1922] NATURAL, SCIENCES OF PHILADELPHIA 247 



Conocephalus (Xiphidion) melas (Haan) 



1842. L[ocusla\ {Xiphidium) melaena Haan, Verh. Nat. Geschied. Nederl. 



oversee, bezitt., Zool., Ins., p. 189. [d\ 9 ; Java.] 

 1891. Xiphidium nigro-geniculatum Redtenbacher, Verh. Zool.-bot. Ges. 



Wien, XLI, p. 511. [<?, Borneo.] 



There is scarcely any doubt that Redtenbacher has described a 

 recessively colored specimen of the species as nigro-geniculatum. 



Borneo, 1 cf. 



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



This handsome and strikingly colored species is now known to 

 have a very wide distribution. A considerable unrecorded series 

 is before, us from Japan and China. 



In the specimens here recorded, the ventro-external margins of 



the caudal femora are armed with two to four small spines. The 



measurements of the Singapore males are as follows; length of 



body 14.7 and 15.2, length of pronotum 3.3 and 3.7, length of 



tegmen 13.9 and 14.5, length of caudal femur 12.7 and 13.8 mm. 



Conocephalus (Xiphidion) formosus (Redtenbacher) 



1891. Xiphidium formosum Redtenbacher, Verh. Zool.-bot. Ges. Wien, 

 XLI, p. 530. [d", 9 ; eastern Java.] 



Pasoeroean, eastern Java, (determined as formosus and presented 

 by Saussure), 1 d\ 1 9 , [A. N. S. P.]. 



The greatly reduced tegmina and broad oblique suffusion of 

 brown on the enlarged portion of the caudal femora readily dis- 

 tinguish this species from C. melas (Haan), to which it is closely 

 related. The ventro-external femoral margins are armed with 

 one to three minute spines in the pair before us. 



Conocephalus (Xiphidion) vestitus (Redtenbacher) 



1891. Xiphidium vestitum Redtenbacher, Verh. Zool.-bot. Ges. Wien, 



XLI, p. 529. [cf, Philippine [Islands].] 

 1920. Conocephalus sannio Karny, Verh. Zool.-bot. Ges. Wien, LXX, p. 27. 

 [cf, 9 ; Los Banos, Philippine Islands.] 



Karny apparently overlooked the description of vestitus, the 

 name sannio being based on material, apparently identical, except 

 in being slightly darker in coloration than Redtenbacher's type. 



Los Banos, Laguna, Luzon, Philippine Islands, 1917, 1 9 , 

 [A. N. S. P.]; (from C. F. Baker), 1 cf , 1 9 . 



Tnis is one of the handsomest species of the genus, its coloration 



distinctive and strikingly contrasted. Length of body; c? 11.5, 



9 12 and 12.5; length of pronotum d 1 3.4, 9 3.7 and 3.9; length 



of tegmen c? 5.3, 9 2.7 and 2.7 85 ; length of caudal femur cf 14, 



9 13.7 and 14.8; length of ovipositor 6.7 and 7 mm. 



85 The least exposed dorsal length is, however, only 1.7 mm. 



