COLOBOPSIS. 345 



all 5 s of the Formicido', has the thorax and abdomen more 

 massive. 



Length, ^ maj. 10-11 ; ^ min. (5-8; $ 13 mm. 



Hah. Burma ; Tenasserim {Fea, Blm/ham). 



396. Colobopsis COtesi, Forel, Jour. Bomb. N. H. Soc. vii (1893), 



p. 438, ^ min. 



^ maj. Black, shining, with very sparse short erect black 



pubescence ; the truncated front of the head, including the base 



of the clypeus, the scape and flagellum of the antennae, and the 



front of the mandibles reddish chestnut, 



the legs dark brownish chestnut ; two 



spots at the base of the abdomen, a line 



along the base of the 2nd abdominal 



segment and two lateral spots at the 



base of the 3rd segment testaceous yellow. 



Head very massive anteriorly, above 



Fig. 106. coarsely rugose. Thorax comparatively 



Colobopsis cotcsi. broad, widely emarginate at the meso- 



Head ^ maj. luetanotal suture ; metanotum raised, 



rounded, somewhat conical ; legs stout, 



short, femora and tibiie especially of the anterior legs broad, 



strongly compressed. Node of pedicel transverse, notched above ; 



abdomen massive, broadly oval. 



5 min. Similar, smaller and slighter ; head obtuse anteriorly ; 

 metanotum truncate posteriorly. Xode of pedicel longer than 

 broad, very convex in front, flat posteriorly. 

 Length, ^ maj. 8 ; g min. 4'5-6 mm. 

 Hah. The Garo Hills, Assam {Long). 



397. Colobopsis angustata, Mayr, Verh. zool.-hot. Ges. Wien, xx 



(1870), p. 942, 2 ; Forel, Jour. Bomh. N. H. Soc. vii (189.3), 

 pp. 435 & 436, 2 5 . 



5 . Black, smooth and shining ; the anterior portion of the 

 head, the pro- and mesothorax, the anterior portion of the scu- 

 tellum, and the legs I'eddish brown. Head shorter proportionately 

 and the front truncated portion more obtuse than in the 2 of any 

 other Indian species known to me ; mandibles broad, subtriaugular ; 

 clypeus rectangular, the base beginning just at the margin of the 

 truncation ; a medial longitudinally impressed line on the front 

 carried on to the base of the clypeus. Thorax with the pronotum 

 depressed, the mesonotum elongate ; scutellum triangular, com- 

 pressed, and metanotum rounded posteriorly ; legs short, robust. 

 Node of the pedicel transverse ; abdomen OAal, elongate and 

 massive. 



" ^ maj. The part of the clypeus situated in the truncated 



portion is strongly constricted from back to front, and is raised 



above the sides of the clypeus ; no medial carina. Thorax of the 



$ min. and of the ^ ( 1/ ) maj. with a deep meso-metathoracic 



