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245. 

 SEPSIS ANNULIPES. 



Order Diptera. Fam. Muscidae Lat.^ Leach..) Meig. 



Ttjpe of the Genus Musca cynipsea Linti. 



Sepsis Fall, Meig. — Micropeza Lat. — Tephritis Fab. — Musca Lmi., 

 Fab., Panz. 



AntenncE small, inserted at the upper part of the face, nutant, 

 4-jointed ; basal joint small, 2nd much larger, both somewhat 

 cup-shaped, 3rd very large oval compressed and pubescent, 4th 

 forming a naked seta, inserted near the base of the 3rd on the 

 upper side (3)'. 



Trophi received into a cavity at the bottom of the face (2*). 

 Labrum horny, short, broad and hollow(l, b)^ receiving the 

 Tongue which is shorter, obtuse and very broad at its base (c). 

 Mandibles and Maxillce none. Palpi as long as the labrum, slen- 

 der, cylindric, fleshy and producing a few long rigid bristles (f). 

 Lip large, fleshy, pilose, the terminal lobes wrinkled (g). 

 Head large globose (2), slightly depressed in front. Eyes very large, 

 round and remote. OceWi forming a large triangle on the crown of 

 the head. Hypostoma. flat {2* front view of the head). Thorax 

 somewhat oval. Scutellum small. Abdomen rather long slender, 

 subcylindric and clavate, more robust in the females, the apex incurved 

 with 2 curved bristles under the 2nd joint in some males. Wings 

 rather short and narrow, carried erect and vibrating. Halteres di- 

 stinct, remote from the wings, globose at the apex. Legs long, an- 

 terior pair the shortest. Tibiae notched on the internal side in some 

 males. Tarsi 5-jointed, basal joint long, terminal one short. Claws 

 simple. Pulvilli distinct. 

 Obs. The dissections were drawn from S. cylindrica Fab. 



Annulipes Meig. Syst. Besch. v. 5. p. 292. n. 16. 



Male smooth, shining, black with a bluish cast. Abdomen with 

 a spine beneath near the apex, very glossy, especially the 2 basal 

 joints which are cupreous. Wings iridescent, aureous, fuscous 

 towards the costa. Halteres white, black at the base. Legs 

 pubescent. Coxae and base of thighs ochreous ; tibiae fuscous j 

 tarsi very black. Anterior legs with the thighs slightly produced 

 beneath towards the middle, from whence arise an acute spine 

 and a bristle, and a longer spiny bristle at the base ; the tibiae 

 notched on the inside and armed with 2 small teeth. Interme- 

 diate legs with the 1st and 2nd joints of the tarsus dilated, white 

 at their base. Posterior tibias with a long interrupted channel 

 on the outside (fig, Sf), 

 Female less brilliant, and all the legs are simple. 



In the Cabinets of Mr. Haliday and the Author. 



