1922] NATURAL SCIENCES OF PHILADELPHIA 133 



brown and with a dark brown line on each side. Other portions of 

 limbs immaculate. 



Allotype: 9 ; Sandakan, British North Borneo. (From C. F. 

 Baker.) [Hebard Collection.] 



Agrees closely with male except that the pronotum lacks all but 

 the larger of the minute flecks. Ovipositor broad, angularly bent 

 upward in proximal portion, greatest width meso-distad, apex 

 rotundato-truncate; ventral margin evenly convex, very minutely 

 serrulate at apex, dorsal margin very minutely serrulate except in 

 brief proximal portion. Subgenital plate quadrate-emarginate 

 meso-distad, the lateral portions rotundato-acute-angulate. 



Length of body d 71 14, 9 15; length of pronotum a 71 4.6, 9 4.1; 

 greatest (caudal) depth of pronotal lateral lobe d 71 3.3, 9 2.8; 

 length of pronotal lateral lobe d 71 3.3, 9 2.8; length of tegmen 

 & 20, 9 20.7; width of tegmen d 1 5.7, 9 5.5; length of cephalic 

 femur d 71 3.7, 9 3.7; length of caudal femur cf 11, 9 11; length of 

 male cercus 5.2, length of ovipositor 5.3, greatest width of ovi- 

 positor 2.7 mm. 



The species is known from the described pair. 



Ducetia thymifolia (Fabricius) 



1775. L[ocusta] thymifolia Fabricius, Syst. Ent., p. 283. [New Holland 

 (= Australia).] 



Chandkhira, Silhet, Assam, 1 d 71 . 



Singapore, British Straits Settlements, (from C. F. Baker), 2 9 . 



Labuan, British North Borneo, 1 d 71 • 



Baguio, Benguet, Luzon, Philippine Islands, (from C. F. Baker), 



1 d". 



Los Banos, Laguna, Luzon, Phillipine Islands, (from C. F. Baker), 



1 <? . 



Mount Makiling, Luzon, Philippine Islands, (from C. F. Baker), 



2 9. 



Malinao, Tayabas, Luzon, Phillippine Islands, (from C. F. 

 Baker), 1 tf . 



The Mount Makiling individual is the only wholly brown speci- 

 men in the present series, the others showing various types of the 

 green color phase. 



PROHIMERTA new genus. 



This genus is an aberrant member of the Group Letanae, as the 

 cephalic tibiae do not entirely lack dorsal spines. In general 

 appearance the insect agrees best with species of Letana Walker, 

 (of which Pyrrhicia Stal is a synonym), differing in the even broader 



