Anacroneuria

Stark, Bill P. & Armitage, Brian J., 2018, The Plecoptera of Panama. II. Two new species, one new country record, and additional locality records of Anacroneuria (Perlidae) from western Panama, Zootaxa 4459 (2), pp. 315-326 : 322

Anacroneuria sp. PA-2

( Figs. 15–16 )

Material examined. PANAMA: Bocas del Toro Province: Cuenca 93 ( Río Margarita ) afluente Quebrada Rambala , Rambala Jungle Lodge , 8.91543°N, 82.15527°W, 3.74 km SE Rambala, 28 November 2014, E. Carlson, 2 ♀ ( COZEM) . Same site, 13 March 2015, E. Carlson, 1 ♀ ( BPSC) ; Chiriqui Province, Cuenca 93 (Río Guabo), afluente Río Guabo , NNE Fortuna Dam , nr. Fortuna Cabins , 8.77806°N, 82.19359°W, 1128 m, UV light, B. and T. Armitage, 21 January 2017, 4 ♀ ( COZEM) .

Adult habitus. General color yellow patterned with dark brown. Head mostly yellow but slightly darker yellow-brown on frons anterior to ocelli; lappets brown, antennae dark brown. Pronotum pale along median line, sublateral pigment bands brown with scattered rugosities ( Fig. 15 ). Femora almost entirely yellow, but a narrow distal band dark brown. Tibiae yellow. Wing membrane pale amber brown except for paler costal band extending from wing base almost to cord, and except for a transparent circular “window” extending beyond cord and posteríor to R-vein but not reaching posteríor margin of wing.

Male. Unknown.

Female. Forewing length 14 mm. Subgenital plate 4-lobed, inner lobes slightly smaller than lateral lobes ( Fig. 16 ). Abdominal sternum 9 bears a prominent T-shaped median setal patch.

Larva. Unknown.

Diagnosis. Only two species ( A. exquisita Stark, 1998 ; A. ventana Stark, 1998 ), currently known from Mesoamerica, have a transparent “window” in the apical region of the wings, but another species known from Colombia ( A. albimacula Klapálek ) also shares this feature. The females of Anacroneuria exquisita and A. ventana are unknown and males of these species have a dark ocellar marking absent from these Bocas del Toro females. Anacroneuria albimacula also has a dark ocellar marking, slightly different subgenital plate shape, and the species is currently known from a neotype ♂ and an additional female specimen from Antioquia Province in Colombia ( Stark et al. 1999).

Figures

FIGURES 15–18. Anacroneuria spp. Head and pronotum, or female subgenital plate. 15. Anacroneuria sp. PA-2, head and pronotum. 16. Anacroneuria sp. PA-2, subgenital plate. 17. Anacroneuria sp. PA-3, head and pronotum. 18. Anacroneuria sp. PA-3, subgenital plate.