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Genus MEDINA Desv. 



Medina Desvoidy, Essai sur les Myodaires, p. 138; 1830. 



D((jecrhi Meigeu, System. Besch. Europ. Zwei. lusekten, Vol. \II, p. 249; 1838. 



Amedoria Brauer and Bergenatararu, Zweif. Kais. Mus. Wieu, IV, p. 10(3; 1889. 



The synonymy of the first two is according to Schiner.' Brauer and 

 Bergenstamin state- that Desvoidy pUxeed in Medina species belonging 

 to Admontia and Degeeria, but they do not specify which of these spe- 

 cies belong to Admontia. Since all of the recognized species placed in 

 Medina by Desvoidy at the time of describing this genus belong to 

 Degeeria, there would ap]iear to be no doubt concerning the identity of 

 these two genera. The identity of Amedoria with Degeeria has already 

 been acknowledged by Brauer and Bergeustamm.^ Our single species 

 is black, with a brown tinge, the calypteres yellow, the wings strongly 

 tinged with brown at the base and in front of the fifth vein; three post- 

 sutural and three sternopleural macrochtet*, discal macrocha^tse on the 

 last tliree segments of the abdomen; length, 9 mm. From the tyi)e 

 specimen. Mount Washington, New Hampshire. (Journal N". Y. Eut. 

 Soc, Vol. Ill, p. 104 ; Sept., 1895 : Degeeria.) washingioiuv Coq. 



Genus SCHIZOTACHINA Walk. 



A'f//)-^ofrtc/(/rm Walker, Iiisecta Sanndersiana, Vol. I, p. 2G4; 1856. 



Our single species is black, the antenna*, sometimes largely, and the 

 palpi, yellow; three jiostsutural and two large and two small sterno- 

 pleural macrocha'ta^, second and third segments of abdomen bearing 

 only marginal ones; wings hyalinefthird vein bearing a single bristle 

 at the base; length, 4 to mm. Horseneck Beach, Mass.; Waco, Tex.; 

 and Colorado. (Insecta Saundersiana, Vol. I, p. 276; 185G: TacMna. C,^ ^ 

 Tachina exid Walker, loc. cit., p. 277.) convecta Walk. 



Genus CLAUSICELLA Rond. 



ClanaiceUa Rondani, Dipterologia' Italicio Prodromus, Vol. I, p. 61; 1856. 



Our species have three postsutural and three sternopleural macro- 

 cha'ta', body black, the abdomen sometimes with a brassy or violaceous 

 tinge, bearing only marginal macrocha^t*: 



1 . Wings wholly hyaline, orbital bristles present in both sexes 2. 



Wings from base to tip of auxiliary vein whitish, thence to tip of 

 second vein brown, the apex and hind margin behind the fifth 

 vein hyaline, third vein bearing a single bristle near its base; 

 black, the abdomen with a strong violaceous tinge; front of 

 female one and one-tliird times as wide as either eye, two pairs 



'Fauna Austriaca, Vol. I, p. 533; 1862. 

 2Zweif. Kals. Mns. Wieu, VI, p. 232; 1893. 

 3Zweif. Kais. Mus. Wien, V, p. 356; 1891. 



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