384 The Philippine Journal of Science 1923 



transverse wrinkles ; the length is three-fourths that of vertex, 

 the anterolateral margin into width somewhat more than four 

 times ; the hind margin broadly incurved. Tegmina with a teat- 

 like extension of the exterior apical angle very strongly marked 

 in the female (Plate 3, fig. 28, 6), less so in the male; appendix 

 apically broad and conspicuous as compared with the narrow 

 and inconspicuous appendices of other species. Subgenital plate 

 with hind margin subtruncate, slightly bisinuate. 



Luzon, Laguna Province, Mqunt Maquiling (Baker). The 

 most beautifully marked of the species herein treated and 

 remarkable for the highly developed and unique sexual differ- 

 ences. It will be noted that the sexual differences here are 

 much more profound in both structure and coloration than are 

 given by Distant to separate the "species" K. thoracica from 

 K. ramificata and K. illuminata from K. signata, for which are 

 given no sexual or structural characters not within the bounds of 

 sexual differences usual in this genus. 



Genus NIRVANA Kirkaldy 

 Kirkaldy, The Entom. 33 (1910) 293. 



Type, Nirvana pseudommatos Kirkaldy (Ceylon). 



Without a careful study of the type species, which I do not 

 possess, it is impossible to be certain of the limits and position 

 o± this genus. The description of Kirkaldy is entirely inade- 

 quate, as to both genus and species, to distinguish it certainly 

 among the great number of Oriental forms, without specimens 

 for comparison. Melichar, in working up the Homoptera of 

 Ceylon, did not have Kirkaldy's species but considered N. pallida 

 Melichar as certainly congeneric and amended the generic de- 

 scription from that species. Two Far Eastern species, N. philip- 

 pmensissv. nov. and N. placida Stal, are certainly congeneric 

 with pallida (indeed, pallida is probably synonymous with pla- 

 cida), so that I have taken these two species as typical of true 

 Mrvana. They agree fairly with descriptions and with Meli- 

 cnars figures. Nirvana suturalis Melichar is doubtfully conge- 

 neric as is also N. insignis Distant. Nirvana decora Melichar 

 may be a Kana. Three of Distant's species, N. greeni, N. longi- 

 tudinals, and N. linealis, appear to belong to Pseudonirvana; the 

 second certainly does. 



Synopsis of species. 

 a 1 . Tegmina with a small fuscous dot at base of s 

 area with two oblique fuscous stripes; verte 



