384 T. D. A. Cockerell — Descriptions of Tertiary Insects. 



If this is admitted, apparently Meropidse may be divided into 

 Meropinee, for Merope, and Eomeropinse, n. subf., for Eome- 

 rope, the latter being separated on the structure of the abdomen 

 and the venation of the anterior wings. It may be supposed 

 that these insects represent an American type, once prevalent, 

 but now reduced to a single genus and species, Merope tuber, 

 Newman. 



A New Type of Mecaptera, approaching the JVemopteridas. 



JEobanksia bittaciformis gen. et sp. nov. 



Wings long and narrow, hyaline, with the apical half of the 

 costa fuscous ; anterior wing about 16 mm long and 3 wide ; hind 

 wing about 12 mm long and 2 wide. 



FjG g Anterior wing. — Costal 



margin of basal half of wing 

 heavy, faintly arched, with 

 several straight or very 

 slightly oblique cross-nerv- 

 ures to subcosta. On the 

 apical half of the wing the 

 narrow area between the ra- 

 dius and costa is wholly fus- 

 cous, and no cells are visible. 

 Subcosta straight, running 

 parallel with and close to the 

 radius, its exact termination 

 not visible on account of the 

 darkening. Radius perfectly 

 Fig. 8. Eobanksia bittaciformis straight, even toward the 

 Ckll. base of the wing only half 



a millimeter from costal mar- 

 gin, and terminating on costa a short distance before the 

 obtuse apex of wing. Radial sector leaving radius about 6 

 from base of wing, and branching after a course of about 3 

 running practically as in Bittacus ; the lower branch simple ; 

 the upper running near the radius, and forked after a course 

 of 4 mm ; in another specimen the lower branch of this fork is 

 again forked. Media appressed to radius at base, and after 3 mm 

 leaving it at a very acute angle, and having a straight un- 

 branched course, practically parallel with the stem and lower 

 branch of the radial sector. Cubitus small and weak, running 

 close to lower margin, and bending abruptly downwards to end 

 upon it, after about 4 mm . Cross-nervures irregular and vari- 

 able, but more numerous than the Bittacus, especially in the 

 basal half of the wing. No anal visible, nor indeed is there 

 room for one. 



Posterior wing. — Narrow, with two strong parallel closely 

 adjacent straight veins running its entire length, about two- 



\ 



mm 

 mm 



