542 A REVisiOK or the chiromyzini (diptera). 



text states "slig:htly wider."' The female specimen is described as having the 

 sixth abdominal sequent distinctly narrower than the fifth, and the seventh and 

 eighth narrower than the sixth, which character is typical of the Chiromyzini. 



The genus Allognosta can be distinguished from the genus Metopon/ia by the 

 abdomen of the male which is wider than the thorax and also relatively shorter 

 than in all other genera of the Chiromyzini. 



In Metoponia there are only seven annulations to the third antennal joint 

 (Macquart gives eight); in AUognosta these annulations are stated to be eight, 

 but the character requires confirmation. 



The following list contains the references to the original descriptions of the 



species placed under the genus AUognosta to which are added the references from 



works published subsequent to those given in Kertesz's catalogue. 



fuscitarsis, Say, Jouni. Acad. Nat. Se. Pliilad., iii.. 1823, p. 20 {Beris); Bezzi, 



Deut. Ent. Zeit., 1908, p. 474. [United States of America.] 



dorsalis, Say, in Long's Exped. St. Peter's River, ii., appendix, 1824, p. 377 



[Sargus] 

 pallipes. Wiedemann, Auss. Zweifl. Ins., ii., 1830, p. 41 (Sargus) . 

 lata, Walker, List Dipt. Brit. Mus., i., 1848, p. 127; v., suppl. 1, 1854, p. 10 



(Beris ) . 

 brevis. Walker. List Dipt. Brit. Mus., i., 1848, ]i. 127 (Beris); v.. snp])l. 1, 

 1854, p. 10 (Bens). 

 similis, Loew, Berl. Ent. Zeit., vii., 1863, p. 299, d' (Metoponia) ; Bezzi, Deut. Ent. 



Zeit., 1908, p. 474. [United States of America.] 

 ohseuriventris, Loew, Berl. Ent. Zeit., vii., 18()3, p. 299, 9 ( Metoponia) ; Bezzi, 



Deuv. Ent. Zeit., 1908, p. 474. [Canada.] 

 vagans, Loew, Beschreib. Europ. Dipt., iii., 1873, p. 71 (^[etopofiia) ; Bezzi, 

 Deut. Ent. Zeit., 1908, p. 474. Brunetti, Faun. Brit. Ind., Dipt. Brachy., 

 i., p. 94, PI. 1, figs. 25-26, c?. [Europe. Asia.] 

 inermis. Brunetti, Rec. Ind. Mus., vii., 1912, p. 455, c7. (f AUognosta — Ana- 

 canthoheris) [India.] 

 harhieUinii, Bezzi, Deut. Ent. Zeit., 1908. p. 472. [Brazil.] 

 crassitarsis, de Meyere. Tijdschr. Ent., Ivi., suppl., 1913 (1914). \>. 19. [,Iava.] 

 erassa, de Meyere, Ti.idschr. Ent.. Ivi., suppl., 1913 (1914), p. 20. [.lava.] . 

 oi'samerhsis^ Brunett-. Fauna Brit. Ind., Dipt. Brachy., i., 1920, p. 95. [Assam.] 



Explanation op Pi.atks .\,\ix.-xxx. 

 Plate xxi.\. 



Pigs.1-4. — Meiop07!ia gemi7ia,n.sp. 1. female, from holotype; 2. male, from allotype; 



3. head of female holotype ; 4. antenna from a paratype male. 

 Figs. 5-6. — Afetopoitia riihricifis Macquart. .5. head, male; 6. antenna. 

 Pigs. 7-11. — C/iiroiiiy~a prisca Wallcer. 7, female; 8, head of female seen anteriorly; 



9, antenna of female; 10, male; 11, head of male seen anteriorly. 



Plate XXX. 



Figs.12-16. — Chiroviyza aiistra/is Macquart. 12, female; l.S, head of female seen anter- 

 iorly ; 14, antenna of female ; 1.5, male; 1(5. head of male seen anterioily. 



Figs.17-22. — Boreoides subiihita, u.sp. 17, female; 18. head of fem.ale .seen anteriorly; 

 19, antenna of female; 20, male; '21, head of male seen anteriorly; [22, antenna of 

 male. 



