144 HYMENOPTERA. 



Myrmecia forficata, Fabr. Syst. Piez. 424. 3 ; fy Cab. Banks. Mus. 

 Linn. Soc. 



Hob. Tasmania. 



3. MYRMECIA SIMILLIMA. B.M. 



Worker. Length 7 lines. This species is very like M. forfi- 

 cata, of which possibly it may be a variety; but it is more coarsely 

 sculptured ; the striation is longitudinally divergent on the pro- 

 thorax, and irregularly roughened transversely on the meso- and 

 metathorax; in M. forficata the prothorax has a regular trans- 

 verse curved striation, that on the mesothorax and scutellum 

 being regularly striated longitudinally ; this difference in striation 

 appears to characterize a distinct species. 



Hab. Australia. 



4. MYRMECIA PYRIFORMIS. PL X. figs. 1-6. B.M. 



Worker. Length 8i-9 lines. Black, with an obscure tinge 

 of red : the anterior part of the face and the mandibles ferrugi- 

 nous ; the legs obscure ferruginous, with the tarsi brighter, vary- 

 ing in different individuals in brightness ; the abdomen shining 

 black, the nodes nearly black. Head longitudinally rugose ; the 

 prothorax with a transverse rugose striation, the rest of the tho- 

 rax transversely striated ; the first node of the abdomen rugose. 



Female. Length 10 lines. Of the same colour as the worker : 

 differing only in having the thorax oblong-ovate, not strangulated 

 in the middle, and with the mesothorax and scutellum rugose- 

 striate ; wings hyaline, nervures pale rufo-testaceous. 



Male. Length 8 lines. Black, with the antennae, mandibles 

 and tarsi ferruginous ; the head and thorax densely pubescent, 

 the pubescence pale and glittering. Abdomen with a fine grey 

 pile, and a thinly scattered pale pubescence ; the thorax wider 

 than the head, which is narrowed posteriorly ; the antennae as 

 long as the head, thorax and nodes of the abdomen. 



Hab. Australia (Melbourne ; Hunter River). 



This species very closely resembles the M. forficata, but is 

 certainly distinct, if the sexes are correctly assimilated, and all 

 being taken at the same time and place render it probable ; all 

 the sexes are larger than those of M. forficata ; the male is 

 strikingly distinct, and the head of the worker and female is 

 of a squarer form and not narrowed behind. 



5. MYRMECIA VINDEX. B.M. 

 Worker. Length 7 lines. Ferruginous, with the abdomen 



