108 BULLETIN 31, UMTED STATES NATIONAL MUSEUM. 



the ])Osterior part the bkick ground color almost wiiolly obsolete, or 

 for the greater part changed into a brownish color, in which variously 

 formed vittuhie and spots appear. Thorax dark metallic green, feebly 

 shining, with three, often indistinct, longitudinal black strii)es, and 

 yellow, entire, lateral stripes: scutellum yellow. Abdominal bands in 

 front and behind somewhat emarginate (ansgerandet), the first and 

 fourth sometimes interrupted by a black line. Face \vhitisli yellow, 

 with a mother-of-pearl lustre; front yellow; antenna? reddish-yellow, 

 at the tip sometimes brownish. Legs reddish-yellow, tarsi somewhat 

 darker; hind tibiae on the distal half thickly beset below with short, 

 blackish bristles. Wings hyaline, scarcely tinged with brownish-yel- 

 low. 



9 . Front yellow , t he vertex black, extended as a median stripe nearlj^ 

 to the antennae. Abdomen broad and wholly black, with four yellow 

 bands, the first usually interru])ted, the following ones emarginate 

 behind, the fourth broadly interru-pted. — Schiner, 1. c, translation, 



The species is a very variable one, and verj- common throughout Eu- 

 rope. I give it on the authority of Mr. v. d. Wulp. I have not identi- 

 fied it with any certainty myself, the specimens designated by a under 

 (S. ci/Iindrica approaching it most closely, but differing in the abdomi- 

 nal bands being neither emarginate nor interrupted. 



Sphcerophoria dubia. 



Sphwrophoria (labia Bigot, Anu. Soc. Ent. Fr., 1884, 101. 



Habitat. — California. 



(?. Long. 7'""". Antenuis testaceis, apice infuscatis, fronte et facie 

 pallidissime flavis ; thorace nigro, parum a3nesceute; calyptris et hal- 

 teribus testaceis; abdomine fulvo, basi late, \ittis tribus transversis 

 latis, linea segmeuti quinti intermedia, brevi, maculis duo, ntrinque, 

 lunulatis, oppositis, sexti maculis similliinis, nigris; pedibus tlavis, 

 tarsis flavo obscuro tinctis. 



Antenues d'un fauve i)alc, bords suiierieurs et chete, bruns; face et 

 front entierement d'un blanc jauuatre; thorax d'un noir uu i)eu bronze; 

 cuillerons et balanciers test aces; abdomen fauve avec la base largement 

 noire, incisions des 2** et 3® segments, bords du 4% converts i)ar trois 

 larges bandes trans versales, noires, 5** avec nne bande dorsale et deux 

 macules en forme de croissant, oppos^es par leurs pointes, G*^ avec deux 

 macules semblables, le tout de couleur noire ; jneds d'un jaune assez 

 pale, tarses d'un brun clair, nn i)eu roussatre. Ailes ne depassant pas 

 I'abdomen ; face saillante, obtuse, calleuse; antennes, 3'^ segment i)resque 

 orbiculaire. 1 si')e(;im. — Bigot, 1. c. 



Sphcerophoria pyrrhina. 



Spharophoria piirrhina Bij^ot, Ann. Soc. Ent. Fr., ]^'84. 101. 



Eabita t. — C a 1 i {'ov\ i i a . 



c?. Long. (!""". Antennis fulvis, apice fuscis; facie fiava, callositate 

 fulva; thorace lenescente; calyi)trisfereaibis,halteribus flavis; abdomine 



