CAMPOXOTrs. 309 



430. Camponotus gigas, Latr. (^Fonuica), HUt. Xut. Founn. (I8O1'), 



p. 10-5. i . pi. 1*. tiir. 3l5 ; Forel, Jour. Bomb. X. H. Soc. vii (1802), 

 p. 225, C . 



5 maj. Head, thorax, legs and node of pedicel pitch-black, 

 apical joints of the tarsi and abdomen castaneous brown or red, 

 the basal two segments of the latter shaded with fuscous brown ; 

 head nearlv devoid of pubescence ; thorax and abdomen covered 

 rather sparsely with erect brown hairs. Head comparatively very 

 large, subtriangular, the sides straight, the occiput deeply emar- 

 ginate. lateral occipital angles rounded but remarkably prominent ; 

 mandibles elongate, toothed on the inner as well as on the 

 masticatory margin ; clypeus comparatively narrow, with a medial 

 vertical carina and a ven.' prominent median lobe, the anterior 

 margin of which is subemarginate ; scape of antennae cylindrical. 

 Thorax comparatively narrow ; legs very long, tibiae compressed 

 and longitudinally channeled. Xode of pedicel conical, very 

 convex anteriorly ; abdomen broad. 



$ mill. Similar ; head rounded posteriorly, flagellum of the 

 antennae, coxae and femora of the legs and the abdomen cas- 

 taneous. 



2 . Similar to b maj. ; head smaller, narrower and less deeply 

 emarginate posteriorly ; wings hyaline yellow, brown along the 

 costal margin. Node of pedicel thick, transverse, notched above. 



S . Similar to the 2 min. ; head proportionately very small, the 

 cheeks concave, head behind the occiput strongly constricted. 

 Entirely of a dark brownish black, coxae and femora of the legs 

 testaceous vellow. 



Length, » maj. 27-30 ; ^ mln. 13-lS ; $ 2S-3i'J ; J 19 mm. 



Hah. The Malay Peninsula, Borneo, Sumatra, creeping into the 

 extreme south of Tenasserim. Mergui district (Binf/ham). 



431. CamponotXLS marg^JiatTlS, Latr. (Formica), Ess. Hist. Fmirm. 



J^r. (1798), p. 35, 6 9; -Fore'/ (iw. himalavanus;, Jour. Bomb. 

 X. H. Soc. vii (1893), p. 431, ? . 



g maj. Head aud thorax black, head slightly polished and 

 shining, thorax opaque, legs brownish red ; abdomen dark cas- 

 taneous brown, poHshed and shining ; pubescence sparse, erect, 

 more plentiful on the abdomen. Head subtriangular, very convex 

 in front ; mandibles sliort, very massive, striate and deeply punc- 

 tured ; clvpeus comparatively small, sublobed, not carinate, its 

 anterior margin slightly denticulate. Thorax broad in front, 

 abruptly truncate posteriorly : legs stout, tibiae slightly flattened. 

 Xode of pedicel broad, oval, slightly biconvex and rounded above ; 

 abdomen broad and massive. 



$ min. Similar, smaller, more pubescent ; head not constricted 

 or attenuated posteriorly ; mandibles with (3 teeth. 



2 . Verv similar to the $ maj. ; head slightly narrower. Xode 

 of pedicel broader, notched in the middle above ; abdomen very 

 much longer and more massive. 



TOL. II, 2 B 



