332 THE ENTOMOLOGIST. 



coarse hairs scattered over them, much lighter beneath ; an- 

 tennge, mandibles and clypeus coloured like the under side 

 of the body, pale ferruginous. Head snbquadrate, emarginate 

 behind. Ocelli very large and glassy bright. Antennae elon- 

 gate, setaceous. Wings fusco-hyaline, with the nervures of a 

 darker tinge ; the nervures dividing the submarginal cells in- 

 complete posteriorly, so that the cells communicate with each 

 other. Thorax transversely wrinkled on the disk. Abdomen 

 with the apical margins of the segments broadly pale fuscous, 

 wrinkled longitudinally. Scale of the peduncle subcylindrical 

 and elongate. 



Male less than a line long, shining piceous, paler beneath, 

 with coarse hairs scattered over it. Disk of the thorax 

 opaque. Flagellum and tarsi ferruginous. Head narrower 

 than the thorax. Eyes and ocelli very large, the latter glassy 

 bright. Antennge setaceous, nearly or quite as long as the 

 insect. Mandibles, clypeus and sides of the face ferruginous. 

 Scale of the peduncle as in the female. 



I took these insects in copulation : they inhabit the nests 

 of Ponera metallica. I never found the workers. The great 

 difference in the size of the sexes, as well as in their colour, 

 is very remarkable. 



Genus Acantholepis, Mayr. 



A very remarkable genus, forming a connecting-link be- 

 tween Formica and Myrmica. I collected three species of 

 this genus, all undescribed, and all differing from the Euro- 

 pean species in the complete absence of ocelli in the workers. 

 They are Formicidae, with six-jointed maxillary and four- 

 jointed labial palpi, carinas over the insertion of the antennae, 

 and with the thorax more or less marked with tubercles or 

 prolonged in blunt tubercular spines. 



16. A. iuberculalus, Lowne. — Worker 2 lines long. Rufo- 

 piceous. Head twice as broad as the thorax, snbquadrate, 

 deeply emarginate behind. Antennae as long as the head 

 and thorax, inserted in a deep fossa. Flagellum thickened 

 towards the apex, and covered with short hairs (as in Ponera). 

 Eyes ovate, inserted near the anlenna3. Ocelli obsolete. 

 Thorax narrowed anteriorly, almost globose above, with 

 sharp slightly recurved lateral margins, separated from the 

 mesothorax by a deep groove. Mesotborax rounded above, 



