of neiu species of Tenthrediidda, §•<?. 405 



Fam. MYRMICID^. 



Genus APHJi:NOGASTER, Mayr. ' 



1. AphcBnogaster aciculata. 



Female. — Length 5 lines. Shining jet-black. Head: 

 the mandibles aciculate and somewhat obscm-ely ferru- 

 ginous; the extreme apex of the scape and also of the 

 flagellum rufo-piceous ; the head aciculate. Thorax: 

 above longitudinally aciculate and having a few scattered 

 punctures ; scutellum rounded behind and having a central 

 longitudinal impressed line, the metathorax deeply ex- 

 cavated in the middle, the excavation transversely acicu- 

 late ; the four apical joints of the tarsi rufo-testaceous. 

 Abdomen : the two nodes of the peduncle rugulose ; the 

 segments smooth and shining, and with scattered pale 

 set^e. 



Worker. — Length 2^ lines. Jet-black, the head and 

 thorax aciculate, the abdomen smooth and shining, and 

 with scattered pale setae. The extreme apex of the 

 antennas, the tips of the femora and of the tibiae, and the 

 apical joints of the tarsi, rufo-testaceous ; the nodes of the 

 abdomen rugose. 



Hab. — Hiosro. 



Genus IscHNOMYRMEX, Mayr. 

 1. Ischnomyrmex famelicus. i 



Worker.— Length 3 lines. Black, nigro-piceous or 

 rufo-piceous, very variable in colour ; large workers usually 

 black, with more or less ferruginous-coloured legs ; small 

 workers rufo-piceous, with intermediate shades in different 

 examples. Head oblong, eyes lateral, small and prominent, 

 situated about the middle of the length of the head; 

 antennae nearly as long as the body ; mandibles trigonate, 

 prominent and dentate. Thorax : the prothorax produced 

 into a short neck ; the metathorax bidendate ; above with 

 a longitudinal channel ; legs elongate, the intermediate 

 and posterior tibite with very short fine spines at their 

 apex. Abdomen: the petiole of the first node long; 

 the node, viewed laterally, of a blunt wedge-shape ; the 

 second node svibglobose; abdomen smooth, shining and 

 ovate, usually palest at the apex. 



Hah. — Hiogo. 



