THE CANADIAN ENTOMOLOGIST. 177 



TENTH REDO— NEW SPECIES.* 



BY ALEX. D. MACGILLIVRAY, ITHACA, N. Y. 



1. Antennas black 2. 



Antenna? rufous : 



Black, with the following parts rufous : the antennas, a spot on the 

 cheeks, the tegulaj, the wings, especially at base, and the front 

 and middle femora, on the femora shading to blackish ; with the 

 following parts yellow : the clypeus, the labrum, the mandibles 

 except at apex, the scutellum, the trochanters, the tibise. except 

 the apices of the posterior pair which are brownish, the tarsi, the 

 sides and a narrow margin to the basal plates, and a spot above 

 the posterior coxa? ; the clypeus broadly emarginate ; the third 

 segment of the antennae twice as long as the fourth ; the front 

 flat between the antennae. Length, 11 mm. Habitat — Amherst, 

 Massachusetts (Prof. C. H. Fernald) Fer)ialdii, n. sp. 



2. Head more or less yello'w above the base of the antennae 3. 



Head black above the base of the antennae 4. 



3. Posterior femora black above : 



Greenish-white, with the following parts black : the antennae, a five- 

 lobed spot on the vertex, three of the lobes being above the 

 base of the antennae and another at each meso-caudal angle of 

 the eye, the back of the head, a transverse band on the pro- 

 notum, the median lobe of the mesonotum except the V-spot, 

 the lateral lobes except a minute dash on their cephalic half, 

 the metathorax except its scutellum and the posterior part, an 

 oblique band on the suture between the mesopleura and the 

 metapleura, a four-lobed spot on the disc of the basal plates, a 

 fuscous spot on each side of the meson of the first tergal seg- 

 ment, the caudal margin of the metapleura, the bases of the 

 coxae, and the middle and posterior femora above; the wings 

 are very slightly fuscous, the apex of the stigma and the veins 

 black, the costa yellowish and distad of the stigma greenish ; 

 the clypeus squarely emarginate ; the third segment of the 

 antennae one-third longer than the fourth ; the posterior legs 

 beyond the femora and the abdomen beyond the third segment 



■'See Journ. N. Y. Ent. Soc, V., 1897, 103-108, where the remaining species that 

 I have described are arranged analytically. 



