BOMBYLIIDJE. 65 



The bifurcation of the second and third veins takes place at a greater 

 distance from the cross-vein, usually at an acute .ingle. . . 13 



2. Antenna! style distinct, that is it is separated from the third joint or 



from the styliform prolongation of the joint by a distinct suture. 3 



The third joint not with a distinct style separated by a suture, the style 



when present very minute. . ' 8 



3. Antennal style with a pencil of hairs at the tip; pulvilli distinct; front 



tibiae with bristles. . ". . . . . . . 4 



Antennal style not terminating in a pencil of hairs; three or four sub- 

 marginal cells present. . . , . . . '. . 5 



4. Outer submarginal cell bisected by a cross-vein (Spogostylum Coquil- 



lett non Macquart). ... .. . . . COQUILLETTIA, nov. 



Outer submarginal cell not bisected by a cross-vein, the anterior branch 

 of the third vein sometimes connected with the second by a cross- 

 vein (Argyramoeba Schiner). . . SPOGOSTYLUM Macquart. 



5. Pulvilli distinct ALDRICHIA Coquillett. 



Pulvilli rudimentary or wanting 6 



6. The outer submarginal cell divided by a cross- vein, making four sub- 



marginal cells. . . . . HYPERALONIA Rondani. 



The outer submarginal cell not divided by a cross-vein. . . 7 



7. First posterior cell bisected near its middle by a cross-vein. 



EXOPTATA Coquillett. 

 First posterior cell not bisected ; posterior claws with a basal tooth. 



EXOPROSOPA Macquart. 



8. Eyes of male contiguous at the vertex ; anal cell closed. 



ASTROPHANES Osten Sacken. 

 Eyes of male not contiguous at the vertex; anal cell open. . . 9 



9. Anal cell widest at its middle. ....... 10 



Anal cell widest at the margin. . . . . MANCIA Coquillett. 



10. The second vein strongly contorted at the end in the shape of a recum- 



bent letter S ; three submarginal cells present. 



DIPALTA Osten Sacken. 

 The second vein not strongly contorted at the end. . . .11 



11. Three submarginal cells normally present; proboscis elongate. 



STONYX Osten Sacken. 

 Two submarginal cells normally present. . . . . .12 



12. The contact of the discal cell with the third posterior not much longer 



than its contact with the fourth posterior; proboscis long; sides of 

 the abdomen with fringe of scales and not with hairs only. 



LEPIDANTIIRAX Osten Sacken. 



