200 PROF. M. BEZZI. 



2(3). Cheeks smooth ; tarsi with the 3 or 4 terminal joints black ; base of wings 

 and squamulae yellowish . . . . . . . . . . mochii, Bezzi. 



3(2). Cheeks rugose ; only the last tarsal joint black ; base of wings and squamulae 

 blackish . . . . . . . . . . . . phaeolepis, sp. n. 



4(1). Antennae longer, usually very long, closer together at base and inserted at 

 or distinctly above the middle of the eyes ; eyes bare ; head not or only a 

 little broader than the thorax, with less widened frons in the female, 

 and with well developed macrochaetae ; lunula small, usually less visible 

 and less or not hairy ; cheeks and jowls less broad, usually very narrow ; 

 mesopleurae anteriorly with some strong macrochaetae, which are curved 

 forwards ; wings longer than the body, with the second costal cell dilated 

 outwardly and usually with the sixth vein with a long spurious con- 

 tinuation. 



6(16). Arista bare or only microscopically pubescent ; only one sternopleural 

 macrochaeta present ; tarsi always yellow at base ; squamulae whitish and 

 with pale cilia. 



6(7). Entire body, except head, of a very glistening green, more or Jess golden ; 

 antennae short, with the third joint at most twice as long as the basal 

 joints toge;her ; jowls rather broad ; only the basal joint of all the tarsi 

 yellow, with a black tip ; first posterior cell distinctly narrowed at end ; 

 sixth longitudinal vein not at all continued (subgen. Lamprolonchaeay 

 nov. ) . . . . . . . . . . . . . . aurea, Macq. 



7(6). Body of a shining bluish-black or black colour ; 2 or 3 basal joints of tarsi 

 yellow ; first posterior ceU not narrowed at end ; sixth longitudinal vein 

 with spurious continuation (subgen. Lonchaea, s. str.). 



8(11) Antennae rather short, extending only a little below the middle of the face, 

 wit the third joint at most twice as long as the basal joints together ; 

 jowls rathe- broad. 



9(10). Vibrissae not longer than usual; wings yellowish hyaline . . . claripenniQ, 



Macq. 

 10(9). Vibrissae long and strong ; wings brownish . . . . vihrissifer, Lamb. 



11(8). Antennae long, extending to the epistome, with the third joint many times 



longer than the basal joints together ; jowls linear. 

 12(13) Tarsi with only the basal joint yellow ; third antennal joint extending below 



the mouth-border ; wings brownish . . . . . . lamhiana, Bozzi. 



13(12). Tarsi with 2 or 3 basal joints yellow; third antennal joint not extending 

 below mouth-border ; wings hyaline, or faintly yellowish on fore half. 



14(15). Antennae quite black ; wings slightly yellowish on fore half 



continentalis, sp. n. 



