84 Psyche [April 



Notiopsocus gen. nov. 



Related to Peripsocus and Ectopsocus. Tarsi two-jointed, in fore legs the joints 

 subequal, in the hind legs the basal joint twice as long as the apical joint. Head 

 broad, eyes rather small, ocelli distinct; legs moderately slender. Fore wing with 

 long stigma; median vein near its tip with but one branch, and in some cases this 

 is faint or absent; cubitus simple, not quite reaching the margin; in hind wing the 

 median and radius united for some distance. Type, N. simplex sp. nov. 



Notiopsocus simplex sp. nov. 



Pale yellowish, head and thoracic notum brownish, eyes black, ocelli on black spot; 

 legs wholly pale; wings hyaline; stigma grey, nearly four times as long as broad,, 

 with three rows of bristles. Wings hardly reach to tip of abdomen, dorsum of 

 abdomen very soft, venter more chitinous and brown, and two apical rings also more 

 chitinous, the last segment bilobed at tip, and sparsely hairy. Length 1.7 mm. 



From Manaos, Amazonas, Brazil (Mann coll.). 



Ephemerid.e. 



Cauipsurus dorsalis Burmeister. 



A number of specimens of a large species which I identify as- 

 this species; I figure the male genitalia; they are similar to those of 

 C. albifilum Walk., and perhaps that species is a synonym of C. 

 dorsalis. From Camp 41, and 39, Madeira River, Brazil. De- 

 scribed from Brazil. I suspect that C. pictetii Kirby is the same 

 species. 



Campsurus latipennis Walker. 



A few specimens of a small species; I figure the male genitalia 

 which agrees fairly well with the figure of Eaton, the process near 

 base of the long appendage is very slender, the size and marks agree 

 with Eaton's description. 



From Camp 41, Madeira River, Brazil. Described from Brazil. 



Spaniophelbia assimilis sp. nov. 



Head and thorax dark brown; abdomen and legs paler brown; setae whitish, the 

 basal joint brown, the next short oblique joint almost black; the setae furnished with 

 many short spine-like hairs, and few very long fine hairs, mostly on the inner side, 

 wings hyaline, veins dark, three radial cross-veins, two medial ones, behind the 

 cubitus is a weak sinuous vein that is connected to cubitus by a cross-vein; by this 

 character it is related to S. anceps Eaton, but that species has more cross-veins. 



