226 PROCEEDINGS OF THE ACADEMY OF [Vol. LXXIV 



Xom-Gom, southern Annam, February, (from H. Fruhstorfer), 

 1 9. 



Length of body 42.3, width of head 10, length of pronotum 10.3, 

 exposed length of tegmen 2.1, width of interspace between tegmina 

 1, length of cephalic femur 11.2, length of caudal femur 18.8, length 

 of ovipositor 20 mm. 



Dicranocercus zamboangae new species. Plate XVIII, figures 8 and 9. 



The coloration, though dull, readily distinguishes this insect 

 from the two previously known species of the genus. In general 

 appearance the male resembles that sex of Macroxiphus vaginatus 

 Pictet, but closer examination shows the numerous distinctive 

 features by which these genera are separated, while striking dif- 

 ferences in coloration are then also noted. The remarkable cerci 

 of the male are different from those of any other Tettigoniid known. 



Type : d 71 ; Zamboanga, Mindanao, Philippine Islands. (From 



C. F. Baker.) [Hebard Collection, Type no. 839.] 



Size slightly smaller than that of D. niger Pedtenbacher, 74 form 

 moderately slender. Vertex slenderly produced, compressed, de- 

 cidedly ascendant, with apsx sharply rounded; dorsal surface with 

 a low rounded carina, which is strongest proximad. Face deeply 

 and thickly impresso-punctate, lateral portions of occiput and all 

 of pronotum similarly but more shallowly impresso-punctate. 

 Pronotum not produced and truncate caudad; lateral lobes weakly 

 broadening caudad with ventro-caudal angle sharply rounded 

 rectangulate and caudal margin nearly straight, very weakly 

 oblique and nearly vertical. Prosternum unarmed. Tegmina 

 and wings decidedly reduced, falling short of the apices of the 

 caudal femora. Ultimate tergite large, distal margin truncate 

 but showing broad convexity laterad and brief concavity mesad; 

 supra-anal plate concealed. Cerci heavy proximad, there ventro- 

 internally produced in a large tooth which is directed mesad, 

 beyond this short proximal portion cylindrical, tapering to the 

 sharply rounded apex, the ventral portion developed into a very 

 large lamellate plate which widens gradually but strongly proximad 

 from the apex of the cercus, its ventral portion curled inward and 

 produced in a large lamellate finger directed meso-cephalad, then 

 with free margin deeply convex to a smaller rounded lamellate 

 projection directed mesad, thence with the free margin deeply 

 concave to shaft of cercus. Subgenital plate with lateral margins 

 broadly concave convergent, deeply U-emarginate distad, with the 

 slender lateral apices thus formed weakly divergent; a small de- 

 curved style, three times as long as broad, situated in a socket 

 disto-ventrad on each of these. Genicular lobes of femora uni- 



74 Described from Jolo Island, Sulu Archipelago. 



