Nyctantonina breviclasma Vélez, 2013

Vélez-Bravo, Andrés, 2013, One new genus of cockroach in the Neotropical subfamily Nyctiborinae (Dictyoptera: Blattodea: Ectobiidae), Zootaxa 3681 (1), pp. 79-84 : 81-83

publication ID	https://doi.org/ 10.11646/zootaxa.3681.1.5
publication LSID	lsid:zoobank.org:pub:9F40015E-366D-4838-B391-CF7D89A39002
DOI	https://doi.org/10.5281/zenodo.6160343
persistent identifier	https://treatment.plazi.org/id/E16FF05F-FFEF-FFB3-65C2-9A68D554FD46
treatment provided by	Plazi
scientific name	Nyctantonina breviclasma Vélez
status	sp. nov.

Treatment

Nyctantonina breviclasma Vélez View in CoL sp. nov.

( Figures 1 View FIGURES 1 – 2 , 3–8 View FIGURES 3 – 14 )

Type material. Holotype male, Guatemala: Alta Verapaz, 57.6 km. N. El rancho on new Coban Highway, 1464 m, Erwin and Hevel, 30 May. 1973 ( USNM). Paratypes: Mexico: two males, Chiapas, La Trinitaria, L.A. Kelton, Aug. 1969 ( CNC).

Differential diagnosis. N. breviclasma differs from N. pteromacrotata by 1) Tegmina shortest, which slightly surpassing apex of the cerci; 2) Supra-anal plate with caudal margin produced and rounded; 3) Only the subregion R1d projected over the complex R 1t +R2 and 4) The projection of the left arm (R2), with convex right lateral margin.

Description. General habitus as in generic description; medium size (19 mm male), with body, legs and antennae dark brown. Pronotum and tegmina reddish brown ( Fig. 1 View FIGURES 1 – 2 ).

Male with both pairs of wings slightly surpassing apex of the cerci.

Supra-anal plate with caudal margin produced and rounded ( Fig. 3 View FIGURES 3 – 14 ); cerci long and cylindrical, with 11 segments, the last segment oval and narrower than the other segments ( Fig. 3 View FIGURES 3 – 14 ); ventrally, right paraproct straight and claw-shaped ( Fig. 4 View FIGURES 3 – 14 ). Male subgenital plate slightly asymmetric, with styles similarly shaped, with left style longer than the right style and distally located on the caudal margin ( Fig. 5 View FIGURES 3 – 14 ).

Genital sclerites: region R1 as a large and bulky structure at the base of sclerite R; subregion R 1v broader than the subregion R1d, the latter as a narrow and elongated stripe extending along the caudal and the left lateral margin of R1; only the subregion R1d projected over the complex R 1t +R2 ( Fig. 8 View FIGURES 3 – 14 ); this projection ending in the lateral margin of subregion R 1t. Projection of the left arm (R2) with convex right lateral margin ( Fig. 8 View FIGURES 3 – 14 ). Apex of R2 extended beyond the caudal margin of R3. Complex R 1t +R2 located near the lower left corner of region R3, below the projection of R1d, nearly half the size of region R3.

Caudal margin of region R3 with a middle projection articulating to subregion R 1v ( Fig. 8 View FIGURES 3 – 14 ).

Measurements (mm). Body length 19; pronotum length × maximum width 5.0–5.2 × 8.5–9.0; tegmen length × width 16.8–19.0 × 7.2–8.2; interocular width 0.3; interantennal width between sockets 1.0–1.2.

Etymology. Brevis (L) = short, klasma (Gr) = fragment, piece. The name refers to the short right arm (R 1t) of the complex R 1t +R2, which only reaches one-fifth the length of the right arm (R2).

Distribution. Central America ( Guatemala, Mexico).