8G Mr. H. St. J. K. Donistliorpe on 



but the neuration is quite indistinguishable. Tlie pedicel is 

 also indistinct. Traces of two legs are present. 



Long 2 mm. ; fore wing, long 2 mm. ; hind wing, long 

 1*2 mm. ; head, long *5 mm. ; thorax "8 mm. ; gaster '7 nun. 



Oligocene at Gurnet Bay (Bi-odie). 



Holotype, (D. 1), T. 9734 in Brit. Mus. (PL V. fig. 4). 



The Ponera atavia of the Baltic amber is said to be so 

 similar to the recent Ponera coarctata, which occurs in Britain, 

 that it is almost impossible to distinguish the two by any 

 satisfactory characters. It is a larger insect than P. miniita, 

 and measures about 3'6 nun. in length. 



Genus Emplastus, nov. 

 (hjun-Xaffros, imprinted.) 



Diagnosis. A Ponerine with eyes small and close fo the 

 base of the mandibles, mandibles without teeth. 

 Genotype. E. emeryi. 



Emplastus emeryi, sp. n. 



This specimen shows the head, which is distinctly outlined, 

 part of the thorax, part of one front wing, and traces of two 

 legs. _ _ • 



The species comes near to Myopias, Roger, but the man- 

 dibles, which in that genus possess two small teeth, appear 

 to be quite without teeth. The eyes are small and are placed 

 close to the base of the mandibles. Head 2 mm. long and 

 2*3 mm. broad ; transverso-medialis to basal corner of dis- 

 coidal cell "7 mm., discoidal cell, which touches the second 

 cubital, 1 mm. long ; second cubital cell, long 1*2 mm. ; first 

 cubital cell on discoidal '8 mm. ; basalis on first cubital 

 *3 mm. ; second cubital cell at apex *6 mm. 



Oligocene at Gurnet Bav (Hoolei/). 



Holotype, (a. 30), H. 129, in coll. Hooley (PI. V. fig. 5). 



Named in honour of Professor C. Emery, in recognition of 

 his valuable work on the ants of the Sicilian amber (1891), 

 and also for kindly pointing out to me the position of this 

 and some other species of these fossil ants, from sketches I 

 sent to him. 



Only two species of Myopias are known ; they occur in 

 Ceylon and New Guinea respectively, and both are very rare. 



