729. 

 NEMOTELUS NIGRINUS. 



Order Diptera. Fam. Stratiomydae. 



Type of the Genus, Musca Pantherina Linn. 



Nemotelus Fab., Meig., Macq., Curt. — Stratiorays Fab. — Musca 

 Linn. 



Antenna inserted far before the eyes, at the base of the clypeus, 

 contiguous, porrected and divaricating, clothed with very short 

 • hairs, 8-jointed, basal joint oblong, 2nd the longest, pyriform- 

 truncate, the 4 following forming an ovate-conic mass, 3rd 

 transverse-obtrigonate, the base truncated, 2 following cup- 

 shaped, 6th conical, 7th minute ovate, 8th slender and tapering, 

 the apex producing a bristle with 2 or 3 others on the sides (3). 

 Labrum horny, stout, hollow and obtuse (lb). 

 Tongue, Mandibles, Maxilla and Palpi wanting. 

 Mentum elongated, geniculated (1). Lip twice as long, slender 

 and forming two very long lobes, the edges membranous, slightly 

 bristly (^r). 

 Trophi received into a long cavity in the face. Head narrower than 

 the thorax, horizontal : clypeus porrected and conical, most elon- 

 gated in the females (2 $ ) .• eyes large and meeting above in the 

 males ( c? ), very remote and much smaller in the females : ocelli 3, 

 forming a triangle on the crown. Thorax oblong -ovate : scutel 

 sublunate, not spined. Abdomen orbicular or ovate, slightly con- 

 vex, the apex incurved and pointed. Wings horizontal and incum- 

 boit in repose, much longer than the body, with a somewhat ovate 

 discoidal cell producing 4 very faint nervures, the costal and basal 

 nervures much stronger (9) .• halteres clavate, the club globose. 

 Legs moderate : thighs simple : tibiae simple, slender at the base, a 

 little curved: tarsi longish, intermediate the shortest, 5 -jointed, 

 basal joint the longest, 4th the shortest, 5th short and a little dilated: 

 claws short and stout : pulvilli bilobed. 



NiGRiNUs Fall. — Curt. Chiide, Gen. 1215. 3. 



Shining greenish black, slightly cupreous : antennae and eyes 

 brownish : thorax punctured, with a plain space in front and 

 down each side : abdomen punctured : wings white, iridescent, 

 nervures scarcely visible, excepting the costal and discoidal 

 ones which are ochreous ; halteres, tips of thighs, tibiae and 

 tarsi ochreous, apex of latter fuscous : anterior tibiae with a 

 brown spot towards the apex, posterior black, excepting the 

 base and tip. 



In the Author's and other Cabinets. 



