156 fJ»iy> 



• 



This g-euus is erected for some of those species which have been 

 included in the genus Pseudectobia, Sauss. The type of Pfeudectohia 

 is luneli, Sauss., a small species with the femora very sparsely armed 

 as in the Ectobiinse, and with a small and ill-defined apical triangle. 

 It is a puzzling species, ^nd the only specimen that I have seen is the 

 very shattered tyj^e preserved in the Geneva Museum, but it is plainly 

 not congeneric with liturifera, Stal, and indeed is more suitably 

 placed in the Ectobiinx. I must own to consideraljle alteration of 

 opinions about the species of Pseudectobia, and I should like to cancel 

 a good deal of that which I have written about the genus. In ex- 

 tenuation I can only plead that the author of the genus, de Saussure, 

 was very vague himself about its limitations, and has brigaded under 

 its heading a number of widely separated species belonging both to 

 the Ectobiinas and to the Pseudomopina} [^^ PlujUodromiinie]. In a 

 more extended memoir I hope to clear vip all the confusion definitely, 

 having now examined all the types I am in a better position to do so 

 than formerly. 



A few words are necessary to explain the systematic position of 

 the genera LiosU/pha, Stal, and Mareta, BoL, both of which have by 

 some authors been considered as synonymous with PhyUodromia, Serv. 

 LiosUpha lyumicata, Stal, the type of Liosilpha, is a very broad, short, 

 and rather convex species, with the discoidal sectors of the tegmina 

 olilique, the ulnar vein of the wings ramose, no apical triangle, and the 

 front femora armed after Type A, the tegmina and wings do not exceed 

 the apex of the abdomen, and the species has very much the appear- 

 ance of an Allacta. In my opinion the genus can stand. 



Mareta, Bob, resembles Eoblatta, mihi, but the marginal field of 

 the tegmina is much broader, and the front femora are armed on the an - 

 terior margin beneath with minute piliform spines only. Onychostylns, 

 Bob, is imdoubtedly synonymous, the genus was based (as indeed was 

 Mareta, too) on secondary sexual characters of the male sex, eminently 

 untrustworthy characters for generic discrimination. An examination 

 of the type, 0. tmyuiculatus, Bob, shows that in all other important 

 details of its anatomy it agrees with Mareta. A considerable number 

 of species described under PhyUodromia I find to be true species of 

 Mareta. 



1, Clarendon Villas, Oxford : 

 June mi, 1911. 



