112 ME. SMITU'S DESCRIPTIONS OF HTMENOPTEEOUS INSECTS 



short, narrowed behind, and deeply constricted in the middle. Abdo- 

 men much wider than the thorax. 



H'orker minor. Scarcely 1 line in length ; of the same colour as the 

 larger worker, entirely smooth and shining ; the head much smaller 

 in proportion than in the large worker, but stiU wider than the abdo- 

 men. 



Hab. Bachian. 



This species was found under rotten bark. 



3. Pheidole plagiaria. p. ferruginea; capite maximo, in medio 

 sulcato ; abdomine apice fusco. 



Worker major. Length 2 lines. Ferruginous, with the apical joints of 

 the flagellum and the tarsi ])ale testaceous. Head very large, at least 

 four times the size of the abdomen, longitudinally striated and deeply 

 notched behind; the clypeus and mandibles smooth and shining. 

 Thorax narrowest behind ; the prothorax produced at the sides and 

 subdentate ; the femora incrassate in the middle, much narrowed at 

 their base and apex; the metathorax armed with two short, acute 

 spines. Abdomen fusco-ferruginous ; with the extreme base pale. 



Worker minor. One line in length, of the same colour as the large 

 worker, but entirely smooth and shining ; the antennae and legs much 

 more slender and elongate ; the head much smaller in proportion ; the 

 eyes larger, and placed in the middle of the sides. 



Hah. Bachian. 



Found on a dead tree, pulling White Ants out of their holes, and carrying 

 them away alive. 



4. Pheidole pabulator. P. rufo-brunnea ; capite maximo, laevi et 

 nitido ; metathoracis spinis minutissimis ; abdomine apice fusco. 



Worker major. Length 3 lines. Reddish brown ; the head very large, 

 smooth, and shining, emarginate behind, with an impressed line in the 

 centre running to the base of the clypeus ; the face anteriorly and the 

 mandibles pale ferruginous; the hinder portion of the head trans- 

 versely striated, the anterior portion longitudinally so ; the legs and 

 antenna; paler than the body. The thorax narrowed behind, with two 

 short, acute spines on the metathorax. Abdomen globose, in some 

 specimens nearly black, smooth, and shining. 



Worker minor. Length 1-L}line. Of the same colour as the i/;or^er 

 major, but entirely smooth and shining ; the head a httle wider than the 

 abdomen ; the flagellum and legs pale ferruginous, and more elongate 

 than in the large worker. 



Hab. Bachian. 



Taken crossing a pathway in the forest, the giant specimens surrounded 

 by small ones, and often dragged along by them ; the small ones sting. 



5. Pheidole megacephala. P. obscure ferruginea ; capite maximo 

 in medio sulcato ; metathorace bispinoso, abdomine ovato. 



Worker. Length 6^ lines. Dark ferruginous ; head very large, sub- 



