•42 PBRCr SLADBN TRUST EXPEDITION'. 



Family FulgOridSB. 



Subfamily Lophopinae. 



IVINGA, gen.nov. 



Vertex siibqiiadrate, extending beyond tlie eyes, the margins ridged, the carination 

 of tlie face appearing at the apex of vertex as four small acute points ; face a little 

 longer than broad, moderately narrowed towards apex, which is concavely sinuate, the 

 lateral mai-gins carinate, and with two central longitudinal carinations which scarcely 

 reach the apex ; clypeus longer than broad, somewhat swollen, with a distinct central 

 longitudinal carination ; pronotum short, broad, about as long as vertex, the anterior 

 margin a little roundly produced, the posterior margin slightly concave before mesonotum, 

 with two central carinations, between which are two small tubercles, lateral margins 

 sinuate, posterior lateral angles somewhat subacutely prominent, the margins of the 

 prosternum seen on each side above and obliquely transversely carinate ; mesonotum 

 almost as long as pronotum and vertex together, moderately globose on anterior area, with 

 a faint central longitudinal carination and distinctly transversely impressed before apex ; 

 legs of moderate size, the anterior trochanters longly produced, posterior tarsi with the 

 basal joint short and incrassate ; tegmina a little more than twice as long as broad, costal 

 margin arched to a little before middle, then deflected to apex, which is rounded, posterior 

 claval margin almost straight and extending to apex, which is posteriorly subangulate, 

 costal membrane broad, obliquely transversely veined, remaining surface above clavus 

 more or less reticulately veined, claval vein extending to apex, clavus somewhat indistinctly 

 transversely veined ; wings shorter than tegmina, with transverse veins defining some- 

 what long apical cells. 



54. Ivinga typioa, sp. n. (Plate 4. figs. 2, 2 a.) 



Head, pronotum, mesonotum, sternum, and legs dark ochraceous ; abdomen above 

 and beneath pale ochraceous ; tegmina very pale ochraceous, with the veins dark 

 ochraceous ; wings white, subhyaline ; eyes pale castaneous ; structural characters as iu 

 genei'ic diagnosis. 



Long. excl. tegm. 7 millim. ; exp. tegin. 17 millim. 



Locality. Mahe. 



Subfamily Ricaniinse. 



Division Ricaniinaria. 



55. Frivesa infusca, sp. n. (Plate 4. figs. 5, 5 a.) 



Body and legs piceous brown ; eyes ochraceous, transversely striped with piceous ; 

 clypeus, rostrum, sternum, and femora paler and more ochraceous ; tegmina piceous or 

 piceous brown, central and posterior claval margins brownish ochraceous, the costal 

 margin broadening before a black stigmatal spot which is slightly margined with white 



