23,4 Baker: Malayan Jassoidea 335 



aLaT^r r .* " t ' "■»> "«■ *** *" » as**- 



a 2 . Tegmina with a large round ... base of gecond apic&1 



cell; costal area with three oblique fuscous stripes; vertex and pro- 

 notum with a fine median black line; vertex largely smooth, sparsely 

 wrinkled anteriorly. N . philippinensis sp. nov. 



Nirvana placida Stal. Plate 4, figs. 29 and 30. 



Stal, Freg. Eng. resa Ins. (1859) 295 (Jassus sub Deltocephalns) . 



It was with no little pleasure that I collected in Singapore and 

 Penang large series of this species, described by Stal in 1859 

 and unrecognized since. Stal recorded it from Singapore and 

 Hongkong, and I have it also from Sandakan, North Borneo 

 Specimens received from Matsumura, collected in Formosa, and 

 bearing the name Nirvana pallida Melichar are the same species. 

 Matsumura also records it from Riu Kiu. 32 It appears to be 

 actually N. pallida Melichar, so far as can be judged from de- 

 scriptions and figures, though careful comparison should be made 

 with Ceylonese specimens. This species shows a strong sexual 

 dimorphism in the head (Plate 4, figs. 29 and 30), though the 

 tegmina m the two sexes are practically identical. 



The structure of this species is very similar to that described 

 below for N. philippinensis. Only the median basal portion of 

 vertex is smooth, the rest of the surface being occupied by 

 thick fine longitudinal wrinkling. The pronotum and scutellum 

 are smoother. The vertex in the male (Plate 4, fig. 30, a) is 

 a little shorter and more acute than in the female (Plate 4, 

 ng. 29, a). In a male tegmen (Plate 4, fig. 30, b) the two 

 oblique cross veins in subcostal area are distinct; in a female 

 tegmen (Plate 4, fig. 29, d) these are quite indistinguishable. 

 Nirvana philippinensis sp. nov. Plate 4, fig. 31. 



Very pale ochraceous; the delicate complete median carina of 

 vertex is black, and a median stripe a little paler in color con- 

 tinues across the pronotum and scutellum, and in some specimens 

 the full length of claval commissure; ocellus seated in an orange 

 spot. Tegmina milky translucent, three oblique fuscous stripes 

 over the corresponding cross veins in apical half of subcostal 

 area; a large orange spot covers apical portions of radial and 

 medial areas; apical submargin fuscous, this extending into outer 

 apical cell; a large round black spot at base of second apical 

 cell; extreme apex of clavus fuscous. Length, female, 5 milli- 

 meters; male, 4.25. 



" Trans. Sapporo Nat. Hist. Soc. 1 (1905) 21. 



