MILLIPED GENUS DIXIORIA — ^HOFFMAN 11 



appearance. Head dark brown except for the lighter labral area; 

 antennae hght bro^v^^ with distal portion of each article white. Tarsal 

 claws brown, sternites darker than the legs. A faint dark spot in the 

 yellow of the paranota just above each repiignatorial pore. 



Ecology: The only specimen of Dixioria pela pela that I have 

 collected was found beneath a stone near the edge of a grassy field at 

 Cloudland, on Roan Mountain, at an elevation of about 6,000 feet. 

 It was associated with numerous specimens of the xystodesmid Boraria 

 media (Chamberlin). I had previously searched at several places on 

 the Tennessee side of Roan Mountain between 3,000 and 5,000 feet 

 without success, but a week later, on June 27, Leslie Hubricht obtained 

 a good series on the North Carolina side during night collecting for 

 land snails. 



This subspecies has perhaps the largest areal range of any member 

 of the genus, and its vertical distribution is certainly not surpassed. 

 The records encompass elevations ranging from about 2,000 feet up 

 to 6,000 feet. The lowland material is not recognizably different in 

 the genitalia. 



Distribution: Dixioria p. pela appears to be confined to the 

 Unaka range in the immediate vicinity of Roan Mountain. The 

 precise limits of its distribution are yet to be established, but I suspect 

 that its southward occurrence is confined by the Nolichucky River, 

 south of which I have collected at several localities without finding 

 any form of Dixioria. It will be of interest to determine the area of 

 intergradation between 2)ela and coronata, which must lie in the eastern 

 part of Johnson County, Tenn. 



Distributional records and the specimens upon which they are based 

 are as follows: 



North Carolina. Avery County: Cranberry, date and collector not known 

 (AMNH, type of dentifer Chamberlin, probably intergrade with D. p. wrighti). 

 Mitchell County: East side of Roan Mountain, 1 mile below Carver's Gap, Leslie 

 Hubricht coll., June 27, 1950 (RLH). 



Tennessee. Carter County: Burbank, Roland Thaxter, no date (MCZ, type 

 series); 2 miles southeast of Burbank, Hubricht, Sept. 1, 1951 (RLH); Doe 

 River Bluff, near Hampton, Hubricht, May 3, 1951 (RLH, a male with tendencies 

 toward acuminata). Unicoi County: Iron Mountain Gap, 4 miles southeast of 

 Limestone Cove, Hubricht, Sept. 2, 1951 (RLH). 



Dixioria pela acutninataf new subspecies 



Figure l,b 



Type specimen: Male holotype (USNM 2011), collected at the top 

 of Holston Mountain 2 miles west of Shady Valley, Johnson County, 

 Tenn., by J. A. Fowler and R. L. Hoffman on June 19, 1950. 



Diagnosis: Prefemoral process nearly straight, very slightly 

 expanded distaUy, with a small terminal acuminate point. Distal 



