tiew Species of 'R\tiiUi\a. 27 



related to reproduction. The form of the suhfjonital lamiiui 

 ill /. Ridlcyi recalls that of Ilcinil/ii/rsocera histrio, Ikirm. 



Ischuojtttra perpnlclini, sp. n. 



? . Head testaceous, antcniue (nuitilated) testaeeous at 

 hnsc. Pronotuin trapezoidal, jjostcrior niarfrin slightly i)ro- 

 duced ; disk tlavo-testaeeous, encircled hy a hioad pciiaiinular 

 ring of hiack, open on the anterior margin, lateral and poste- 

 rior margins testaceous. Tcgmina castaneous, margin testa- 

 ceous ; eighteen costal veins ; radial vein hi fu rented hcyond 

 the middle, the lower hranch sending rami Heal ions to the 

 apex of the ving; discoidal field with nine longitudinal 

 sectors, the most internal of which arc angled. Wings 

 hyaline, veins fuscous, marginal field hordercd with testa- 

 ceous ; mediastinal vein with six hranches, ten to twelve 

 costal veins, radial vein hifurcatcd heyond the middle; ulnar 

 vein with seven hranchrs, three of which run towards the 

 dividing vein. Ahdomen fiavo-testaccons ahove, except at 

 the aj)ex, which is fuscous, testaceous helow ; snpra-anal 

 lamina ])ro(luccd triangular, suhgenital lamina ample. Legs 

 testaceous ; fnmt femora armed on the anterior mai'gin 

 heneath with strong spines throughout its length, the most 

 basal the longest; formula of apical spines j, |,|; front 

 femora without a genicular spine, nnlcss the most anterior 

 aj)i{al spine is to he regarded as such. 



Length of body 12 mm. ; length of tcgmina 14 ram. 



Maciissar, Cclches {IV. Dolicrty, 181)0); one example 

 (Oxford ]\Iusenm). 



This species is rather a puzzling one ; the angulation of 

 some of the discoidal sectors of the tcgmina suggests the 

 genera Vseudomops and Pseii(JolInjrsocera, but this is a 

 character that also erojjs up in PIi>jllodroiina, and, taken by 

 itself, is not of the greatest importance ; it is on account of 

 the branching of the vena ninaris alarum, so characteristic of 

 Jsc/inoptera, that 1 have referred this species to that generic 

 position. 



Ischnoptera cavernicola, sp. n. 



cJ . Head castancous, mouth-parts testaceous; antcnnre 

 testaceous, one and a half times longer than the hody. 

 rronotum rufo-castaneous, with lateral and [)Osterior margins 

 narrowly castancous. Tcgmina dear testaceous, ladial vein 

 bifurcated, twelve costal veins, six discoidal sectors. Wings 

 h valine, mediastinal vein with tlircc branchc*, seven costal 



