EPHEMERINiE. 571 



brown at the base ; its veins stout, clouded with black. Length of 

 the body 2\ lines; of the setae 4 lines ; of the wings 6^ lines. 



a, b. New Zealand. Presented by Dr. Sinclair. 



43. BAET1S ? TOERIDA. 



Ferruginea ; caput piceum; thoracis latera testacea ; pedes testacei, 

 validi, femoHbus apice pedibusque anticis piceis ; alee sublu- 

 rida, antica? costa fusca. 



Ferruginous, paler beneath : head piceous : sides of the thorax 

 testaceous : abdomen mutilated : legs testaceous, stout ; tips of the 

 femora and fore-legs piceous: wings with a slight lurid tinge ; veins 

 black, distinct; fore border of the fore-wings brown. Length of 

 the body 4 lines ? of the wings 10 lines ? 



a. Philippine Isles. From Mr. Wood's collection. 



44. Baetis? ignota, Mas. 



Picea ; abdomen subtus ferrugineum ; setce testacea; pedes Jlavi, 

 antici picei ; alee limpidce, venis albis. 



Male. — Piceous: abdomen twice the length of the thorax, 

 ferruginous beneath: setae testaceous, mutilated; legs entirely pale 

 yellow; fore-legs piceous : wings wholly limpid, with no stigma or 

 tinge along the fore border ; veins white. Length of the body 4£ 

 lines ; of the winL r s 12 lines. 



45. Baetis ? , Subimago. 



Ephemera angustipennis, Ramb. Hist. Nat. Ins. Neur. 295,6. 



Fem. — Size of Cloeon Diptera : head with the eyes broader 

 than the chest : eyes very prominent exteriorly, very far apart : ocelli 

 almost on the same line : thorax rather dark red : abdomen reddish- 

 gray, pale, with two rather thick filaments: legs dull reddish; tarsi 

 5-jointed: wings grayish: fore-wings narrow at the base, their 

 veinlets with slightly brownish borders. 



Madrid. 



