1()2. 

 MEDETERUS NOTATUS. 



Order Diptera. Fam. Dolychopodce Lat.^ Leach. 



Type of the Genus Dolichopus regius Fah. 



Medeterus Fisch., Meig. — Dolicho])us Lai., Fab., Fall. — Hydropho- 

 rus Fall. — Musca Fab., Paiiz. 



Antennce inserted rather above the middle of the face, approxi- 

 mating, shorter than the head, 5 -jointed, basal joint pyriform 

 truncate, '2nd transverse, surrounded by strong bristles, ord com- 

 pressed very pubescent, conical, emarginate near the apex, 4th 

 joint inserted on the side of the 3rd, forming with the 5th a seta, 

 which is very long and naked (fig. 3), 



Labrum very horny, attenuated and pubescent at the apex (*), 

 furcate near the middle (B,b), dentated near the base. 

 Tongue very horny, flat, dilated at the base (B^c). 

 Mandibles and maxillce none. 



Palpi lying close to the clypeus (2*, f), lamelliform, rigid, pi- 

 lose (If). 



Lip large short bilobed ( 1 g) . 

 Head subglobose. hip projectbig. Clypeus subtrigonate (1 a i?f2'^a). 

 Eyes lateral very long. Hypostoma narrower in the males than fe- 

 males. Ocelli 3 in triangle. Thorax subquadrate. Scutellum small, 

 semicircular. Abdomen linear, clavate, producing 2 incurved, hairy 

 appendages beneath in the males (7) : somewhat conical in the fe- 

 males. Wings much longer than the body incumbent, parallel con- 

 taining about 1 cells. Halteres small. Legs, middle and posterior 

 pair very long, the latter being rather more robust. Coccte, anterior 

 very long. Tibvee simple. Tarsi b-jointed, basal joint long, 2nd the 

 shortest, in the anterior pair of the males {in the type). Claws very 

 much bent. Pulvilli bilobed (8, afore leg). 



NoTATUs Fab. Ent. Syst. v. 4. p. 341. n. 120.— Meig. Syst. Besch. 4. 

 62.6. 



Female shining, naked. Head dull green, hoary behind, with 

 a few black bristles. Face slightly hoary. Eyes dull cupreous. 

 Thorax and scutellum of the same colour, the former very long, 

 hoary at the sides before the wings, with two blackish stripes and 

 2 rows of short bristles down the back and a sinuated line and a 

 few long bristles on each side. Abdomen very short, burnished, 

 aeneous and cupreous. Wings. fuscous, costal and a portion of 2 

 other cells pale ochre ; the black nervures are margined with 

 fuscous ; a spot upon a nervure near t\}e posterior margin and 2 

 others u]3on a transverse nervure blackish. Thighs cupreous, in- 

 crassated at the base of the anterior pair. Tibiae green. Tarsi 

 bluish black. 



In the Cabinets of Mr. Ilatchetl, Mr. Ingpen, and the Author. 



