Krikkenjanius brasiliensis ( Moser, 1910 ), 2025

Krikkenjanius brasiliensis ( Moser, 1910) View in CoL comb. n.

( Figures 1 View Figure 1 (G), 21, 22)

Genuchinus brasiliensis Moser, 1910, p. 365 View in CoL (original combination)

Cyclidinus brasiliensis ( Moser, 1910) View in CoL (new combination) by Krikken (1981): 416

Taxonomic history

Moser 1910, p. 365 (original combination). – Schenkling 1921: 377 (Catalogue). – Blackwelder 1944: 265 (catalogue). – Krikken 1981: 416 (new combination). – Krajčik 1999: 42 (catalogue). – Di Iorio 2013: 62–82 (catalogue, appendix). – Rodrigues et al. 2023 (catalogue). – Schoolmeesters 2024 (catalogue).

Description

Female. Size: length: 14.7– 13.3 mm; width: 7.1– 6.5 mm. Body: Elongate, dorsally flattened, partially velutinous ( Figure 21 View Figure 21 (A, B, E, F)). Colour: Body dorsally black with mustard-yellow macules ( Figure 21 View Figure 21 (A)); ventrally black ( Figure 21 View Figure 21 (B)); mentum, palps, and antennomeres black or dark brown. Eyes brown or yellow, when it is not dark, may have black stains. Head: Clypeal projection weakly bent upwards and arched in frontal view, with a line delimitaing clypeolateral declivity, line heavily sloped down and rounded on tips. Frons rugose anteriorly, ocellate-punctate posteriorly, slightly velutinous; antegenal protusion evident, eye-canthus rugose and often velutinous; scape semitriangular, rugose superficially, occasionally setose on the sides. Mentum with a broadly ‘V’-shaped posterior margin, rounded at the other corners ( Figure 21 View Figure 21 (B)) and setose. Pronotum: Velutinous disc with wide, rounded sides centrally and a posterolateral emargination, narrowing posteriorly ( Figures 1 View Figure 1 (G), 21 (C)); posterior corners obtuse, anterior corners almost rectangular, posterior margin broadly rounded; surface irregular, ocellate-punctate with setae emanating from the central edge of punctures, setae dense along the middle and near the margin. Scutellum: Triangular, ocellate-punctate with some lines laterally. Elytra: Elongate, with margin slightly transverse anterioly and rounded posteriorly; with one humeral and anteapical umbone in each elytron ( Figure 21 View Figure 21 (A)); surface heavily oval-ocellate-punctate in six longitudinal rows, often rugose on the margin. Thoracic venter: Hypomerum: Rugose or striate convergently, setose. Prosternum : Narrow anteriorly, with a pointed projection, setose at the anterior base and less dense at the tip. Mesoventrite: Ocellate-punctate, slightly setose. Mesepisternum: Punctate and rugose. Mesepimeron: Ocellate-punctate, rugose, slightly setose, barely visible dorsally. Metaventrite: With distinct median sulcus, strongly ocellate-punctate, smaller near the sulcus, if compared laterally; setae emanating from central edge of punctures. Metepisternum and Metepimeron irregularly ocellate-punctate with setae emanating from the central edge of punctures. Legs: Tarsus: Last tarsomere longer than the others, punctate and setose. Protibia: Punctate, sparsely setose; apical-lateral tooth enlarged centrally, crushed baso-laterally, apically pointed, slightly inclined downwards; one apical spur and five teeth: one apical-lateral, two reduced apical-ventral being one next to the apical spur, and two lateral-proximal ( Figure 21 View Figure 21 (D)). Profemur: Rugose ventrally, striate dorsally, with setae on the medial side. Metatibia: Slightly curved and longer than dorsally flattened mesotibia, both with striations forming setose cells; two pairs of apical teeth and one proximal in mesotibia, edge between proximal tooth and one of the apical pairs weakly concave, metatibia also bearing concavity but without proximal tooth; two spurs apically. Metafemur: Wider than mesofemur, both with connected striations, forming cells, or ocellate-punctate, in both case with setae emanating from central edge. Procoxa and mesocoxa rugose with setae, same for trochanter. Metacoxa: ocellate-punctate. Abdomen: Ventrites ‘c’-punctate or ocellate-punctate with setae, glossy and/or opaque ( Figure 21 View Figure 21 (B)); ventrite V weakly concave; spiracle of last tergite elevated and always visible. Pygidium: Convex, ocellate-punctate, without two parallel protuberances in the centre.

Geographical distribution

Krikkenjanius brasiliensis is only known from Brazil, in the Atlantic Forest biogeographical province ( Figure 22 View Figure 22 ).

Remarks

In the original description, the total length is 16 mm.

Type specimens examined (n = 1)

Holotype: ( Figure 21 View Figure 21 ) Labels [1 printed text on cream label] Theresopolis Brasil /[2 printed text on cream label] Michaelis /[3 handwritten text on cream label] brasiliensis Type Mos./ [4 printed text on yellow label] Zool. Mus. Berlin/[5 handwritten text on white label] photo jl79/[6 printed text on red label] Typus /[7 printed text on red label] HOLOTYPUS Cyclidinus brasiliensis ( Moser, 1910) labelled by MNHUB 2013 ( 1 ♀ MFNB).

Non-type specimens examined (n = 1)

BRAZIL: Santa Catarina: Corupá, i .1950, A. Maller ( 1 ♀ CMNC) .