166 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Skr. 



Fucorum possesses the generic characters given above for maritima, as 

 well as most of the specific characters of that species. The general color 

 is darker; the palpi and legs are wholly black and the front dark brown; 

 front wider, almost half the head ; parafacials wider, and with a change- 

 able dark pollinose spot beside the base of antenna ; vibrissa higher above 

 lower edge of head; bucca wider, about Yz the eye-height; middle tibia with 

 a seta on inner front side, one or two on outer front, and two on outer hind 

 side ; middle femur with an even row of about 12 short bristles along upper 

 front side ; hind femur of male with a basal meso-ventral protuberance 

 which is slightly enlarged at tip and bears very minute spines; just laterad 

 of it is a tuft of larger stout hairs or small bristles. Hypopygium small ; 

 a male from Douglas, Alaska, shows the parts somewhat protruded ; in 

 this the second segment of the hypopygium has a deep median groove 

 behind, dividing it into two lobes; the lateral lobe of the fifth sternite is 

 angular and slightly notched mesially near its base, the median emargina- 

 tion of the sternite yellow, with a small yellow point in the center. In a 

 Friday Harbor specimen the emargination and point are brown, the rest 

 retracted. 



Length 4.3 to 6 mm. 



Forty-five specimens, both sexes; eight from Donokis, 

 Alaska (Eldred Jemie) ; 27 from Vashon Island, ^^'nsll. 

 (Melander) ; one from Seattle, Wash. (O. P>. Johnson) ; one 

 from Tokeland, Wash. (R. W. Doane) ; and eight from Fridnv 

 Harbor, Wash. (Aldrich). 



I have also seen a long series collected at Kodiak Tslaiid 

 and Katmai, Alaska, bv Professor Hine in 1917. 



3. Fucellia costalis Stein 



(Fig. 5) 



Stein, Wiener Ent. Zeitung. xxix, 21, 1910. — I\Tonlcrev, 

 Cal. 



Cole, First Report Laguna Marine Laboratory, p. 156, 1912. 

 DC. at Laguna, Cal.. and notes. 



Male: Front black with thin brown pollen, as wide at vertex as one eye, 

 narrower toward antennae ; two verticals, one ocellar, two small behind 

 ocelli, three frontals curving outwardly, five smaller below curving to the 

 middle ; lower part of the narrow parafrontal with a few small hairs in a 

 row; parafacial and bucca silvery pollinose, the former % as wide as the 

 length of the third antennal joint, the latter 2/5 as high as the eye and 

 bearing one row of bristles at lower edge; antenn?e black, third joint Wt, 

 times the second and rather tapering, arista thickened on basal fourth ; 

 vibrissae rather high above lower edge of head; palpi black; proboscis 

 short, black, fleshy; back of head with numerous black hairs, the occiput 

 however conspicuously bare. 



Thorax as in marlt'nna except that the acrostichals are small and 

 irregular, some outside the two rows, and the dorsal surface is quite 

 generally covered with small hairs among the bristles, not present in 

 maritima; prescutellars distinct ; prothoracic three, mesopleura hairy ex- 



