Cylindrostethus palmaris Drake & Harris, 1934

Canejo, Rafael P. R., Melo, Alan Lane De & Rodrigues, Higor D. D., 2023, Gerromorpha (Insecta: Hemiptera: Heteroptera) from the state of Rio Grande do Norte, northeastern Brazil, including a new synonymy, Zootaxa 5357 (2), pp. 151-185 : 154

Cylindrostethus palmaris Drake & Harris, 1934

( Figs. 1D–G , 3A )

Cylindrostethus palmaris Drake & Harris, 1934: 222 (original description).

Identification. Our apterous specimens were identified based on the body color mostly yellow, with the lateral black stripes of the pronotum as wide as the central yellow stripe ( Figs. 1D, F ); the apex of abdominal sternum VII of the males emarginated medially ( Fig. 1E ); the basolateral processes of the male proctiger shorter than wide; and abdominal tergum VIII of the female with the apex acute ( Figs. 1F–G ) ( Floriano et al. 2016b).

Discussion. This species was previously recorded in Rio Grande do Norte from Parnamirim municipality by Rodrigues et al. (2012).

Material examined. BRAZIL, Rio Grande do Norte: Natal,ponte no Rio Pitimbu , 5°55’00.7”S, 35°11’54.0”W, 04-III-2018, R . P. R. Canejo leg. (22♂, 29♀ apterous CEAAVF) ; Natal, Rio Pitimbu - BR101 , 5°52’48.1”S, 35°13’32.6”W, 24-V-2018, R . P. R. Canejo leg. (1♂ apterous, 1♀ macropterous CEAAVF) ; same data, except 22-XII-2019 (22♂, 29♀ apterous CEAAVF); Parnamirim, Rio Pitimbu, Vale Encantado , 5°55’41.1”S, 35°10’46.5”W, 06- X-2019, R . P. R. Canejo leg. (8♂, 19♀ apterous CEAAVF) ; same data, except 17-VI-2022 (1♀ apterous CEAAVF) .

Figures

FIGURE 1. Species of Gerridae from state of Rio Grande do Norte. (A–C) Brachymetra albinervus, (A) dorsal and (B) ventral views of apterous male, (C) lateral view of apterous female. (D–G) Cylindrostethus palmaris, (D) dorsal and (E) ventral views of apterous male, (F) dorsal view of apterous female, (G) dorsal view of macropterous female. Scale bars = 1.00 mm.

FIGURE 3. (A–B) Distribution records for species of Gerromorpha in state of Rio Grande do Norte, northeastern Brazil.