206 PROF. M. BEZZI. 



28(27 

 29(38 



30(37 



31(32 



32(31 

 33(36 

 34(35 

 35(34 

 36(33 



37(30 



38(29 



39(40 



40(39 

 41(42 



42(41 

 43(44 



44(43 



Abdomen entirely shining. 



End of the abdomen in the male without special conformation and without 



prominent genitalia.* 

 Plumosity of the arista not twice as broad as the third antennal joint, with 



straight plumules. 

 Wings brownish, darker on the fore border and apical half. 



albisqiimna, Kert. 

 Wings hyaline or more or less deep yellowish. 

 Species of greater size (4-5 mm.), with deep yellow wings. 

 Frons of the female with 3 longitudinal furrows . . cyaneonitens, Kert. 



Frons of the female with 2 furrows only . . . . hisulcata, sp. nov. 



Species of smaller size (3 '5 mm.), with hyaline or slightly yellowish wings ; 



frons of the female not distinctly sulcate . . filifera, Bezzi. 



Plumosity of the arista twice as broad as the third joint, with undulate 



scattered plumules . . . . . . . . . . flumosissima, Bezzi. 



Abdomen of the male at end with special conformation or with prominent 



genitaha. 

 Last abdominal segment of the male twice as long as the preceding one, 



deeply excised at end and there with the 2 points clothed with long bristly 



hairs ; hypopygium small . . excisa, Kert. 



Last abdominal segment not so elongate and not excised at end. 



Last abdominal segment simple, but with long black hairs at sides, ciliated ; 



hypopygium small and not prominent below, but with a horizontally 



produced middle appendage . . . . . . setifera, de Meij. 



Last abdominal segment not specially ciliated at sides ; hypopygium very 



prominent below. 

 Hypopygium properly small, but the last two ventral segments inflated 



and prominent in the shape of a rounded protuberance. 



gibbosa, de Meij. 

 Abdomen at end not gibbous beneath, but the genitalia prominent in the 



shape of a broad and stout appendage, which is bilobate at end 



lucenSy de Meij. 



1. Lonchaea (Lamprolonchaea) aurea, Macq. 1851. 

 Lonchaea splendida, Loew, 1873. 



Lonchaea metatarsata, Kertesz, Term. Fiizet., xxiv, 1901, p. 83 ; de Meijere, 

 Tijds. V. Ent., li, 1908, p. 133 ; liii, 1910, p. 117 ; Iviii, 1915, p. 90 ; 

 ]x, 1918, p. 350 ; Edwards, Trans. Zool. Soc, xx, 1915, p. 422. 

 This little fly seems to be the most widely spread species of its genus ; in the 

 Orient it is recorded from South India. The synonymy with metatarsata is quite certain, 

 as I have seen a specimen from Batavia [Jacobson) in the Indian Museum, deter- 

 mined by Prof, de Meijere. L. metatarsata was originally described from New 



* Of cyaneonitens and hisulcata only the females are known ; the males are here assumed 

 to have a simple abdomen. 



