Anaulacomera (Anaulacomera) blancoi Nogueira & Fianco, 2025

Anaulacomera (Anaulacomera) blancoi Nogueira & Fianco View in CoL sp. nov.

urn:lsid:zoobank.org:act:29FC045E-FAED-4F3C-BC50-DFD16C260564

( Figure 1A–H View FIGURE 1 , 5A–C View FIGURE 5 )

Diagnosis: The new species is readily distinguished from its congeners by the combination of the following characters: lateral carinae on the pronotum yellow, posterior margin of the male subgenital plate sinuous, sclerotized area of the male cercus elongated.

Description: Holotype male ( Fig. 1 View FIGURE 1 , 5A, B View FIGURE 5 ): Small, green, lateral carinae of pronotum yellow ( Fig. 1A, B, C View FIGURE 1 ), stridulatory area brownish ( Fig.1D, E View FIGURE 1 ). Head ( Fig. 1B, C View FIGURE 1 ): fastigium of the frons triangular; apex rounded; fastigium of the frons not touching the fastigium of the vertex; a large whitish ocellus in the middle. Antennal sclerites dilated at the apex near fastigium of the vertex and slightly expanded at the base of the fastigium of the frons. Fastigium of the vertex slightly elevated; hourglass-shaped; apex straight, with a sulcus on middle, not present in the basal region and not reaching the apex; lateral edges reddish to purplish ( Fig. 1B View FIGURE 1 ). Yellowish band extends from eyes to pronotum ( Fig. 1C View FIGURE 1 ). Eyes brownish; medial region, near fastigium of vertex, reddish to purplish, and yellowish near vertex. Thorax: Pronotum green with small brownish spots. Pronotal disc with anterior margin slightly concave; posterior margin convex; furcal sulci U-shaped, but with elongated tips; sulcus on the metazona; a medial sulcus extends from prozona to the posterior margin. Lateral carinae quite evident and prominently yellow ( Fig. 1B View FIGURE 1 ). Lateral lobes ( Fig. 1C View FIGURE 1 ) slightly longer than high; anterior margin slightly concave; posterior margin convex, demilune shaped; inferior margin slightly sinuous; humeral sinus forms an angle of ca. 75º. Tegmina shorter than hindwings ( Fig. 1A, D View FIGURE 1 ), with parallel anal and costal margins; ScA vein small and curves toward the costal area; ScP vein long, nearly reaching apex of the tegmen; eight crossveins from ScP to the costal margin; R vein follows the ScP along its entire length; RP vein leaving R before the middle of the tegmen; RP branching further branches shortly after the tegmen’s midpoint; RA branching near the tegmen’s distal end; M vein straight until halfway along the tegmen, curved towards the anal margin, remaining long, and without major bifurcations; several group extend from the M vein towards the anal margin; A1 vein brown ( Fig. 1D, E View FIGURE 1 ); stridulatory brownish ( Fig. 1E View FIGURE 1 ). Femur III at least 3.2 times longer than the pronotum. Mesobasisternum triangular, with a concave anterior margin; lateral lobes reduced and triangular. Metabasisternum globose, elevated at the middle, with a convex anterior margin and rounded lateral lobes. Abdomen: Tergite X not projected backwards; depressed in the middle of posterior region. Epiproct triangular and moderately long. Cercus ( Fig. 1F, G, H View FIGURE 1 ) gracile, curved inwards along its entire length, with a more pronounced curvature at base, gradually tapering to the apex, ending in a long dark brown, almost black, spiniform process. Subgenital plate ( Fig. 1D–F View FIGURE 1 ) long; slightly curved upwards; base wider than the apex; posterior margin sinuous, forming stilliform processes; apex wider than the middle region; a carinae from lateral region of base to stilliform processes.

Female ( Fig 5C View FIGURE 5 ): Larger than male, colouration and general morphology as male. Ovipositor long, at least 3.6 times longer the length of the pronotum, and curved upwards. Subgenital plate longer than wide, bifid at apex.

Type material: Holotype male, ‘ Brasil, PR, Matelândia, Prq. \ Nacional do Iguaçu , 220m \ 25.3627ºS, 53.8100ºW \ 06–09.xi.2021 Coleta ativa \ diurna M. Fianco & N. Szinwelski col.’, deposited at “Coleção Entomológica Padre Jesus Santiago Moure” ( DZUP) GoogleMaps . Paratypes: one male same data as Holotype, deposited at MNRJ GoogleMaps ; three males same data but ‘ coleta ativa / noturna’, one deposited at MNRJ and two at DZUP GoogleMaps ; and one female same data, deposited at DZUP GoogleMaps .

Measurements (mm): Holotype: BL: 16; TegL: 23; PrL: 4,3; PrH: 3; FLiii: 14; TLiii: 16; SPL: 4.1; CL: 2.5; SFL: 0.9. Male paratypes: BL: 13–16; TegL: 23–25; PrL: 4–5; PrH: 2.5–3; FLiii: 15; TLiii: 15; SPL: 2.5–3.2; CL: 1.9–2.4; SFL: 0.9. Female paratype: BL: 17; TegL: 24; PrL: 3.1; PrH: 2; FLiii: 15; TLiii: 17; OL: 12.

Etymology: The specific epithet honours Prof. Dr. Daniel Rodrigues Blanco, a geneticist, evolutionist, and nature lover. Prof. Blanco was a member of the Floriano Project, through which individuals of this species were collected in Iguaçu National Park. Daniel passed away in May 2023, days before his first fish-collecting expedition for the project he helped design.

Comparison: the new species is classified in the Gracilis Group, based on the male cerci which are curved and without ramifications and, in addition, to the absence of modifications in the X tergite. Males of the Gracilis Group as A. (Anaulacomera) argentina Rehn , A. (A.) borgmeiere (Piza) , A. (A.) gracilis Brunner von Wattenwyl, A (A.). hernandezi Cadena-Castañeda, A. (A.) longicercata (Brunner von Wattenwyl) and A. (A.) unicolor Brunner von Wattenwyl exhibit similar cerci, but the new species is distinguished by a longer sclerotized area on the cercus, which ends in a spiniform process at the apex. Additionally, the subgenital plate of the new species is sinuous, forming a stilliform process, setting it apart from all its congeners.