COLOBOPS1S. CAMPONOTUS. 347 



the , just as it is with the $ and $ of C. jmbescens, but in the 

 latter species the margin of the truncated portion is less raised 

 and more obtuse." (fbrel.) 



Length, $ 5-6 mm. 



Hob. Lower Burma, Pegu Toma (Allan) Tenasserim (Fea) 

 Sumatra. 



maj. and 5 ar unknown to me. 



400. Colobopsis testacea, n. sp. 



. Pale testaceous yellow, with only a few scattered erect 

 pale yellow hairs. Head cylindrical, the anterior truncated 

 portion deeply depressed and very closely set with shallow punc- 

 tures ; clypeus medially vertically carinate, the portion of the 

 cheeks forming the lateral rims of the depressed truncation 

 carinate along the edge; head wider anteriorly than at the 

 occiput, this latter rounded posteriorly. Thorax as in C. stricta $> ; 

 legs short, the femora and tibiae compressed, anterior femora 

 remarkably broad. Node of pedicel thick, transverse above ; 

 abdomen elongate, massive. 



Length, $ 7 ; evp. about 13 mm. 



Hob. Ceylon (Thwaites : Hope Mus. Oxford, type). 



$ maj. and min. unknown. 



Genus CAMPONOTUS. 



Formica, pt., Linn. Syst. Nat. ed. 12, i (17G6), p. 962: Smith, Cat. 



vi (1858), p. 1. 

 Camponotus, Mayr, Eur. Form. 1861, p. 35. 



Type, C. ligniperdus, Latr., from Europe. 



liange. Both hemispheres. 



$ . Mandibles triangular or subtriangular, with broad toothed 

 masticatory margins ; maxillary palpi 0-, labial pnlpi 4-jointed ; 

 clypeus trapeziform, not extending to the outer border of the 

 cheeks ; antennal carinae sinuate, somewhat S-shaped, rising from 

 the posterior border of the clypeus ; antennal and clypeal hollows 

 separate ; antenna? 12-jointed, filiform, originating remote from 

 the posterior border of the clypeus ; frontal area small, broader 

 than long ; eyes moderately large, placed above the middle line of 

 the head ; ocelli absent. 



Thorax anteriorly broad, posteriorly more or less compressed ; 

 pro-meso- and meso-metanotal sutures generally distinct. The 

 form of the thorax varies much among Indian species of this 

 genus, but four fairly distinct types occur : (a) pro-, meso- and 

 metanotum forming a regular arch ; (6) pro-, meso- and ineta- 

 notum forming an arch, but the last more or less truncate at 

 apex ; (c) pro- and mesonotura arched, metnnotuin gibbous, raised 

 out of the line of the curve ; (d) pro- and mesonotum arched, 

 meso-metanotal suture emarginate, metnnotum very strongly 

 laterally compressed, the sides vertical, the basal portion above 



