CABDIOCONDYLA. 287 



compressed node longer than broad ; the 2nd joint is broad, 

 broader than long, constricted and concave in front, a little less 

 constricted and convex posteriorly, rounded at the sides, flattened 

 above, furnished below with an obtuse tooth. Abdomen truncate 

 anteriorly." (Forel.) 



This genus is remarkable as possessing ergatoid males. 



Key to the Species, 

 a. Head posteriorly rounded, with no distinct 



posterior margin C. )>uda, p. 287. 



u. Head posteriorly transverse, with a distinct 



posterior margin, 

 a'. Node on second joint of pedicel distinctly 



much broader than long C. wroughtoni, p. 287. 



>'. Node on second joint of pedicel narrower, 



as long as broad. C. parvinoda, p. 288. 



325. Cardiocondyla nuda, Mayr (Leptothorax), Sitzungsb. Akad. Wiss. 



Wien, liii (1866), 1 Abth. p. 508, . 



. Head, thorax, legs and pedicel red, inclining to orange 

 on the thorax and pedicel and shaded with dark fuscous on the 

 front of the head ; antennae and legs orange-yellow ; abdomen jet- 

 black. Head, thorax and pedicel finely granulate, subopaque; 

 abdomen highly polished and shining. Head massive, as long 

 nearly as the thorax, oval, very convex in front ; mandibles broad, 

 very minutely punctured ; clypeus very narrow ; antenna} elongate, 

 the apical three joints of the flagellum fuscous. Thorax distinctly 

 narrower than the head, the anterior angles of the pronotum 

 visible but rounded ; metanotum cubical, the basal portion long, 

 about twice as long as the truncate face of the apical portion. 

 Pedicel about half the length of the thorax, the posterior node 

 about three times as broad as the anterior node ; abdomen oval. 



LenytJi, $ 2'5 3 mm. 



Hal. Sikhim (Bi.igliam) ; Bengal, Barrackpore (Rothney); 

 Ceylon {Green}. 



326. Cardiocondyla wroughtoni, Forel (Eraeriya), Ann. Soc. Ent. 



Bdg. xxxiv (1890), C. It. p. cxi, 6 . 

 $ . Head, thorax, legs and pedicel dull brick-red, abdomen 



Fig. 8t>. Cardiocondyla wroughtoni, g . 



black, sometimes entirely dark fuscous red, darkest on the head 

 and abdomen ; pilosity entirely wanting ; pubescence microscopic, 



