538 EPHEMERIN.E. 



8. Ephemera hebes. 



Picea ; antenna: nigra;; seta; fusco-testacea ; pedes testacei, antici 

 fusci ; ala cinerea, venis nigris. 



Subimago, Fem. — Dull piceous : antennae black : abdomen 

 move than twice the length of the thorax : setae brownish testace- 

 ous, mutilated : legs dull testaceous; fore-legs brown : wings gray ; 

 veins black, not strongly marked. Length of the body 4 lines ; "of 

 the wings 10 lines. 



a. Newfoundland. Presented by W. C. St. John, Esq. 



9. Ephemera australis, Mas. 



Picea ; vertice antennisque nigris; thoracis latera fiavo maculata ; 

 abdomen rufum ; seta fulva, corpore plus duplo longiores; 

 pedes fit hi, antici fusci; ala limpida, cosla apicali fusca. 

 Subimago ? Ferrugineo-fusca ; seta corpore longiores ; ala 

 antica fusco bifasciata. 



Male. — Piceous: head black above: antennae black : thorax 

 with yellow spots on each side : abdomen red, paler beneath, hardly 

 twice the length of the thorax : setae tawny, much more than twice 

 the length of the body : legs tawny ; fore-legs brown : wings lim- 

 pid ; veins black, very slender : fore border of the fore-wing* 

 brown along one-third of the length from the tip. Length of the 

 body 4 lines; of the setae 11 lines ; of the wings 9 lines. 

 a — d. Van Dieman's Land. From Dr. Hooker's collection. 



Subimago? — Ferruginous-brown; borders of the segments 

 paler : antennae black: abdomen full twice the length of the thorax : 

 setae longer than the body : wings limpid ; veins black, clouded 

 with brown : fore-wings with two broad, irregular, interrupted, and 

 very oblique bands. Length of the body 3 lines ; of the setae 6 

 lines ; of the wings 9 lines. 



a — d. Van Dieman's Land. From Dr. Hooker's collection. 



