1922] NATURAL SCIENCES OF PHILADELPHIA 199 



apex. The very small size of the stridulating field and its strong 

 and suddenly convex projection at the apex of the stridulating 

 veins and the greatly reduced wings are other important features 

 for separating the males of these species. 



Type : cT ; Than -Moi, Tonkin. June and July. (From H. Fruh- 

 storfer.) [Hebard Collection, Type no. 814.] 



Size small, form robust for the genus. Pronotal surface rather 

 thickly supplied with minute, low tubercles, the largest on the 

 cephalic margin; ventral margin of lateral lobes weakly convex, 

 showing a weak angulation. Tegmina broad, greatest width of 

 scapular field nearly equal to greatest width of discoidal field; 

 stridulating field very small, suddenly and roundly produced at 

 apex of stridulating vein; costal margin broadly convex, sutural 

 margin faintly convex, apex rounded and situated at the sutural 

 margin. Wings greatly reduced, about two-thirds as long as teg- 

 mina, spatulate in contour, all but the anterior portion of the 

 radiate field having disappeared. Supra-anal plate as long as 

 broad, with free margin convex. Cerci moderately elongate, 

 curving gradually inward and tapering to the minutely toothed 

 apex. A large plate lies between these, bearing a minute tooth, 

 directed dorsad and curved mesad, meso-proximad on each side. 

 Subgenital plate of the usual Pseudophyllid type, rather short, 

 with styles rather broadly spatulate. Ventral surfaces of femora 

 moderately hairy, spines of cephalic and median femora mere 

 tubercles, of ventro-external margins of caudal femora very small, 

 in number as follows. Cephalic internal 3, cephalic external 

 (but rugulose), median internal 0, median external 3 and 6, caudal 

 internal and 4, caudal external 10 and 11. Ventro-external 

 margins of median and caudal femora lamellate. Cephalic margin 

 of metazona raised, roughened mesad, weakly tuberculate laterad. 



General coloration forest green. Tubercles on cephalic margin 

 of pronotum whitish green. Distal margins of abdominal tergites 

 and dorsal margin of caudal femora purplish. Tegmina marked as 

 described above, their ventral surfaces weakly washed with purplish 

 in the more transparent areas, immediate costal margin whitish 

 proximad. 



Length of body 28.5, length of pronotum 6.4, length of tegmen 

 30.5, greatest width of tegmen 10, length of stridulating field of 

 tegmen 4.7, length of wing 21, greatest width of wing 6, length of 

 cephalic femur 7.2, length of caudal femur 12.9 mm. 



The type is unique. 



Phyllomimus inquinatus Brunner. 



1895. Phyllomimus inquinatus Brunner, Monogr. der Pseudophylliden, p. 

 58. [ 9 ; [Island of] Penang, Malay Peninsula.] 



Island of Penang, British Straits Settlements, (from C. F. Baker), 

 1 d". 



