10 



Pouipoiiia iiiipcratoria (Westwood). 



Hab. Borneo, Telok Ayer (Muir). Previously also from Malay 

 Peninsula, Java, and Sarawak. 



FAMILY CERCOPIDAE. 



Subfamily Machacrotinac. 



I consider tbat tlie Macliaerofiiiac are simply Ccrcopidac with 

 simplified venation, both of tegmina and wings, and with more 

 or less produced nota ; they are a side branch of the Ccrcopidae, 

 and ill no ii.'ay a link between them and the Mciiibraciiiac, which 

 are a development of the Tcfigoniidac (or "Jassidac" ) and lie 

 right on the other side of the latter. The Membracidac are simply 

 Tcfigouiids with modified face and leg's, and with a more or less 

 ornamental nota. This development is merely analogical be- 

 tween the Machacvotinac and Membracidac, and in no way homo- 

 logical, as in the former it is mesonotal, in the latter pronotal ! 



Pcctiiiariophycs Kirkaldv. 



The hind tibiae are bispinose, but the basal one is minute. 



Polychactophycs Kirkaldy. 



This genus is very close to Machaeropsis Melichar, and may 

 prove identical. The head, however, is much shorter and broade^^, 

 and very much more declivous, the face is broader and shorter, 

 the scutellum is scarcely, or not at all, grooved mediolongitudi- 

 nally. and the apical cells of the tegmen are four or more, though 

 two or more of these are small. 



Machacrota itiohtccana sp. nov. 



Apparently allied to M. cnsifcra Burmeister, but the scutellum 

 is tricarinate, its process much more arched, and the pronotum 

 is not striped.. Purplish piceous ; the pronotum browner along 

 the posterolateral margin, and the scutellum with a short whitish 

 longitudinal streak basally on each side; the process is brownish - 

 yellow. The face is unicolorous, but has thin, lateral, silvery, 

 radiating lines. Fore and middle legs brownish-yellow ; hind legs 

 brownish-piceous. Sterna and base of abdomen beneath partly 

 pale. Tegmina yellowish-hyaline, veins brownish-yellow, the 

 costa and subcosta darker for the greatest part of their length. 

 Wings hyaline, veins blackish-brown. Vertex scarcely, though 

 very nearly, as long as in cnsifcra, rounded anteriorly, rather 

 longer than wide between the eyes (or at least as long). Vena- 



