Anacroneuria calori, Duarte & Lecci, 2016

Duarte, Tácio & Lecci, Lucas Silveira, 2016, New species and records of Anacroneuria (Plecoptera: Perlidae) from the northeastern semi-arid region of Brazil, Zootaxa 4079 (2) : 294-297

Anacroneuria calori n. sp.

( Figs. 2A–D and Figs. 3A–F )

Type Material. Holotype, male: BR, CE: Ubajara, Serra da Ibiapaba, Parque Nacional de Ubajara, Cachoeira Cafundó, 03°50'10.9''S, 40°54'39.2''W, 826m, light trap, 22.x.2011, VG & TD. Paratypes: same data as holotype, except for: 4 males, 7 females; same data, except for: light pan trap, 22.x.2011, VG & TD, 4 males, 3 females; same data, except for: 28.x.2011, VG & TD, 5 males, 4 females; same data, except for: Córrego Gavião, 03°49'50.6''S, 40°54'36.8''W, 833m, light pan trap, 26.x.2011, VG & TD, 2 males; CE, Crato, Nascente do Engenho da Serra, 07°08'5.9''S, 39°34'32.1''W, 726m, light trap, 05.ii.2011, FQ & AC, 4 males; same data, except for: Sítio Fundão, Rio Batateiras, 07°13'47.7''S, 39°26'8.4''W, 436m, light trap, 07.ii.2011, FQ & AC, 1 male; CE, Barbalha, Município de Arajara, Arajara Park, Gruta do Farias, 07°19'58.3''S, 39°24'46.6''S, 745m, 24.vii.2009, ARC & LL, 2 females.

Description. A small sized species. Holotype, male: forewing length, 11 mm. Paratypes, males (n= 19): forewing length, 10–11 mm; females (n= 16): forewing length, 15–17 mm.

General color light brown. Head and pronotum light brown (specimens from Ubajara) to yellowish (specimens from Crato); central frons area brown in males (specimens from Ubajara), yellowish in females; clypeus and occiput ochraceous to yellowish ( Figs. 2A, B, C ). Antennae with scape brownish, lighter basally; pedicel and flagellum brownish. Palpi light brown. Pronotum light brown, two strips darker laterally and lighter median strip; anterior corners rounded, posterior corners rounded. Membrane and veins of wings brownish ( Fig. 2D ). Legs ochraceous with dark strip in distal part of the femur. Cerci light brown.

Male. Sternum IX with dark posterior strip; row of thick bristles in lateral corners ( Fig. 3A ). Hammer simple truncate cone. Penial armature ( Figs. 3B, C, D ) with pair of large distal vesicles. In dorsal view, terminal tube opens into a long gonopore, conical at base ( Fig. 3C ). Gonopore robust in lateral view, distal region curved, median region sinuous with a small elevation ( Fig. 3D ). Hooks regularly curved and acute apically.

Female. Subgenital plate ochraceous, 4-lobed; lateral lobes larger than median lobes, sinuous ( Fig. 3E ). Sternum VIII with thick bristles laterally; median lobes with small sclerotized band. Sternum IX with field of long bristles. Egg conical, simple ( Fig. 3F ).

Remarks. All specimens from Serra da Ibiapaba, Ubajara have the head and pronotum light brown, whereas specimens from Crato are more yellowish. However, specimens from both localities have identical penial armature. The penial armature resembles to that of A. terere , however the median region of the terminal tube in A. calori is sinuous with a small point whereas in A. terere it is concave. In addition, the distal vesicles are present in A. calori and absent in A. terere . The female lateral lobes resemble A. cathia Froehlich, 2002 , A. rondoniae Froehlich, 2002 , and A. subcostalis Klapálek, 1921 . However, in A. calori the median notch is not as wide and not as deep.

Etymology. The specific name calori is in honor to Dr. Adolfo R. Calor for his contributions to the knowledge of aquatic insects of Brazil. The name is a noun in apposition.

Figures

FIGURES 2 A – D. Anacroneuria calori n. sp. A. Holotype adult male, head and pronotum. B. Female head and pronotum. C. Male from Crato, State of Ceará, Brazil. D. Forewing of holotype male.

FIGURES 3 A – F. Anacroneuria calori n. sp. A. Holotype adult male, sternum IX with hammer. B. Penial armature of the male in ventral view. C. Dorsal view. D. Male penial armature in lateral view, indicating the terminal tube. E. Female terminalia, ventral view. F. Egg.