70 



ENTOMOLOGICAL NEWS [Feb., '15 



of facial bristles. The intensity of the pruinose coating of the 

 •mesonotum varies considerably, and the upper frontal orbital 

 bristle is more or less developed but is always much smaller 

 thaji the lower. 



Parydra nitida sp. nov. 



Black, similar in form to P. bituberculata Lw. Front polished with 

 hardly any perceptible brown pollen, and of a more or less metallic 

 color; face with lower part, clypeus, cheeks and occiput whitish prui- 

 nose. Metanotum also rather polished and nearly destitute of brown 

 pollen, with the anterior portion of two median grayish vittae percepti- 

 ble. Scutellum also polished, broadly rounded apically ; the small apical 

 tubercles not approximate and the lateral ones very small. Pleurae on 

 lower part and pectus whitish pruinose. Metanotum broadly polished 

 mcdianly with the lateral angles distinctly pruinose, the respective areas 

 sharply defined. Abdomen rather shining metaUic green, more or less 

 faintly whitish. Legs black with tarsi only faintly rufous basally; the 

 basal and apical silver spots of tibiae very distinct. Wings as in P. 

 bituberculata, but cross-veins rather faintly clouded, and second vein 

 ending beyond posterior cross-vein. Length 3.5-4-5 m"^- 



Holotype.— $ , Potlatch, Idaho. VI. 20. 1901. (J. M. Aid- 

 rich). [Type No. 6071, A. N. S. P.] 



Paratypes. — 2 $,29, with same data. 



The rather polished dorsal surfaces, the broad scutellum 

 with the very small tubercles, and particularly the distinctively 

 polished metanotum are the salient characters. 



CIRRULA nov. gen. 

 In general appearance similar to Ephydra. Front broad, 

 flat, slightly oblique but little depressed ; vertical bristles weak, 

 only two orbitals, near vertex; frontal plate extending for- 

 ward beyond line of facial orbits, with a widely separated 

 pair of proclinate converging setulae at anterior margin. Face 

 in general projecting but more prominent at the medial hump 

 between the distinct antennal foveae, in profile slightly con- 

 caved and retreating ; evenly clothed with fine hairs ; a tuft of 

 very long down-curved bristles on the medial hump. An- 

 tennae short ; second joint large, swollen ; third rounded. Meso- 

 notum nearly destitute of bristles except marginally ; dorso-cen- 

 trals represented by four short hair-like bristles hardly differ- 

 entiated from the pile; acrostichals wanting; prescutellars 



