172 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Sir. 



8. Fucellia antennata Stein. 



(Fig. 7) 



Stein, Wiener Ent. Zeit., xxix, 23, 1910.— Sitka, St. Pan! 

 Island, and Karkik, Alaska. 



Male and female : Black with opaque gray pollen, wliich has a glaucous 

 or bluish cast. Front in male, .483, in female .515 of head width (one of 

 each sex) ; frontal stripe brown, with brown pollen; bristles of head as in 

 maritima, but only two lower, incurved frontals ; antennse black, the third 

 joint distinctly longer and wider than in other species, reaching almost to 

 the vibrissje ; parafacials rather narrow, bucca almost as high as the eye, 

 which is nearly round ; facial ridges yellowish, pollen of bucca smooth and 

 gray; palpi black, ordinary; proboscis black, small; back of head bulging, 

 with scattering hair. 



Thorax with same chaetotaxj' as in maritima, except that the scutellum 

 has only a single very distinct row of hairs well down on the edge ; 

 prealar distinct, but only a third as long as supraalar; behind the suture 

 are only a few hairs laterally; the pale spot below the humerus is indis- 

 tinct ; lower stpls very small ; calypters pale, rim and rather heavy fringe 

 concolorous ; halteres yellow. 



\ \ Fig. 7. Fucellia antennata, J 



\^vfyj outer side hind femur of male. ' 



Abdomen hardly tessellated, of ordinary structure; in the female the 

 fourth segment longer than the preceding; male hypopygium of moderate 

 size, black; fifth sternite rather erect, with large lateral lobes forming 

 more than half a circle, within them a deep cavity, in the single specimen ; 

 second and third tergites together in male longer than first, fifth tergite 

 not visible. 



Legs black, trochanters reddish ; front tibia with one seta in front ; 

 middle tibia with one on outer front, one on outer hind, on inner front the 

 male has one, the female two; hind tibia with three behind, four on outer 

 hind, female has two on outer front which are absent in male; middle 

 femur with erect row of about 7 small slender bristles on hind side below, 

 stopping just beyond middle, the same in both sexes; hind femur with 

 usual row above in both sexes, in the male a very characteristic row of 

 about 13 on lower outer edge, beginning before the middle, very straight 

 and even and close together ; the last in the female are fewer, onb' about 

 7, and ordinary in appearance. 



Wing hyaline, costal spines and setules very minute. 



Length, of male 3^ mm. ; of female, 5 mm. 



Twenty specimens, both sexes; five from Douglas, AlasK-a, 

 August, 1901 (Eldred Jenne) ; one from Katmai. Alaska, in 

 1917 (Hine) ; 13 from ilwaco. Wash., in May and July, 19] 7 

 (Melander) ; and one from Tacoma, Wash. 



