56 JOURNAL, BOMB A Y NATURAL HISTORY SOCIETY, Vol. XIV. 



Apparently very different from the other species of the genus by 

 the form of the opercula. 



hb;teroptera. 



Artificial Group Cryptocbrata. 



I had hoped to include in this memoir a synoptical revision of the 

 Oriental species of the Notonectidse and Corisidae, but I have had 

 to defer this, owing to my present inability to fix the specific limits 

 of several species of Enithares, Spin., Anisops.,^T^m., Nyclna, Stal, etc. 

 It appears almost impossible to deal satisfactorily with these genera 

 without alcoholic material, which has been available in a few cases only. 



Family Mirid^e. 

 = Capsid£e auctt. (10) 

 Thaumastomiraria, divis. nova. 



Head vertical, transverse as seen from above, transversely depressed 

 near the base between the eyes. Pronotum with a narrow apical 

 collar, posteriorly elevated, lateral margins sinuate, autero- and 

 postero-lateral angles obtuse. Cuneus somewhat indistinct except 

 at the lateral margins. Membrane with a single entire longitudinal 

 nervure. Hindwings without a hook in the cell. Legs simple, tarsi 

 with 3 segments, apical the thickest, with long curved claws and large 

 aroliae. Abdomen short, not reaching nearly to the apex of the elytra. 



Not at all closely allied to any other divisions of the Miridse known 

 to me, and at once distinguished by the entire longitudinal nervure 

 in the membrane. 



Thaumastomiris, gen. nov. (11) 



Head vertical, transversely depressed between the eyes, transverse 

 as seen from above, not longitudinally sulcate. Eyes large, together 

 almost equal to the width of the head at base. Antennae : 1st segment 

 longer than head above, 2nd three-eighths longer than the first, 3rd 

 slightly longer than first, 4th slightly longer than the second ; fourth 

 thinner than third, both much thinner than 1 and 2 ; second thinner 

 than first. Rostrum reaching almost to posterior coxse. Pronotum 

 densely punctured, narrowly collared in fi'ont, callose submedianly 

 immediately behind the collar ; posterior half subconvex ; anterior 



(10) MiriSf Fabr., 1794, is the oldest genus in the family, capsus, dating 1803. 



(11) The component ' l/irjf( ' does not infer a close relationship or resemblance to th« 

 genus Miris, Fabr., but refers to its aff nity to the Miridee as a family. As it is the c nly known 

 genua the division, I reproduce the dirisional characters in the generic description. 



