1922] NATURAL SCIENCES OF PHILADELPHIA 285 



and veinlets warm huff, except proximad on the tegmina, where 

 the veinlets are dresden brown in all but the anal field. 



Length of body 31.5, width of fastigium of vertex 1.8, length of 

 pronotum 5.8, length of tegmen 40.8, greatest width of tegmen 13, 

 length of cephalic femur 8.2, length of caudal femur 13.8 mm. 



The type is unique. We take pleasure in naming this interesting 



species in honor of Dr. Achille Griffini, specialist on the Gryl- 



lacrinae, who, we understand, has been obliged to give up active 



work, due to injuries received as an Officer in the Italian Army 



during the World War. 



Papuogryllacris obiensis new species. Plate XXII, figure 8. 



It is interesting to find a Moluccan species of this genus, hitherto 

 known only from New Guinea and the more adjacent islands. 



Of the known forms, P. ligata subspecies concoloripes Griffini, 110 

 appears to be nearest, that insect differing in the more heavily 

 impresso-punctate face, bicolored pronotum and immaculate limbs. 

 The ovipositor of the present insect, very slender beyond base and 

 weakly curved upward, appears to show further differentiation 

 from the type developed in P. ligata (Brunner). 



Type: 9 ; Obi Island, Moluccas. [Hebard Collection, Type 



no. 851.] 



Size medium, form moderately robust. Fastigium of vertex 

 moderately broad, but distinctly less than one and one-half times 

 as broad as proximal antennal joint, surface cephalad flattened 

 between the rounded lateral margins, ventrad forming with facial 

 fastigium a conspicuous, transverse, linear suture. Face shining, 

 weakly impresso-punctulate. Pronotum with cephalic margin of 

 disk weakly but distinctly convex, cephalic sulcus broad but deep, 

 as are the V-sulci of the lateral lobes; lateral lobes decidedly longer 

 than deep, ventral margin straight, ventro-cephalic angle some- 

 what truncate and rounded, ventro-caudal angle rounded and 

 broadly truncate, humeral sinus broadly concave. Tegmina and 

 wings fully developed, extending somewhat beyond apex of ab- 

 domen. Tegmina narrowing very gradually from median point, 

 with apex median and rather broadly rounded. Ovipositor elon- 

 gate and extremely slender, very gently curved dorsad throughout; 

 apical portion not enlarged, the immediate apex sharply rounded. 

 Subgenital plate semicircular, the lateral portions swollen so that 

 the surface is there convex. Cephalic and median tibiae armed 

 with three pairs of moderately elongate spines, not including the 

 small distal pair of spines. Caudal femora very stout and moder- 

 ately short, ventral margins armed with (fourteen and sixteen) 

 internal and (nine and ten) external spines. 



110 Redia, VIII, p. 306, (1912). 



