found in Southern India. 1 09 



India, I add here a brief description of them taken from St. 

 Fargeau's work on Hymenoptera : — 



" Formica sexspinosa, Latr. Body black, covered with a fine 

 silky yellowish down, especially on the abdomen ; head oblong, 

 narrowed posteriorly ; antennse long ; posterior angles of the 

 head salient j jaws large, triangular, with three or four teeth; 

 eyes small, globular, sahent ; thorax with two spines anteriorly 

 on its lateral angles, and two on the posterior extremity pointing 

 backwards; abdominal pedicle thick, rounded in front, truncated 

 posteriorly, with two spines almost as large as those on the pos- 

 terior extremity of thorax. Length 7f lines (French). From 

 Southern Asia. 



*' Formica hastata, Latr. Black, finely shagreened and slightly 

 hairy ; head short ; antennse long ; jaws short, with two teetL 

 and a larger curved one at the end ; space between the antennae 

 elevated, with an arched crest on each side ; eyes small, round ; 

 thorax cubical, compressed, its surface flat, and the ridge on each 

 side sharp, anteriorly wide and square, with a spine on each side, 

 at the humeral angles strong, sharp, straight, and reaching to 

 the head ; its posterior part truncated, with a strong spine at 

 each angle pointing obliquely upwards; abdominal pedicle large, 

 triangular, \Aith its upper edge concave, a small tooth in the 

 middle, and a strong arched spine on its lateral angles directed 

 backwards, with a little tooth beneath each. Length 4 lines. 

 From India. 



" Formica relucens, Latr. Exceeding like the last {F. hastata), 

 but differs in the following points — body covered with silky, 

 golden, shining down, with a few larger hairs ; thorax with two 

 spines anteriorly and none posteriorly ; abdominal pedicle with 

 four spines, the upper ones nearly straight. Length 4 lines. 

 From Southern Asia. 



" Formica Ammon, Latr. Very like the two last; body black, 

 striated, with a few hairs; thorax ashy; anterior angles advanced; 

 posteriorly the lateral angles prolonged into a large straight 

 spine, pointing backwards ; abdominal pedicle large, triangular, 

 with the upper angles prolonged into a very long curved spine, 

 directed backwards ; abdomen covered with a silky golden down. 

 Length 2} Unes. From Southern Asia. 



"Formica carinata, Fabr. Head rounded, black; thorax 

 black, divided into three by two deep transverse hues; the 

 anterior portion with a spine on each side directed forwards, and 

 the posterior part with two small straight spines; abdominal 

 pedicle large, square, with two raised shai-p bent spines. Length ? 

 of medium size. Southern Asia." 



