Alloperla natchez Surdick & Stark, 1980

Stark, Bill P. & Kondratieff, Boris C., 2010, Larvae Of Eight Eastern Nearctic Alloperla Species (Plecoptera: Chloroperlidae), Illiesia 6 (20), pp. 267-276 : 273

Alloperla natchez Surdick & Stark

Alloperla natchez Surdick & Stark, 1980:71 .

Holotype ♂ ( United States National Museum), Mississippi, Claiborne Co., Little Sand Creek , Natchez Trace Parkway

Material examined. Mississippi: Claiborne Co., Ragsdale Creek, Regan Road , 30 March 1994, B. Stark, J. Parham, 1 larva ( BPS) . Simpson Co., Tanyard Creek, Old Westville Road , 27 March 1993, B. Stark, L. Brown, 1 larva ( BPS) . Same site, 3 April 1993, B. Stark, 9 larvae ( BPS) . Rials Creek, Hwy 43, Merit Water Park , 4 April 1991, B. Stark, 1 larva ( BPS) .

Mature larva. Body length 5.7-6.7 mm. General color brown with obscure pattern. Anterior pronotal margin with approximately 6-10 moderately long setae on corners and posterior margin with two long thin setae on corners. Mesonotal wingpads with ca. 7-10 outer marginal setae, metanotal wingpads with ca. 16-20 outer marginal setae; inner marginal setae absent. Forelegs without ventral tibial fringe but mid and hindlegs with at least sparse fringes. Abdominal terga without pale mesal spots; posterior fringes on terga 8-9 include short and interspersed long setae; median field of fringes consist of moderate length, slightly thinner setae than those more laterad of innermost long thin setae. Cerci consist of 13 segments, vertical fringe developed on segments 8- 13; longest dorsal setae in segmental whorls of mid cercal segments slightly longer than segments.

Comments. Brown & Stark (1995) provided the first larval description of this species but did not include details of the ventral tibial fringes for mid and hind legs. See additional comments above for A. furcula .