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 : 189

Anacroneuria PA-3

( Figs. 22-24 )

Material examined. PARAGUAY: cerca Hernandarias , Boca de Rio Acaray, 4 November 1956, C.J.D. Brown, 2♀ (BYUC) .

Adult habitus. General color brown, patterned with pale areas. Head with a dark quadrate area covering ocelli and extending to M-line; diffuse brown pigment occurs forward of M-line and extending anterolaterally from dark pigment ( Fig. 22 ); lappets and antennae brown, palpi pale brown. Pronotum pale brown with darker rugosities and a pale median band. Hind femora and tibia brown. Wings transparent, veins brown.

Male. Unknown.

Female. Forewing length 16 mm. Subgenital plate four lobed with lobes approximately equal in size ( Fig. 24 ). Sternum 9 with a wide, well developed posterior sclerite which bears prominent setae over most of length but bare mesally; mesal sclerite bearing long setae posterolaterally and fine setae basally and mesally.

Egg. Spindle shaped moderate in length and broadly rounded at anterior pole. Collar bears a small membranous cap ( Fig. 23 ).

Comments. The subgenital plate of this species is generally similar to that of A. debilis ( Froehlich 2002) but the egg and color pattern are distinct.

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.