SIMA. Ill 



Kanara (AitJcen\ Ceylon (Green $ Wickwar), and throughout 

 Burma and Tenasserim (Bingham). It, however, extends into the 

 Malayan subregion. 



This, like S. rvfonigra, is a tree-ant and almost as fierce as that 

 species ; its sting, however, is not so severe. Wroughton reports 

 a species of Salticus mimicking S. nigra as Myrmaradine providers 

 mirnicks S. rufonigra. I have never come across it. Like the 

 species of the allied genus Pseudomyrma in America, /S'. nigra 

 sometimes forms its nest in hollow thorns. I have found one 

 such nest in the hollow of a huge thorn on a large creeper 

 growing round a teak-tree in Upper Burma ; and Wroughton 

 reports having found the thorns of Acacia latronum occupied by 

 colonies of this ant. 



129. Sima binghami, Ford, Rev. Suisse, Zool. x (1902), p. 243, $ <$ . 



. Black ; the mandibles, antennae, apex of the tibiae and the 

 tarsi reddish brown ; the anterior femora and tibiae, and the coxae, 

 femora and tibiae of the intermediate and posterior legs chestuut- 

 brown, the apical margins of the abdominal segments narrowly 

 yellowish ; pilosity fairly abundant, pale ; pubescence dense on 

 the thorax and abdomen. Head shining, elongate, rectangular, 

 narrower posteriorly than in front, arid about twice as long as 

 broad, the occiput slightly concave, the cheeks straight ; eyes placed 

 somewhat to the front and a little nearer the top of the head than 

 to the mandibles ; mandibles with the inner and outer margins 

 parallel, the masticatory margin armed with 5 teeth ; clypeus 

 narrow, with a medial projecting portion, the anterior margin of 

 which is crenulate and fringed with stiff hairs ; antennal carinas 

 short, vertical, rather close together; antennae short and stout, 

 the scape barely reaching up to the top of the eyes. Thorax 

 elongate, narrow ; the pronotum not so broad as the head, laterally 

 compressed and margined, longer than broad ; thorax constricted 

 at the mesonotum, which Jatter is longitudinally oval, the pro- 

 nieso- and meso-metanotal sutures distinct, the thorax in profile 

 broadly emarginate at the latter suture ; metanotum elongate, 

 compressed, the basal portion half as long again as the apical 

 portion into which it passes by an abrupt curve; legs slender, 

 comparatively short. Pedicel very long, the nodes more or less 

 petiolate anteriorly ; the 1 st node narrowly oval, constricted pos- 

 teriorly ; the 2nd conical, broader than the 1st, convex and posteriori v 

 obliquely truncate beneath ; abdomen very long, narrow, attenuate 

 and acute at apex. 



$ . Closely resembles the $ > but the head is most remarkablv 

 long and narrow, the pronotum is proportionately shorter, and the 

 mesonotum very much longer than in the ; wings hyaline with 

 a brownish tint. 



c? . Head small from the front, diamond-shaped, strongly con- 

 stricted anterior and posterior to the eyes, the occiput truncate ; 

 antennae long and filiform, the scape about as long as the 2nd 

 joint of the flagellum. For the rest closely resembling the . 



Length, $ 7'5-ll ; $ 13-14 ; rf 11 mm. 



