i Qf> January, 1881. 



HOM(EOKETJRIA, U. g. 



Akin to Lnchlania. Wing-membrane as in Spaniophlebia. Fore- 

 wing with undivided longitudinal nervures, and no cross-veinlets ; 

 three sub-equal caudal setae, in ? about one-fourth as long as the body 

 and glabrous. Type, H. Salvinia, n. sp. Distrib., Central America. 



H. Salvinice, n. sp. 

 Imago, ? , dried. Head and thorax above smooth, black ; wing-neuration 

 fuscous ; legs pale (discoloured) ; back of abdomen fuscous, with pale joinings, belly- 

 pale ; seta) black. Long. Corp., ? , 11, al. 11 — 12, set. 3 mm. 



Sab. : G-uateinala. 



Asthekopus, Etn., = Campsurtjs, Etn. 



Jolia, n. g. 



Allied to Polymitarcys. Median caudal setae abortive in both 

 sexes. Neuration of the wings rather similar to that of Polymitarcys. 

 Nymph agile, with seven pairs of abdominal trachaeal branchiae of 

 uniform make, each consisting of an obovate membranous lamina, with 

 a fascicle of filaments annexed to its hinder base (almost similar to 

 the trachaeal branchiae of Meptagenia) . Fore femur and tibia fringed 

 within with dense stiff hair, as in Oligoneuria (tarsus slender). Man- 

 dibles not prolonged into a tusk ; their lobes slender and acute. 

 Caudal setae natatorial, about seven-tenths as long as the body ; the 

 lateral setae ciliated internally, and the median seta plumose for up- 

 wards of half their length, and then tail-pointed. Type, J. Boeselli 

 (in Palingenia), Joly. Distrib., the Graronne, near Toulouse, in Sep- 

 tember. Drawings and specimens were most kindly transmitted to 

 me by Dr. E. Joly ; and I caught three nymphs last August at 

 Toulouse. 



Bhoenanthus, n. g. 



Very like Potamanthus (restrict.), but with the median caudal 

 seta abortive in both sexes ; lateral setae in <-£ upwards of twice as long 

 as the body (in $ Potamanthus one and a-half times). Type, Ph. 

 speciosus, n. sp. Distrib., Lahat. 



Rhoenanthiis speciosus, n. sp. 



Subimago dried. Wings whitish, with most of the cross-veinlets well bordered 

 with sanguineous, excepting those near the inner and terminal margins, where the 

 wing-membrane is more or less tinted with ochraceous. 



Imago dried. S , mesonotum lutescent or brownish-luteous. Fore-leg pale 

 ochraceous, with the apex of the femur, the base and apex of the tibia, and the 

 tarsal joinings tinged with purple or sanguineous ; ungues dissimilar : posterior legs 

 with the tarsal joints very narrowly tipped with sanguineous. Wings vitreous ; 



