248 CHARLES W. JOHNSON. 



liiiid border of each segment on the underside adorned with a yellow stripe, 

 which is widened in the middle. Legs black, clothed with short tawny hairs: 

 shanks tawny towards the base ; feet tawny ; hind shanks. tawny, with two black 

 bands. Wings brown, wing-ribs piceous ; veins ferruginous ; jioisers tawny, with 

 apple-green knobs. 



" Fem. — All the facets of the eyes very small ; hind border of scutcheon tawny ; 

 sides and hind borders of the segments of the abdomen tawny, its upper side also 

 adorned with a short tawny stripe at the tip. and a large tawny spot on each side 

 of the base ; feet piceous above : claws black, tawny at the base ; knobs of poisers 

 tawny. Length of the body 6-6.5 lines ; wings 10-11 lines (Walker). 



St. Martin's Falls, Albany River, Hudson's Bay. 



Stralioniyiii siiiiple.i^ Bigot. 



SlraUomys simplex Bigot, Ann. Sbc. Ent. France, xxxvii, 24. 



" 9 . Long. 8 mill. 



" Nigra ; facie, fronte, thorace, scutello, parce cinereo-flavido villosis et tomento 

 flavido intermixto ; spinis scutelli testaceis, apice fuscis ; halteribus testaceis, clava 

 prasimi; abdomiue fere nudo, flavido anguste circnmdato, segmentis 2. 3 et 4'*. 

 utrin(iue, apice, vittaflavida, angusta, notatis, ventre prasino flavescente: femori 

 bus nigris, albido tomentosis, tibiis, fusco annulatis, fulvis, tarsis fuscanis, basi 

 late fulvis; alis fere hyalinis, macula stigmaticali fulva, venis fulvo pallido lim- 

 batis. Antennarum segmento 1° abbreviate." 



" Noire. Face, front, thorax, ecusson, converts d'une villosite gris jaunatre, 

 m61augee d'un fin duvet squamnieux egalement jaunatre, flancs a polls gi-is ; 

 epines de I'ecusson testacees, a pointe brune ; balanciers testaces. a massue verte ; 

 abdomen a pen pros nu, finement horde de-fauve, 2"^, 3« et 4^ segments avec, de 

 chaque cote de I'extremite une demibande etroite. jaune, ventre d'un jaune ver- 

 datre; cuisses noire, a duvet blanchatre, genoux et tibias fauves, ainsi que la base 

 de tous les segments tarsieus, un anneau brun, etroit, sis vers le milieu des tibias 

 Premier segment des anteunes relativement court. 



" Texas, Colorado, 3 specim." 



OnONTOMYIA. 



Odonfomyia Meigeu Klassific, etc., i, 128, 1804. 

 Stratiomys in part, of early authors. 



Rather large, color variable, green or yellow with black markings, 

 or black, with green and yellow markings. Males and females, as a 

 rule, vary considerably in appearance. Head hemispherical, eyes of 

 the male contiguous, but broadly separated in the female ; ocelli 

 prominent, face roimded or somewhat prominent and slightly cari- 

 nate. Antennae inserted near the middle of the head, variable ; first 

 joint less than three times the length of the second, third longer 

 than the first and second together, more or less taj^ering, without 

 style or bristle, and composed of five annuli. Thorax subquadrate 

 and pilose in the male, (|uadrate and tomentose in the female; scu- 

 tellum ])rominent, with two spines. Abdomen ovate, flattened, and 



