DURHAM DIPTERA. 359 



L. 621. 



8 (9). Brown coloured species. (2671. obscura, Fin.) 



9 (8). Orange coloured species, with black abdomen. 



(2666. melanogaster, Mg.) 



10 (1). V.4 2 very little shorter than V.4 3 . 



11 (12). Small species, i|— 2 mm. (2667. fenestrarum, Fin.) 



12 (11). Larger species, at least 3 mm. 



13 (14). Dorsum dark brownish yellow. 



2669. Drosophila funebris, F. 

 Bishop Auckland, 1 $, April, 1902. 



14 (13). Dorsum bright orange. 



2668. Drosophila confusa, Stasg. 

 Gibside, 1 ?, June, 1898; Bishop Auckland, 1 $, 

 June, 1 90 1. 



625. Stegana, Mg. 



1 (2). Thorax wholly black. (2680. curvipennis, Fin.) 



2 (1). Thorax red-brown above, pale yellow below. 



(2679. coleoptrata, Scop.) 



Family LI.— CHLOROPIDyE. 



TABLE OP GENERA. 



1 (26). Costa ending at V.3. or a little beyond. 



2 (7). Third antennal joint lengthened. 



3 (4). V.3. bent upwards in front towards the fore margin ; 



arista thickened. 



629. Camarota, Mg. (2686. flavitarsis, Mg.) 



4 (3). V.3. straight; arista hair-like. 



5 (6). Antennae rather long, third joint pointed in front; 



hind femora much thickened. 



Platycephala, Fin. (628) 



6 (5). Antennas rather short, third joint round in front; 



hind femora not thickened. 



627. Eurina, Mg. (2683. lurida, Mg.) 



7 (2). Third joint of antennae a round disc. 



8 (9). Antennae inserted below the edge of the frons, and 



half hidden by it. 

 630. Selachops, Whlbg. (2687. flavocincta, Whlbg.) 



