PLATYURA. 59 



Johannsen says a subcostal cross-vein is usually present and 

 illustrates it in one of his two figures (Gen. Ins. pi. iii, fig. 15) oi: 

 the genus, but it does not seem to be present in the species 

 examined by me ; it may, however, easily be overlooked. 



Zelmira, Mg. & (1800), is inadmissible, having been instituted 

 without a species. 



Table o 



1. Wing with more or less suffused tip, or else 



at least the veins distinctly suffused . . 2. 

 Wing clear grey or pale yellowish grey . . 8. 



2. Reddish brown species; very yellowish wing 



with brown tip grandis, sp. n., p. 60. 



Blackish or yellowish species 3. 



3. Wing-tip distinctly suffused 4. 



Wing-tip not distinctly suffused, but the 



principal veins suffused with dark [p. 60. 



brown suffusinei-vis, sp. n., 



4. Extreme tip of wing nearly clear 5. 



Extreme tip of wing equally suffused .... 6. [p. 61. 



5. Thorax wholly unicolorous apicipennis, sp. ii., 



Thorax with three blackish stripes affinis, sp. n., p. 62. 



6. Thorax brownish with three darker stripes . 7. 

 Thorax blackish, with a yellowish median 



stripe flaviventris, sp. n., p. 62. 



7. Thorax lighter brown, with three dark 



stripes, shoulders not conspicuously 



paler marginata, sp. n., p. 62. 



Thorax darker brown, with still darker 

 stripes, shoulders conspicuously pale 

 yellowish "..*... mcina, sp. n.,* p. 63. 



8. Abdomen with only two bands, which 



are white venusta, Wlk., p. 63. 



Abdomen with three or more yellowish 

 bands , 9. 



9. 'Abdomen eight-segmented octosegmentata, sp. n., 



Abdomen seven-segmented as usual 10. [p. 64. 



10. Thorax reddish yellow, with or without 



three dark stripes, sometimes nearly 



filling the dorsum 11. 



Thorax black or blackish, that is, the 

 ground-colour, apart from the three 

 stripes, which, if present, may be sub- 

 contiguous and occupy nearly all the 

 dorsum 13. 



11. Basal section of 4th longitudinal vein 



(i. e., anterior to the fork) one-third as 

 long as fork. Thorax wholly reddish 



yellow, unmarked 12. 



Basal section of 4th vein much less than 

 one-fourth the length of the fork. 

 Thorax reddish yellow, with three 

 dark stripes longifttrcata, sp. n., p. 65. 



* Possibly a variety of P. marginata. 



