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441. 

 OXYCERA MORRISII. 



Order Diptera. Fam. Stratiomydse. 



Type of the Genus, Stratiomys trilineata Fab. 

 OxYCERA Meig., Lat., Curt. — Stratiomys Fab., Panz. — Odontomyla 

 Lat. — Musca Linn. 



Antenna inserted below the middle of the face, contiguous, ap- 

 proximating, porrected, shorter than the head, 8-jointed, 1st and 

 2nd joints pilose, the former cylindric, the latter larger and cup- 

 shaped, 4 following forming an elongate-conic mass, 3rd joint 

 the largest, 7th inserted beneath the upper margin of the 6th, 

 small ovate, 8th a short stout bristle (3). 

 Labrum short, broad, hollow and emarginate at the apex (lb). 

 Tongue, Maxilla and Mandibles none. 



Palpi short, linear, membranous and compressed, thickened 

 opaque and pubescent at the apex (f). 



Labium fleshy, terminated by 2 ovate hairy lobes, transversely 

 striated beneath (g). 

 Trophi received into a groove at the bottom of the face. Head short 

 semiglobose. Eyes lateral and oval. Ocelli 3 in triangle, placed 

 round a slight protuberance on the crown of the head (2, the head in 

 profile). Thorax not broader than the head, subovate. Scutellum 

 transverse, producing a curved spine on each side (A, the thorax and 

 scutellum in profile) . Abdomen considerably broader than the thorax 

 short and suborbicular. Wings horizontal and decumbent in repose, 

 iridescent, with a subovate cell in the disc, from which issue 4 ner- 

 vures, in rays, sometimes very faint (9) . Halteres short with a large 

 club. Legs equal in size. Thighs simple. Tibiae a little thickened 

 at the middle forming an obscure notch on the inside. Tarsi 5- 

 jointed, basal joint the longest, 4th the smallest, 5th with some 

 bristles at the apex. Claws acute. Pulvilli small. 



MoRRisii Dale's MSS. — Curt. Guide, Gen. 1217. 



Black, shining, thickly and minutely punctured and clothed with 

 very short gray pubescence : labium ochreous : eyes reddish 

 brown with a whitish ring, interrupted at the top : a whitish 

 line on each side of the thorax forming a minute sj)ot at the 

 anterior angle, a larger one before and another behind the base 

 of the wing ; apex of scutellum and the spines ochreous : abdo- 

 men with an oblique spot on each side the 3rd and 4th seg- 

 ments, smaller on the latter and a triangular spot at the apex 

 of the same pale ochreous colour : wings transparent, the stigma 

 yellowish brown, the costal and basal nervures only coloured 

 with brown ; halteres white : Legs ochreous ; thighs black, ex- 

 cept at the base and tips, posterior tibiae black, except at the 

 base : Tarsi black, excepting the basal joints of the 4 posterior 

 which are whitish. 

 In the Cabinets of Mr. Dale, Mr. Morris, and the Author. 



