1922] NATUKAL SCIENCES OF PHILADELPHIA 195 



tegmen 18.8, length of tegminal stridulating field 22.3, length of 

 stridulating vein 10, length of cephalic femur 13.8, length of caudal 

 femur 23 mm. 



Promeca unicolor B runner. 



1895. Promeca unicolor Brunner, Monogr. der Pseudophylliden, p. 52. 

 [cf, 9 ; Kina Balu, Borneo.] 



Labuan, British North Borneo, 1 cf , 2 9 . 



The median vein branches meso-distad in females, near the apex 

 of the tegmina in males of this species. 



The tegminal spots described by Brunner, when small, are dark 

 vinaceous. When larger, these spots are seen to have white centers 

 and in one female before us the more proximal are enlarged into 

 opaque white blotches, rimmed with dark vinaceous. 



Length of body cf 29, 9 32 and 34; length of pronotYrm cf 7, 

 9 9 and 9.1; length of tegmen cf 35.8, 9 55.7 and 55.8; median 

 width of tegmen cf 11, 9 14 and 13.8; length of caudal femur 

 cf 16.3, 9 22.7 and 22; length of ovipositor 27.8 and 30 mm. 



From the measurements of the original series, it would appear 

 probable that considerable individual variation in size and tegminal 

 development will be found in this insect. 



Promeca quadripunctata Brunner. 



1895. Promeca quadripunctata Brunner, Monogr. der Pseudophylliden. 

 p. 53. [ 9 , Java.] 



Sandakan, British North Borneo, (from C. E. Baker), 1 cf . 



The previously unknown male of this species differs from males 

 of Phyllomimus detersus (Walker) in the decidedly more flattened- 

 convex pronotum, with surface tuberculation somewhat weaker, 

 lateral lobes decidedly wider, with ventral margin very broadly 

 convex, less ample tegmina in proportion to body bulk, much more 

 hairy ventral surface of limbs and caudal femora which are minutely 

 denticulate dorsad and have their ventro-external margins armed 

 with fewer spines, which, however, become distinctly larger distad. 



Compared with a female of Phyllomimus pallidus (Brunner), 

 this insect is found to show convergence in the pronotal flattening, 

 hairiness of the limbs and minute denticulation of the dorsal surface 

 of the caudal femora. That species is easily separated by the 

 immaculate pronotum, the punctulation of which is decided, lateral 

 lobes with ventral margin weakly obtuse-angulate, much smaller 

 male stridulating field, very much shorter cephalic femora and 

 very different armament of the ventral femoral margins. 



Length of body 26.5, length of pronotum 7.1, total width of 



