MACROGLOSSUM. 349 



Key to the Species. 



Imagines. 



1. Hind wing underside greyish -white at base 



like breast; upperside with yellow band ; [p. 353. 



abdomen with yellow side-patches .... M. bombylans (Boisd.), 

 Hind wing underside reddish-tawny, or 

 yellow at base, or with a yeUow patch 

 before inner margin 2. 



2. Costal margin of hind wing dilated into [p. 386. 



an antemedian lobe M. aquila (Boisd.), 



Costal margin of hind wing simple 3. 



3. A band from middle of costal margin of 



fore wing to hind angle ; no distinct [p. 390. 



antemedian and discal lines M . hemichroma (Butl.), 



No such band 4. 



4. Head and thorax with two broad grey 



stripes contrasting strongly with the 



greenish olive-black colour of head and [(Butl.), p. 393. 



thorax M. mitchelli imperator 



Head and thorax not so 5. 



5. Basal area of fore wing upperside black or 



greenish-black, sharply limited by the 



straight antemedian band 6. 



Basal area much paler than antemedian 

 band 7. [p. 392. 



6. Abdomen underside brown M. faro (Cram.), 



Abdomen underside tawny M . passalus rectifascia 



7. Hind wing with very narrow tawny-brown [(Feld.), p. 391. 



border ; abdomen with creamy-white [p. 352. 



side-patches M. stellatarum (Linn.), 



Hind wing with more or less broad tawny 

 or black border, or nearly entirely black. 8. 



8. Hind wing tawny, without yellow band ; or 



if such a band present, then distal border 



gradually shading off proximally 9. 



Hind whig with sharply denned brownish- 

 black distal border, often produced basad 

 in middle ; or the yellow band vestigial . . 14. 



9. Hind whig tawny ; fifth abdominal seg- 



ment without yellow side-patch 10. 



Hind wing with yellow-tawny band 11. 



10. Antemedian band of fore wing filled hi with [p. 355. 



black M. regulus (Boisd.), 



Antemedian band of fore wing not filled [p. 356. 



in with black M. gyrans (Walk.), 



11. Fore wing upperside with a sharply de- 



fined grey costal discal area ; ante- [& Jord., p. 362. 



median band very oblique M. paHicolor Roths. 



Not as above 12. 



12. Yellow abdominal side-patches separate. . 13. [p. 360. 

 Yellow abdominal side-patches confluent . M. affictitia (But!.), 



13. Brown post-discal spot SC-'-R 1 of fore whig [p. 368. 



upperside very prominent M . assimilis Swains., 



Brown post-discal spot SCMrt 1 not promi- 

 nent M. belis (Linn.), p. 365. 



14. Fore wing upperside : discal lines not 



distinct ; no grey costal subapical area ; 



