Anacroneuria froehlichi, Miguel & Almeida & Novaes & Bispo, 2022

Miguel, Marina, Almeida, Lucas Henrique De, Novaes, Marcos Carneiro & Bispo, Pitágoras Da Conceição, 2022, Anacroneuria (Plecoptera: Perlidae) from Central Brazil: new species, new geographic records, and taxonomic notes, Zootaxa 5162 (5), pp. 487-506 : 502

Anacroneuria froehlichi n. sp. Miguel, Almeida & Bispo

( Figs. 11A–G )

Material examined. BR, GO. Holotype male: Chapada dos Veadeiros, Alto Paraíso de Goiás, Ribeirão Couro, Cachoeira São Bento , 13.xii.2006 , PCB ( MZUSP). Paratypes: Chapada dos Veadeiros, Alto Paraíso de Goiás, Ribeirão Saltador , 12.xii.2006 , PCB, 7 males ( CLBA); Ribeirão Saltador , 12.xii.2006 , PCB, 8 males ( MZUSP); Loquinhas , 15.xii.2006 , PCB, 1 male ( MZUSP); Ribeirão Água Fria, 14°05'28.8"S 47°29'40.9"W, 16.xii.2006 , PCB, 1 male ( MZUSP) .

Morphometric data. Holotype male, anterior wing length: 11.5 mm; paratype males (n= 17), anterior wing length: 11.5–16.0 mm.

Description. General color yellowish to ochraceous. Head and pronotum ochraceous; head with inconspicuous M-line, central frons darker, clypeus and occiput yellowish ( Fig. 11A ). Antennae ochraceous, scape with darker spot laterally. Palpi pale yellowish. Pronotum with posterior corners rounded ( Fig. 11A ). Wings with membranes ochraceous and conspicuous veins. Presence of 4 to 8 transverse veins between the medial and anterior cubital veins. Legs yellowish with darker stripe in distal part of the femur. Abdomen pale yellowish. Sternum IX with small bristles on posterior margin; hammer as a short truncate cone ( Fig. 11D ). Penial armature, in dorsal view ( Fig. 11E ), tapering gradually up to the level of distal part of the hooks where there is a rounded expansion, which subsequently narrows sharply in an elongated final process; in ventral view ( Fig. 11F ), with pair of large distal vesicles and with hooks regularly curved with tips pointed; in the lateral view ( Fig. 11G ), with the apex slightly inclined ventrally. Cerci ochraceous.

Remarks. Anacroneuria froehlichi was collected in the streams of Chapada dos Veadeiros, northern Goiás state. This species has a color pattern common to several species of the genus. A. froehlichi has penial armature (in dorsal view) with an abruptly narrowed apex, forming a slender process. This penial armature shape of A. froehlichi is unique, easily distinguishing it from other species of the genus.

Etymology. The name honors Claudio Gilberto Froehlich, a pioneer in Plecoptera research in South America.

Figures

FIGURE 11. Male adult holotype of Anacroneuria froehlichi n. sp. A: head and pronotum; B: anterior wing; C: posterior wing; D: sternum IX with hammer; E: penial armature in dorsal view; F: same, ventral view; G: same, lateral view. Scale 1 mm.