THE ENTOMOLOGIST 



Vol. XLIII.] DECEMBEE, 1910. [No. 571 



A NEW SPECIES OF BAETIS (EPHEMERID^) FEOM 

 THE EASTERN CARPATHIANS. 



By Kenneth J. Mokton, F.E.S. 

 (Plate VI.) 



Mr. Josef Dziedzielewicz, Gerichtsrat (retired), in Lemberg, 

 a zealous student of the Neuroptera of his country, who has 

 added a number of most interesting new species to our know- 

 ledge of the fauna of the Eastern Carpathians, some time ago 

 sent to me a representative collection of the Ephemeridse for 

 confirmation by the Rev. A. E. Eaton. Mr. Eaton very kindly 

 examined the collection and made a most useful report, but at 

 the time circumstances did not admit of his undertaking the 

 publication of an3'thing concerning them. 



Included is a species of Baetis which was not known to Mr. 

 Eaton, and which is apparently new. At the request of the 

 discoverer I now describe it as 



Baetis carpatica, n. sp. 



Imago (dried) <? . Notum mainly piceous, sometimes with paler 

 sutures and paler sides. Dorsum of abdomen brown passing to 

 brownish piceous at the apex. Metasternum and abdomen beneath 

 and the setae paler. Forceps with the large basal joints fuscous or 

 blackish, the other joints fuscescent. Wings hyaline, with brownish 

 neuration, faintly amber-tinted, slightly darker in the costal region. 



$ . Almost entirely brown above ; three terminal segments 

 beneath pale yellowish. 



Length of fore wing : <? , 10-11 mm. ; ? , about 13 mm. Length 

 of caudal setaB of ^ about 22 mm. 



Loc. In the region of Chomiak, in the Eastern Carpathians 

 (a peak in the " Flussgebiet " of the Prut, 1544 metres). 



Explanation of Plate. — 1. Apex of abdomen from beneath. 2. Apex 

 of abdomen from above. 3. Hind wing of male (nat. length, 2'75 mm.). 



ENTOM. — DECEMBER, 1910. 2 C 



