1922] NATURAL SCIENCES OF PHILADELPHIA 227 



spinose, except the cephalic external and median external which 

 are bluntly rounded. Ventral femoral margins armed with spines, 

 as follows. Cephalic internal 3 and 4, cephalic external 5 and 5, 

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

 caudal external 9 and 10. 



General coloration prouts brown tinged with russet, the limbs 

 deep russet except the cephalic tibiae which are hessian brown. 

 Pronotum narrowly dorsad, median portion of occiput, all of vertex, 

 two proximal antennal joints, antennal scrobes and frontal fas- 

 tigium blackish chestnut brown. Face hessian brown. 



Length of body 28, length of pronotum 6.7, caudal width of pro- 

 notal disk 2.9, length of tegmen 13, median width of tegmen 13, 

 distal width of tegmen 1.8, length of cephalic femur 7.2, length of 

 caudal femur 13.7, length of cercus 4 mm. 



The type is unique. 



Macroxiphus vaginatus Pictet. 



1888. M [acroxiphus] vaginatus Pictet Mem. Soc. Phys. d'Hist. Nat. Geneve, 

 XXX, No. 6, p. 53, pi. II, fig. 27. [ 9 , Java. 75 ] 



Kina Balu, British North Borneo, 1 9 . 



Labuan, British North Borneo, 1 cT, 2 9 . 



Length of body c? 38, 9 39 to 41; length of pronotum cf 8.7, 



9 10 to 10.1; caudal width of pronotal disk tf 3.8, 9 4.7 to 4.8; 



length of tegmen cf 29.4, 9 36.5 to 40; length of cephalic femur 



<? 9.6, 9 11.9 to 12; length of caudal femur d 1 19.2, 9 24.7 to 



24.7; length of ovipositor 46.2 to 49.8 mm. 



Macroxiphus megapterus Brongniart. 



1896. Macroxiphus megapterus Brongniart, Bull. Soc. Philom. Paris, (8), 

 Vlll, p. 130, fig. 2. '[9, North Borneo.] 



Kina Balu, British North Borneo, 1 cf. 



Labuan, British North Borneo, 1 C? , 1 9 . 



We concur with Karny in considering Dohrn's M. pictipes a 

 synonym of this species. Dohrn, however, stated for the male 

 cerci, "apice bifidi, subtus in medio dente brevi acuto instructi." 

 There appears to be some inaccuracy here, as the males before us, 

 though agreeing closely in other respects, have the strongly in- 

 curved cerci bidentate distad and, though unarmed ventrad, bearing 

 mesad on the dorso-external margin a stout, uncinate tooth, directed 

 caudad. 

 Acanthocoryphus mindanensis new species. Plate XVIII, figures 10 and 11. 



The present insect is widely distinct from A. brongniarti Karny, 



75 We fully agree with Dohrn (Ent. Zeit. Stettin, LXVI, p. 2^3, (1905),' in 

 believing that Pictet was in error in giving Java as the type locality for this 

 species. All subsequent material studied indicates that this remarkable insect 

 is peculiar to Borneo. 



