186 



PROCEEDINGS OF THE ACADEMY OF [Vol. LXXIV 



General appearance that of a dead leaf. Mars brown to tawny 

 olive in coloration. Mottled, with paler ventral portions of 

 caudal tibiae heavily banded with suffusions of dark brown at the 

 spines. Antennae dark, with five to seven widely spaced, striking 

 annuli of buffy. Tegmina mottled in large, solid areas, irregular 

 in outline, with different shades of brown and showing often a 

 number of desiccated-appearing patches, some of these occasionally 

 shining blackish brown, the majority buffy brown. Caudal femoral 

 spines dark only at tips. As is usual in this type of coloration, the 

 occiput, disk of pronotum and anal field of the tegmina are often 

 of a distinctly paler shade than the adjacent portions. 



The coloration in such irregularly mottled katydids, which 

 clearly resemble dead and dried foliage, is so subject to individual 

 variation that it can not be more definitely described for the species. 



Measurements (in millimeters) 



d" 



Length 



of 

 body 



Obi Island 

 Obi Island 



9 

 Obi Island 

 Obi Island 



34 

 36 



45.5 

 47 



Length 



of 



pronotum 



7.8 

 9.5 



9.8 

 10.3 



Obi Island 37.S 48 10.7 



Length 



of 

 tegmen 



56 

 65.5 



69 



72 

 74.6 



Greatest 

 width of 

 tegmen 



17.1 

 19.2 



20.9 

 20.9 



22.7 



Length 

 of caudal 

 femur 



40 

 49 



51.1 

 53.2 

 54 



Greatest 



width of 



caudal 



femur 



5.8 



7.3 



7.7 

 7.8 

 8 



Length 

 of ovi- 

 positor 



32.1 

 32.2 

 32.3 



The present material indicates that size alone is probably of 

 little value in separating the species referable to Eumecopoda. 



Macrolyristes imperator Snellen van Vollenhoven. 



1865. Macrolyristes imperator Snellen van Vollenhoven, Tijdschr. voor 

 Ent., VIII, p. 108, 49 pi. VII, figs. 1 and 2, pi. VIII, figs. A to C. [d\ 9 : 

 Java; Borneo.] 



Sandakan, British North Borneo, (from C. F. Baker), 1 9 • 



Nias Island, southwest coast of Sumatra, Sunda Islands, 1 cf . 



Though not as heavily built as Pseudophyllanax imperialis 

 (Montr.), the present species shows the greatest tegminal develop- 

 ment found in the Tettigoniidae. The female before us has an 

 expanse of 274 millimeters, (10% inches). This, for an insect, is 

 truly enormous. 



In both sexes the costal margin of the tegmina shows a very feeble 

 convexity, the sutural margin broadly convex and curving to meet 

 the costal margin at the acute-angulate apex. This gives to the 



48 The body of this specimen is shrunken. 



49 A paper, with figures, by C. Mulder, on the internal anatomy of this insect 

 follows the original description. It is there stated that the species is known in 

 Java as "Babang Salak," that it is arboreal and flies at night and that it is seldom 

 seen, so that the natives ask five silver gulden for a specimen. 



