Anacroneuria

Stark, Bill P. & Baumann, Richard W., 2011, Records Of Anacroneuria (Plecoptera: Perlidae) From Bolivia And Paraguay With Descriptions Of Three New Species, Illiesia 7 (19), pp. 182-191 : 188-189

Anacroneuria PA-2

( Figs. 19-21 )

Material examined. PARAGUAY: Amambay Department, Rio Ypane, cerca Pedro Juan Caballero , 25 November 1956, C.J.D. Brown, 1♀ (BYUC) .

Adult habitus. General color pale brown, patterned with brown pigment. Head with a brown V-shaped pattern over ocelli and curving outwards toward anterior margins of eyes ( Fig. 19 ). Lappets and antennae pale brown, palpi paler. Hind femora entirely pale, tibiae pale except for small brown areas on distal and proximal ends. Wings transparent, veins pale brown.

Male. Unknown.

Female. Forewing length 15.5 mm. Subgenital plate four lobed; inner lobes separated by a wide, shallow notch ( Fig. 21 ), lateral lobes separated by shallow notches. Sternum 9 with obscure posterior sclerite; median sclerite covered laterally and along posterior margin with long setae, basal, median area covered with fine, short setae.

Egg. Spindle shaped, long, slender and bearing a small, membranous cap ( Fig. 20 ).

Larva. Unknown.

Comments. This female was collected with the holotype of A. ypane and appears distinct from it on the basis of color pattern, and from others known from Paraguay ( Froehlich 2002). We are also not able to match it with others known from the region.

Figures

Figs. 16-24. Anacroneuria sp. unassociated females. 16-18. PA-1. 16. Head and pronotum. 17. Egg. 18. Female sterna 8-9. 19-21. PA-2. 19. Head and pronotum. 20. Egg. 21. Female sterna 8-9. 22-24. PA-3. 22. Head and pronotum. 23. Egg. 24. Female sterna 8-9.