Chelonus scabrosus
author(Szépligeti, 1896)
synonyms
body
shape3.5 - 4 mm [S2]. ♀ 4.0 - 4.2 mm, ♂ 3.8 - 4.0 mm [P3]. ♂ 3.6 mm [TL]. 3.8 - 4.0 [T14].
colorBlack, matt-glossy [S2]
head
shapeEye in dorsal view just longer than temple [P3]. Head in dorsal view (Fig. 2) transverse, twice as broad as long, eye 1.2 times as long as temple, temple rounded, occiput excavated. Ocelli middle sized and forming a low triangle, hind imaginary tangent to fore ocellus touching hind pair of ocelli; OOL = POL. Eye in lateral view (Fig. 3) 2.2 times as high as wide, temple beyond temple a bit wider than eye, evenly wide. Malar space 1.2 times as long as basal width of mandible. Face 1.7 times as wide as high, inner margin of eyes moderately converging ventrally. Clypeus (Fig. 4) 1.9 times as wide as high, its median lower margin faintly convex. ♂ Head in dorsal view (Fig. 13) 2.0 - 2.1 times as broad as long, eye 1.1 - 1.2 times as long as temple, temple indistinctly swollen [P3]. In dorsal view temple rounded as usually, eye somewhat longer than temple, head between temples and eyes equally broad (Fig. 61); in lateral view at most slightly broader than eye (Fig. 20) [P4]. A little widened and rounded behind eyes, about as wide as mesosoma, twice as broad as long, in frontal view 1.2 times as broad as high. Ocellar triangle shorter than OOL. POL 4 times longer than Od. Temples 1.2 times as long as transverse eye diameter. In frontal view eye 2.5 times as high as long, 1.5 times as long as malar space. Face twice as broad as high and 1.5 as broad as LD, twice higher than clypeus. Maxillary palpi as long as face and clypeus combined [TL].
sculptureFace with rather concentric fine striations with anastomoses, clypeus almost smooth and shiny, Vertex, occiput (Fig. 2) and temple with fine striation and less anastomoses [P3]. Head densely and finely pointed, faintly shining. Face about eye and temple fine longitudinally striate. Vertex partially finely transversely striate. Clypeus finely punctate, shining [TL]. Face with fine concentric rugae, vertex behind ocelli with small transverse rugae [T14].
colorPalpi light brown to brown [P3][TL].
antenna
shape ♀16 segments [S2]. Antenna as long as head and mesosoma combined and with 16 flagellomeres [16 segments?]. Scape 2.5 times as long as broad apically and here obliquely truncate (Fig. 1). Third segment three times and penultimate flagellomere 1.4 times as long as broad, flagellomeres distally-gradually shortening and attenuating [P3].
shape ♂20 segments [S2]. Antenna somewhat longer than head + mesosoma combined and with 21 segments. 3rd segment 3.7-3.8 times and penultimate segment 1.6-1.7 times as long as broad [P3[P4]. Scape 1.5 times as wide as flagellum, 3 times as long as wide; 3rd segment 3 times as long as wide, apical segments 1.3-1.5 times as long as wide [TL]. Antennae 21-segmented, 3rd segment of antenna almost 4 times as long as wide, segments in apical part of antennae 1.6–1.7 times [T14].
colorThe first segments are reddish below [S2]. Scape (dark) reddish yellow, flagellum blackish [P3]. Scape partially reddish [TL]. Scape brownish yellow [T14].
mesosoma
shapeMesosoma in lateral view 1.6 times as long as high. Propodeum with a less strong transverse carina ending laterally in a pair of tubercules [P3]. 1.3 times as long as high. Propodeum with two clear medial longitudinal carinas, with well developed transverse carina and lateral tubercles [TL]. Propodeum with weak transverse carina and small lateral teeth [T14].
sculptureHind part of mesosoma and scutellum sharply and deeply furrowed [S2]. Mesosoma areolate-rugose, mesonotum rugose and medially striate, scutellum also striate [P3]. Mesonotum rugulose punctate, area before scutellum with coarser sculptured rows. Scutum anteriorly punctate and faintly shining. Sides of mesonotum roughly punctate. Scutellum-with distinct rugosity. Propodeum rugose rugulose, without clear longitudinal elements [TL]. Mesonotum with longitudinal rugae. Mesopleurae with coarse reticulate sculpture [T14].
