194 



THE ENTOMOLOGIST. 



Burmese amber, from Mr. R. C. J. Swinhoe. This is a 

 Micropteryx in the old sense ; probably it falls close to or in the 

 modern genus Mnemonica, but in any event it seems to present 

 no characters suggesting an extinct genus. It is the first member 

 of this group to be found fossil. 



Fig. 1. — Micropteryx pervetits Ckll. a. Anterior wing. b. Frenulum (hind 

 wing), c. Middle joints of antenna, d. Hind leg, showing tibial spurs. 



Eye. 



ISOPTERA. 



Embiid^. 



Sub-family Oligotomin^ (Oligotomice, Enderlein). 



Burmitembia, new genus. 



Males winged, related to Oligotoma, but with the veins all strong 

 and conspicuous ; anterior wing with subcosta short, as in Oligotoma, 

 the end turned upward to costa ; Ej joining Ro +3, as in Oligotoma ; 



Fig. 2. — Burmitemhia venosa. b. Part of hind wing. c. Palpus, d. Head 

 and prothorax. 



radial sector only two-branched ; only one cross-vein between its 

 upper branch and Rj ; an imperfect cross-vein between the branches 

 of sector ; no cross-vein between sector and media ; media simple, 

 strongly arched ; cubitus branched ; anal simple. Hind wing with 

 fork of radial sector much wider, the branches joined by a complete 

 cross-vein, and a complete cross-vein from lower branch to media. 

 Prothorax longer than in Oligotoma ; head elongate, rather narrow. 

 Type the following : 



