TERMITIDES. 521 



twice broader than long, slightly concave along the fore border, 

 convex on each side and behind : abdomen very much longer than 

 the thorax ; hind borders of the segments luteous: legs luteous ; 

 fourth joint of the tarsi longer than all the preceding joints : wings 

 gray, slightly opaque, luteous along the fore borders ; subcostal 

 space with about ten oblique transverse veins ; lougitudinal vein be- 

 hind them emitting near its tip three branches, one of which is 

 forked ; discal longitudinal vein emitting twelve distinct oblique 

 secondary veins. Length of the body 3^ lines; of the wings 18 

 lines. 



a. Tripoli. 



26. Termes dubius. 



Rufo-ferrugineus ; caput maximum, latum, sub quadratum ; palpi 

 maxillares mandibulis vix breviores ; thorax utrinque trispi- 

 nosus ; abdomen rufo-Jlavum, pubescens. 



Termes dubius, Ramb. Hist. Nat. Ins. Neur. 309, 17. 

 Termes dims ? 



Brazil. 



27. Termes cephalotes. 



Flavus,ferrugineo varius ; caput ferrugineum, subquadratum, de- 

 pression, thoracis abdominisque longitudine ; mandibulce nigra 

 non dentatce ; labrum longissimum ; antennarum articulus 

 2us reliquis brevior ; abdomen ovatum, Jlavum, disco obscu- 

 riore ; pedes pallide jiavi. 



Termes cephalotes, Ramb. Hist. Nat. Ins. Neur. 309, 18. 

 Termes dims ? 



Brazil. 



28. Termes insularis. 



Fulvus, nitens ; pedes pallidiores ; ales limpides. 



Termes insularis, White, Zool. Erebus and Terror, fig. 11. 



Tawny, bare, shining, linear, paler beneath : head elliptical, 

 flat above, a little narrower than the thorax: ocelli two, one on 



