4 Mr. E. E. Austen on new 



author lias much pleasure in naming in lionour of its 

 discoverer, somewliat resembles tlie West Australian Pan(/onia 

 yibbula, Walk., from uhicli, however, it is readily distin- 

 guishable owing to its proboseis being vertical instead oE 

 projecting downwards and forwards at an obtuse angle with 

 the longitudinal axis of the body, and to the metallic 

 appearance and peculiar coloration of the abdomen. 



Adersia, gen. nov. 



Allied to the South American genus Scepsis, Walk. — 

 Female usually decidedly larger than ^ , often much larger, 

 thorax bulkier and abdomen broader. Posterior orbits broad 

 in ? instead of non-existent, as in Scepsis ? . Eyes bare, 

 'separate in both sexes, in ? relatively rather small ; front 

 narrow in S •> broad in $ and protuberant when viewed in 

 profile ' ocelli present. Proboscis and palpi extremely short 

 and small, former depending vertically beneath head, latter 

 nearly horizontal ; proximal joint of palpi {at least in typical 

 species) not sivollen, as in Scepsis ; terminal joint of jyalpi 

 more elongate and less swollen in ^ than in ? , cup-shaped in 

 both sexes ivhen viewed from outer side, having, at least in 

 typical species, a pit-like depression at distal extremity ; 

 antenna short, especially first and second joints, third joint 

 lanceolate in projilc, consisting of eight annidi ; jowls narrow, 

 not, as in Scepsis, descending a long ivay below lower 

 margins of eyes. Inner margin of each eye in ? uniformhi 

 curved, not, as in the $ 0/ Scepsis nivalis, JValk. {the type of 

 the genus Scepsis), produced into an angle just above the lowest 

 fourth of the front. Wing ivilh a distinct stigma, all posterior 

 cells open ; base of anterior branch of third longitudinal vein 

 not {as in Scepsis) bent at a right angle, and not {as in Scepsis) 

 emitting a backivardly directed appendix. Front claws long in 

 both sexes; middle and hind claws longer and stouter in ? 

 than in c? • 



Typical species Silvius cestrdides, Karseh. 

 Although resembling Scepsis in general appearance and 

 coloration, as also in the snialhiess of the jnoboscis, Adersia 

 is sufficiently distinguished from its South American ally 

 by the differences mentioned above, as well as by the re- 

 markably broad front of the ? , which is not narrowed by a 

 constriction due to the inner margin of each eye being 

 prodneed into an angle a little above the anteuniij. From 

 Pronopes, Lw., as represented by Pronopes nigricans, Lw., 

 from Cape (^'-olony, — the only species of the genus yet 

 described and of which no specimens have so far reached 



