I T,2 



MELANDER AND BRUES. 



[Vol. I. 



piceous with suffused , black border. Legs yellow, black from tip of first 

 tarsal joint. Hind tibiae incrassate slightly. Distal portion of fourth vein 

 with abrupt angle and with stump-vein. Cilia of tegulae black. 



Female. Somewhat smaller and with relatively longer wings. Stump- 

 vein at angle of fourth longitudinal present. Tegular cilia black. Fore 

 coxae with black hairs in front. The dilation of first antennal joint is less 

 prominent. The lower postocular ciha are also parti-colored but less flat- 

 tened than in the male. 



This species was described from a large number of specimens 

 collected in July, 1896, near Monterey, Cal. 



Consanginneits, var. propinqiiiis. Several interesting speci- 

 mens received from Mr. C. Livingston, from Corfield, Van- 

 couver Island, vary from the typical consanguineiis as follows,: 



Darker. All the coxae piceous ; femora piceous beneath 

 near base. Postocular cilia black, none of the orange-colored 

 cilia of the typical consangiiineus present, not so many of the 

 infraocular cilia flattened. Lamellae of hypopygium darker. 



Hygroceleui/uis ajfflictus O. S. 



Male. Length 6-6.5 mm. Face white, silvery. Antennae with yellow 

 expansion on inner side of first joint ; second joint with only a vestige of 

 yellow on the inner side. Pubescence of arista sparse but robust. Vertex 

 green. Postocular cilia black above for a long distance, descending nearly 

 to the middle of the eye ; below light yellow. Second abdominal segment 



bearing on each side near the middle a 

 tuft of long yellow hairs, directed back- 

 ward and reaching to the middle of the 

 fourth segment. Third segment with a 

 very small similar tuft. Hind tibiae 

 incrassate, with a broad shallow groove 

 on the inner side. Costal thickening 

 and incision at fifth vein of wing distinct. 

 Female. Length 5.5-6.5 mm. Face 

 gray, with a greenish tinge on the lower 

 part and slightly ochreous near the base 

 of the antennae. Antennae dark, first 

 and second joints in great part black. 

 Arista bare. Abdomen without any tufts of yellow hair. Anterior coxae 

 yellow, sometimes with a small posterior stripe dark. Hind tibiae completely 

 yellow. Wings yellowish anteriorly, costa not thickened, notch at tip of fifth 

 vein very pronounced. Tegular cilia black, yellow at the sides. 



Fig. 9. — H. afflktus: a, male ; /', femak. 



