366 "FORMICID.fi. 



tibia prism-shaped, longitudinally channeled. Node of pedicel 

 narrow anteriorly at base, flat above, slightly convex, the margin 

 transversely rounded ; abdomen elongate oval. 



$ min. Similar, smaller ; head oval, occiput rounded ; mandibles 

 with 5 teeth ; thorax proportionately narrower. Node of the 

 pedicel flat behind, very convex anteriorly. 



Length, $ maj. 11-13; $ ** 7-10 mm. 



flab. Northern India (Smythies) ; Sikhim (Matter). 



426. Camponotus angnsticollis, Jerilon (Formica), Madr. Jour. L. S. 

 xvii (1851), p. 120, $ $ ; Forel, Jour. Bomb. N. H. Soc. vii (1892), 

 pp. 226 & 235. 

 Formica ardens, impetuosa & callida, Smith, Cat. vi (1858), pp. 17 



& 18. 



Camponotus prismaticus, Mayr, Verli. zool.-bot. Ges. Wien. xii 

 (1862), p. 669, $. 



maj. Black, opaque, the flagellum of the antenna and the 

 apical two or three joints of the tarsi brownish yellow. Head 

 subtriangular, occipital angles prominent but rounded ; mandibles 

 with 6 teeth ; clypeus with a very prominent medial vertical carina 

 ending in a sharp point, and a broad median lobe transverse in 

 front and only very shortly produced ; occiput more or less widelv 



Fig. 115. Campouufua anyusticollis, 



emarginate. Thorax elongate and narrow ; legs elongate, rather 

 slender; tibi prism-shaped, compressed and longitudinally 

 channeled. Node of pedicel thick, the front at base flat, above very 

 convex, the upper margin transverse and notched, posteriorly flat 

 and truncate ; abdomen massive, oval. 



$ min. Head very much smaller, elongate, wider at the articu- 

 lation of the mandibles than at the vertex, occiput very strongly 



Fig. 116. Campouotiis angusticoll 



constricted and elongated into a neck. Thorax constricted and 

 narrowed in front. Black, the flagellum of the antenme ami le-, 

 fuscous brown. 



