CAMPONOTPS. 377 



Length, $ maj. 8-10; $ min. 5-7; $11 min. 



Hob. More or less commoii throughout our limits. C. opaci- 

 ventris, Mayr, is clearly only a variety, having no pubescence on 

 the abdomen. The excavation of the posterior face of the meta- 

 .notum varies in individuals from the same nest. Certain specimens 

 from Burma and Ceylon have the head blood-red ; others have the 

 thorax and even the head more or less pubescent. 



444. Camponotns varians, Roger, Berl. ent. Zeit. vii (1863), p. 138, ; 



Farel, Journ. Bomb. N. H. Soc. vii (1892), p. 223, . 



" . Shining black, basal two abdominal segments yellow, 

 antennae and legs brownish yellow, the articulations, coxae and 

 tarsi bright yellow, or else wholly black with brown legs and 

 antennae. Body with sparse recumbent pubescence. Head a 

 little broader than the thorax in front, with shallow net-like 

 punctures, posteriorly more lightly transversely rugose, above all 

 very shining. Clypeus convex, not carinate nor emarginate nor 

 lobate. Mandibles 5-toothed in front, yellow, with the base brown 

 with scattered punctures. Frontal area shining, finely rugulose. 

 Thorax viewed from the side arched, above broad and more or less 

 flat ; pronotum much broader than long, rounded at the sides, 

 separated from the mesonotum by a crescentic line, the anterior 

 angles with acute margins ; mesonotum transverse, flat posteriorly, 

 somewhat sharply emarginate. Metanotum laterally strongly 

 compressed, above about one-third as broad as the pronotum 

 and longitudinally quadrangular, posteriorly abruptly truncate, 

 slightly concave. Thorax above very finely, rather closely trans- 

 versely rugose, the sides of the pronotum finely, those of the 

 meso- and metanotum deeply longitudinally striate, in the latter 

 the sculpture is dense, coarse, nearly granulate. Node lower than 

 the metanotum, smooth, oval, rounded above, with a somewhat 

 sharp margin on the sides. Abdomen thickly transversely rugose. 



" Length, $ 3*4 mm. 



" Bab. Ceylon." (Roger). Unknown to me. 



445. Camponotus nirvanae, Forel,Joum.Bomb. N. H. Soc. vii (1893), 



p. 443, 9$- 



" maj. Mandibles short, obtuse, armed with 5 or teeth, 

 opaque or subopaque, extremely finely and densely reticulate, 

 striate, nearly without punctures. Head rectangular, much longer 

 than broad, subtruncate anteriorly, as in C. reticulatus race yerburyi, 

 but a little broader posteriorly than in front, the occiput somewhat 

 deeply emarginate. Eyes situated in the second fifth of the sides 

 of the head posteriorly. Clypeus rectangularly rounded, much 

 narrower in front than posteriorly, flat, not carinate, nor lobed 

 nor emarginate in front, and almost without the lateral portions. 

 Antennal carinae long, distinct and very divergent. The scape 

 does not reach the posterior margin of the head. The thorax 

 broad, subdepressed above, without emargination, but with the 