color
legs
shape♀: Hind femur 3.1 times as long as broad distally (Fig. 5). Inner spur of hind tibia half as long as basitarsus. Hind basitarsus as long as tarsomeres 2-4 combined. ♂: Hind femur 2.9-3 times as long as broad medially (Fig. 14) [P3]. Hind femur almost 4 times as long as broad. Outer and inner spurs of hind tibiae equal, 2.5 times shorter than 1st metatarsal segment. 5th segment as long as 3rd, 1.3 times shorter than 2nd [TL]. ♀ Hind femur 3 times, ♂ 4 times as long as wide [T14].
sculpture
colorThe hind legs are black, middle of tibiae red [S2]. Legs dark brown, fore femur apically and tibiae 1-2 yellow, hind tibia brown with proximal yellow ring, tarsi 1-2 weakly brownish, tarsus 3 brownish [P3]. Coxae dark, almost black; fore femora dark-brown with yellowish apex, tibiae brown-yellowish, tarsi yellowish with brown apex; hind femora dark-brown, tibiae brown with central yellowish spot, tarsi brown-yellowish with darker apex [TL]. Hind tibia brown, only occasionally with a weak yellowish band in front of the middle; hind tarsus entirely brown [T17]. Legs brown, apex of fore femora, fore and middle tibiae, hind tibiae yellowish in the middle [T14].
wings
shapeFore wing about one-third shorter than body. Pterostigma (Fig. 6) 2.3-2.6 times as long as wide and issuing r more or less distally from its middle, r shorter than to as long as 3-SR, SR-1 straight or faintly bent [P3]. 1-R1 almost as long as length of pterostigma. Cell M 1.7 times greater than cell Sm2. 3-SR as long as r, 3.5 times shorter than SR1. 1- CU1 shorter than cu-a [TL].
colorTegula dark brown. Wings weakly brownish fumous, pterostigma brown, veins light brown, basally yellow [P3]. ♀: Wings slightly brownish-darkened. ♂: wings darkened [T14].
metasoma
shapeMetasoma as long as head and mesosoma, elliptical. Basal carinae absent [S2]. ♀ Carapace in dorsal view (Fig. 7) somewhat globose, 1.6 - 1.66 times as long as broad medially, apically rounded. Pair of basal keels short. Carapace in lateral view 2.4-2.5 (-2.7) times as long as high behind, behind rather truncate. In ventral view aperture shorter than carapace itself, i.e. apically incurved (Fig. 9, see arrow). ♂ Carapace in dorsal view not globose (Fig. 15), 1.8-1.9 times as long as broad behind, somewhat pointed apically and somewhat less strongly striate. Carapace in lateral view 2.7-2.8 times as long as high behind (Fig. 16). [P3]. Carapace incurved ventrally, i.e. ventral cavity one-fifth shorter than carapace itself (Fig. 21) [P4]. Carapace oviform, 1.8 times as long as maximal broad, laterally incurved on 0.3 height of apex. In lateral view obviously enlarged posteriorly, 3 times as high posteriorly as anteriorly [TL]. ♀ Metasoma length usually 1.6 – 1.8 times its width [T17]. ♀: Mesosoma length 1.6 times its height [?]. Metasoma oval, evenly rounded at apex, apically slightly bent forward, 1.7 times as long as wide. ♂: Metasoma slightly widened towards apex, slightly angular in apical part, 1.8–1.9 times as long as wide [T14].
sculpturemetasoma sharply and deeply furrowed [S2]. Carapace strongly and longitudinally striate with less anastomoses, its hind third rugose-striate [P3]. Carapace strong rugulose with longitudinal almost rectilinear undulations, at least on its 2/3 (even more) [TL]. Metasoma with coarse longitudinal rugae [T14].
color
♀ ovipositorOvipositor short and concealed [P3]. The ovipositor is hidden or weakly protruding [T14].
♂ apertureMale aperture is three times as wide as high, top border covered with brownish bristles [S2]. Apical foramen of carapace (2-)3-4 times as wide as high (Figs 17-18) [P3]. AMA bean-formed, in back view of posterior end 0.6 times as broad as carapace and about 0.3 height of carapace; in lateral view about 0.2 times as long as carapace [TL]. The apical opening occupies almost its entire width [T17]. Apical aperture elongate-oval, its width is much more than half the width of the metasoma, 3-4 times its height [T14].
other info
distributionCzechia, Hungary, Romania, Moldavia [P3]. BE, CZ, GB, NL, PL [FE].
remarks
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