1922] NATURAL SCIENCES OF PHILADELPHIA 167 



bases. Cerci moderately elongate, moderately stout, flattened 

 cylindrical, curving gently inward to the truncate apex which is 

 armed with a row of- minutely microscopic teeth. Subgenital plate 

 small, extending caudad a decidedly lesser distance than the cerci, 

 apex triangularly emarginate, the lateral extremities bluntly 

 rounded. Genicular lobes of femora bidentate. Ventral femoral 

 margins armed as follows with small teeth; cephalic internal 5 and 

 6, cephalic external 0, median internal 0, median external 5 and 6, 

 caudal internal 7, caudal external 9. Cephalic tibiae with dorsal 

 surface strongly sulcate, external margin with three and one distal 

 small spines. 



Head clay color, a postocular buffy line continued on each side 

 along the pronotum to its caudal margin and below eyes to clypeal 

 suture, this line bordered internally on vertex with hydrangea red 

 and with a short median streak of the same color below the eyes. 

 Eyes auburn, with a slender longitudinal blackish line. Pronotum 

 clay color, the disk evenly washed with hydrangea red. Femora 

 clay color with spines mars brown, tibiae and tarsi mars brown. 

 Abdomen clay color, with a series of blackish brown markings 

 laterad, the dorsal surface showing traces of hydrangea pink. 

 Tegmina with anal field ochraceous-tawny margined with black, 

 this heavy in area of stridulating field; discoidal field light green, 

 scapular field dark green proximad shading into vinaceous, the 

 costal margin narrowly white with immediate margin black in 

 proximal portions. 



Length of body 22.7, length of pronotum 5.8, cephalic width of 

 pronotum 2.3, caudal width of pronotum 3.3, width of pronotal 

 lateral lobe 4.2, depth of pronotal lateral lobe 4.1, length of tegmen 

 36.5, greatest (meso-proximal) width of tegmen 6.7, median width 

 of tegmen 6, distal width of tegmen 3.9, length of cephalic femur 

 7.8, length of caudal femur 30 mm. 



The delicacy of coloration in this species, the type of which is 

 unique, gives it an exceptional beauty. 



PLATTCAEDICIA new genus 



This genus is erected to include species which have a very dif- 

 ferent general facies from the genotype of Caedicia, showing to it 

 much the same general contrast which, in the New World is found 

 between the genera Amblycorypha and Phaneroptera (Scudderia 

 of recent authors) . 



A general revision of the species of Caedicia is evidently greatly 

 needed, the species now included probably representing several 

 distinct genera. To Platycaedicia belong major (Brunner), obiensis 

 here described and very possibly hospes (Brunner). The latter 

 species was described from Amboina and referred to by Brunner 

 as an Asiatic species. This is incorrect, Amboina being far east 

 of Wallace's line and its fauna distinctively Melanesian. 



