Pseudoscopas rubromaculatus, Costa & Acosta & Timm & Zefa, 2025

Pseudoscopas rubromaculatus View in CoL sp. nov. Matiotti da Costa, 2024

( Figs 1A–1B View FIGURE 1 ; 2A–M View FIGURE 2 )

Type locality. Parque Natural Municipal Saint’Hilaire , Viamão, State of Rio Grande do Sul, Brazil (30° 6’14.48”S, 51° 4’59.44”W) ( Fig. 9A–D View FIGURE 9 ) GoogleMaps .

Depository. Holotype and allotype of Pseudoscopas rubromaculatus sp. nov. (01 male and 01 female). Museu de Ciências e Tecnologia da PUCRS ( MCTP) .

Etymology. The specific epithet refers to the color of the body reddish and spots.

Diagnosis. (i) reddish body, with spots in dorsal and ventral; (ii) epiproct subtriangular with six rounded protuberances in median region; (iii) cerci with sclerotized extremities; (iv) furculae undivided; (v) lophi prominent subsquared and sclerotized.

Description. Male ( Figs. 1A View FIGURE 1 , 2A–H View FIGURE 2 )

Body medium in size (15 mm length), moderately robust and deeply pubescent, especially the abdomen. Micropterous. Head. Front slightly oblique ( Fig. 2C View FIGURE 2 ), head as wide as the pronotum ( Fig. 2B View FIGURE 2 ). Antennae filiform, with 18 antennomeres. Eyes with globular interocular space narrow ( Fig. 2B View FIGURE 2 ). Fastigium subtriangular, short, with apex of vertex slightly rounded, with two very conspicuous sulcus ( Fig. 2B View FIGURE 2 ). Thorax. Pronotum with median carinae slightly marked, and lateral absent ( Fig. 2B View FIGURE 2 ); metazona shorter than prozona; pronotum disc crossed by three transverse sulci; pronotum lateral edges parallel, slightly expanding in the metazona; anterior margin straight and, posterior with slight median emargination ( Figs 2B–C View FIGURE 2 ). Prosternal process spiniform ( Fig. 2D View FIGURE 2 ). Mesosternal lobes subrounded ( Fig. 2D View FIGURE 2 ). Tegmen short, lobuliform, reaching to the second abdominal segment ( Fig. 1A View FIGURE 1 ). Legs. Hind femur slender, the upper keel smooth, the end of lower knee lobes rounded. Hind tibiae pubescent with 7 outer and 8 inner dorsal spines. Abdomen. Thickened in distal region ( Fig. 2A View FIGURE 2 ). Tympanum large. Epiproct subtriangular in median region with six V protuberances; furculae undivided ( Fig. 2F View FIGURE 2 ). Pallium with small and salient lobes ( Fig. 2E View FIGURE 2 ). Cerci subtriangular, robust, conic, strongly curved, exceeding the epiproct apex; acute and sclerotized apex ( Figs 2E–F View FIGURE 2 ). Subgenital plate cupuliform, short, curved up, apex pointed and pubescent ( Fig. 2E View FIGURE 2 ). Phallic complex. Cingulum with long apodemes, arch developed; gonopore with a rectangular ventral projection ( Fig. 2G View FIGURE 2 ); aedeagus long with upper and lower valves of the same size; sclerites of aedeagus covered by the wide and highly lobulated ectophallic sheath ( Fig. 2G View FIGURE 2 ). Epiphallus with slightly plan bridge ( Fig. 2H View FIGURE 2 ); anchorae larger in size than of the anterior projections; lophi prominent and sclerotized; without internal conical protuberance ( Fig. 2H View FIGURE 2 ).

Coloration

Body reddish ( Figs 1A View FIGURE 1 , 2A, 2D View FIGURE 2 ). Head mostly brown light, with a black pair of retro-ocular bands that take part of the genae and continue in the dorsal half of the pronotum lateral lobes reddish, Antennae brown. Fastigium of the vertex with reddish spots ( Fig. 2B View FIGURE 2 ). Occiput marked with reddish spots. Face, clypeus, and genae greenish; mandible and labrum reddish; labial and maxillary palpi greenish ( Fig. 2D View FIGURE 2 ). Reddish interocular space and reddish dorsal spots at the end of the eyes. Pronotum dorsally with several punctures and brown spots and narrow ivory-colored dorsal band across the entire length of the pronotum ( Fig. 2B View FIGURE 2 ). Lateral lobes of the pronotum with an ivory band on the lower abdomen ( Fig. 2C View FIGURE 2 ). Tegmen with veins light brown, a narrow ivory band surrounding the dorsal portion; hindwing tricolor with dorsal green/brown, medial white and ventral black ( Figs 1A View FIGURE 1 , 2A View FIGURE 2 ). Genicular lunules black. Legs I, II and III green, with pretarsus tip, arolium and claws brown color; with genicular lobe black; tibiae light green ( Figs 1A View FIGURE 1 , 2A View FIGURE 2 ). Abdomen. pallium reddish in dorsal and ventral view ( Figs 2A, 2D View FIGURE 2 ); lateral sclerites of the abdomen reddish from the second segment ( Fig. 1A View FIGURE 1 ).

Female. Larger in size than male, robust (body length 19 mm) ( Figs 1B View FIGURE 1 , 2I–M View FIGURE 2 ). Head dorsal green ( Fig. 2J View FIGURE 2 ); fastigium more prominent and wider than in males, and with green spots; eyes more prominent, retro-ocular bands take part of the genae and continue in the dorsal half of the pronotum lateral lobes reddish ( Fig. 2K View FIGURE 2 ); interocular space wider ( Fig. 2J View FIGURE 2 ). Pronotum dorsally light green, with several punctures and spots; lateral lobes of the pronotum with reddish, yellow-green and ivory bands, from upper to lower portion ( Fig. 2K View FIGURE 2 ). Abdomen segments 1 to 4 dorsally green and the other segments reddish ( Fig. 2I View FIGURE 2 ); ventrally the segments of the abdomen yellowish and sides with a black spot in between segments 3–6. Ovipositor valves short in lateral view and serrated margins absent ( Fig. 2L View FIGURE 2 ); dorsal valve of the ovipositor robust and apical tooth of the external ventral valve little prominent ( Fig. 2L View FIGURE 2 ). Hind edge of the female subgenital plate with two large lobes on both sides and without sclerotization ( Fig. 2M View FIGURE 2 ).

Legs I and II less robust than in males. Cerci short, conical, not reaching the epiproct tip and reddish in extremity ( Fig. 2L View FIGURE 2 ). Epiproct reddish subtriangular with median sulcus well marked, interrupted transversely in the median region ( Fig. 2M View FIGURE 2 )

Habitat and Habits. Individuals of P. rubromaculatus sp. nov. were collected in the forest border during the afternoon, between 3 and 4 pm, in the area containing many pteridophytes and grasses. Male and female were found close to the ground. The records of the genus Pseudoscopas are between the Pampean and Chacoan provinces ( Morrone 2001; 2006).

Measurements (mm): Male (n = 1): BL = 15.1; PL = 0.3; FL3 = 0.8; TL = 0.3. Female (n = 1): BL = 19.1; PL = 0.5; FL3 = 0.9; TL = 0.4.

Type material. Holotype ♂ and Allotype ♀ ( MCTP). BRAZIL: Rio Grande do Sul, municipality of Viamão, Parque Natural Municipal Saint’Hilaire, 12.iii.2022, Acosta , R. C. and Timm , V. F. leg . Holotype condition: genitalia were extracted and maintained in holotype’s tube.