
nounced towards the venter, where they form the ventral fusiform areas 
from the fifth to the twelfth segments. A small transverse line is visible 
on the middle of each ventral segment. The anal tubercles are prom- 
inent, and slightly convex. The stigmal plates are about twice their 
diameter apart, slightly elevated (Fig. 3, Pl. XVI), and composed of 
three straight slits directed towards the base of the opposite plate 
(Fig. 10, Pl. XVI). Between the stigmal plates and the anal tubercles 
are two pairs of distinct fleshy tubercles (Fig. 2 and 3, Pl. XVI), the two 
nearer the anal tubercles being smaller and a little closer together. 
Egg—tLength 0.64 mm.; width about one-fourth of the length. 
Color whitish with the proximal end yellowish; tip or pedicel brownish. 
Egg is smooth all over (Fig. 8, Pl. XVI). 
