THE CANADIAN ENTOMOLOGIST. 127 



8. Chilosia pacifica, n. sp. Plate V., Fig. 2, a. 



Male — Eye.s pilose, scutellum '.vith bristle-like hairs on the margin, 

 arista bare, abdomen largely opaque, robust, thickly white pilose. 



Female. — Shining brassy, abdomen broad, entirely shining, antennae 

 brown, third joint reddish. 



Male. — Eyes long dense, whitish pilose. Front swollen, sulcate, long 

 black pilose. Face uniformly lightly white pollinose and short, sparse, 

 white pilose below, extending only moderately below the eyes, obliquely 

 truncate at the apex, the lower border of the cheeks straight. In outline 

 the face is almost straight below the antennte to the inconspicuous, 

 obtuse, nasiform tubercle, thence distinctly concave to the tip of the 

 epistoma, which forms a second tubercle almost as large as the upper one. 

 Antennte of moderate size, the second and third joints black, third 

 brown on the upper half, yellowish-red below, very slightly broader than 

 long, almost square, the lower outer angle rounded. Arista, bare, basal, 

 black. Dorsum and pleura shining greenish, densely, long, erect whitish 

 pilose. Scutellum with long, bushy, white pile, intermixed with slightly 

 strengthened black hairs on the margin. Abdomen but little broader than 

 the thorax, everywhere long erect whitish pilose, first segment shining, 

 second entirely opaque, third opaque, except a narrow posterior margin 

 and lateral triangles reaching from the anterior margin two-thirds of the 

 width of the segment, of shining green, fourth segment entirely shining 

 greenish. Legs black, long white pilose. The basal third, and the narrow 

 apex of the middle and anterior tibiae and the basal third of the posterior 

 are dull testaceous. The colouring of the posterior pair is very incon- 

 spicuous. Wings grayish hyaline, veins brown, stigma luteous. Tegulse 

 white. L. c. 10 mm., al. 8 mm. 



Female. — Front shining brassy, coarsely punctured, pitted above the 

 base of the antennae, short white pilose. Along the eye margins, midway 

 between the antennse and the ocelli, there are short elevated ridges. 

 Face shining greenish-black, short, sparse, whitish pilose below on the 

 sides ; the orbital margins densely short, white pilose. Face considerably 

 concave below the antennae to the conspicuous tubercle, thence with a 

 short, deep concavity to the epistoma, which forms another less con- 

 spicuous tubercle, not produced below the eyes nor obliquely at the apex, 

 which is broadly truncate. Lower border of the cheeks slightly concave. 

 Occiput long yellowish pilose. Eyes much shorter pilose than on the 

 male. Antenna^ moderate in size, deeji brown ; third joint reddish- 



