Karumbe, Arriaga-Varela & Tomaszewska & Szawaryn & Robertson & Seidel & Ślipiński & Fikáček, 2023
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publication ID |
https://doi.org/ 10.1093/zoolinnean/zlac082 |
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publication LSID |
lsid:zoobank.org:pub:99842C3A-879F-4552-96B7-204D79CF3EDF |
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DOI |
https://doi.org/10.5281/zenodo.7814185 |
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https://treatment.plazi.org/id/03C2CE00-FFF7-FF8E-3D7C-0ECEFD47457E |
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Plazi |
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Karumbe |
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GEN. NOV. |
KARUMBE ARRIAGA- VARELA, TOMASZEWSKA & SZAWARYN GEN. NOV.
( FIGS 6–11 View Figure 6 View Figure 7 View Figure 8 View Figure 9 View Figure 10 View Figure 11 )
Zoobank registration: urn: lsid: zoobank. org:act: 50E490DD-3714-457E-9E27-69DABA334956:
Type species: Karumbe geiseri sp. nov. by present designation.
Diagnosis: Karumbe can be distinguished from other genera in Cerasommatidiidae by the following combination of characters: dorsal surfaces of head, pronotum and elytra homogeneously covered by moderately long suberect setae ( Figs 6A–F View Figure 6 , 9E View Figure 9 , 10C View Figure 10 , 11B, D View Figure 11 ); lateral margins of pronotum with an internal subparallel carina demarcating a wide area, and anterior pronotal margin bordered with internally crenulate bordering line ( Figs 9C View Figure 9 , 10C View Figure 10 , 11B View Figure 11 ); prosternal process moderately to distinctly wide, possessing long lateral carinae extending anteriorly much beyond prosternal process ( Figs 7F View Figure 7 , 9D View Figure 9 , 10B View Figure 10 , 11C View Figure 11 ); trochanters flattened and expanded posteriorly to cover the tibio-tarsal joint ( Figs 7I, K View Figure 7 , 9F View Figure 9 , 10E, F View Figure 10 , 11F View Figure 11 ); abdominal ventrite 1 with complete laterally, semicircular postcoxal lines ( Figs 7M View Figure 7 , 11F View Figure 11 ); aedeagus with tegmen fused at base with penis ( Fig. 8B, E View Figure 8 ). The crenulate bordering line of the anterior margin of the pronotum ( Figs 9C View Figure 9 , 10C View Figure 10 , 11B View Figure 11 ) (simple in Cerasommatidia , Yamuy and MahaƲelo ), distinctly and comparatively widely bordered pronotal base and the homogeneous moderately long suberect setae on dorsal surface are peculiar to this genus (tiny inconspicuous setae are present in Cerasommatidia and MahaƲelo , while Yamuy has two kinds of vestiture: tiny decumbent hairs and sparse, long erect setae).
Description: Length 0.90–1.45 mm. Body short oval and moderately convex, 1.25–1.30 times as long as wide, around 2.0 times as long as high. Coloration light to dark brown, usually with paler legs, antennae and palpi ( Fig. 6A–F View Figure 6 ).
Head with dorsal surface homogeneously covered with moderately long setae ( Fig. 9A View Figure 9 ). Clypeus large, rectangular ( Fig. 9A View Figure 9 ). Frontoclypeal suture distinct, straight. Ventral antennal grooves short, not extending to posterior eye level ( Fig. 9A View Figure 9 ). Antenna approximately 0.35–0.40 of body length; antennal club ( Figs 7A View Figure 7 , 11A View Figure 11 ) one quarter of total antennal length; antennomeres 1–5 longer than wide, with antennomere 5 longer than neighbouring antennomeres 4 and 6; antennomeres 6–9 variable. Eyes comparatively large, moderately prominent ( Figs 7A View Figure 7 , 9A View Figure 9 ). Galea large, densely setose at apex ( Fig. 7C View Figure 7 ). Lacinia weakly narrower than galea with dense setae at apex and inner margin. Labium with mentum widest near midlength or basal third; terminal palpomere short and rounded to elongate and acuminate, 1.2–2.2 times as long as wide at base ( Figs 7D View Figure 7 , 9B View Figure 9 , 10A View Figure 10 ).
Prothorax. Pronotum 2.1–2.2 times as wide as long, widest at base and strongly convergent anteriorly, 1.7– 1.9 times wider at widest part than on front angles ( Figs 9C View Figure 9 , 10C View Figure 10 , 11B View Figure 11 ). Anterior margin bordered with densely crenulate bordering line; base of pronotum sinuate with margin comparatively widely bordered with less distinctly crenulate, well-developed bordering line. Pronotal sides scarcely rounded, area between lateral edge and carina weakly to distinctly concave, wide and continuously weakly narrowing posteriorly; hind angles with small, oblique indentation to receive humeral corner of elytron. Pronotal disc moderately convex, with sparse punctures provided with moderately long, thick setae. Prosternum with anterior margin scarcely arcuate posteriorly ( Figs 7F View Figure 7 , 9D View Figure 9 , 10B View Figure 10 , 11C View Figure 11 ); prosternal process comparatively wide, at apex about 0.7–0.9 of width of procoxal cavity, with raised lateral carinae extending anteriorly well beyond level of anterior margin of procoxal cavities; with area between carinae weakly concave; prosternal process extending posteriorly to hind level of procoxae. Hypomeron with deep and long, weakly sinuate antennal grooves ( Figs 7F View Figure 7 , 9D View Figure 9 , 10B View Figure 10 , 11C View Figure 11 ).
Pterothorax.Scutellar shield small, transverse, weakly rounded at apex ( Fig. 7G View Figure 7 ). Mesoventrite with intercoxal process smooth, almost flat with anterior raised border incomplete medially ( Figs 7I View Figure 7 , 9F View Figure 9 , 10E View Figure 10 , 11C View Figure 11 ), 1.1–1.4 times as wide as mesocoxal diameter. Metaventrite as long as abdominal ventrites 1–3 together; with remnants of short discrimen ( Fig. 7I View Figure 7 ); anterior margin bordered with carina weekly widening towards lateral corners, at intercoxal process bordering line weakly crenulate; central area with small to large and deep setiferous punctures. Anterior part of metanepisternum with small outer blunt projection ( Fig. 7I View Figure 7 ). Elytra 0.65–1.35 mm long, about as long as wide, 2.7–3.1 times as long and 1.4 times as wide as pronotum, with lateral margins scarcely to not explanate ( Fig. 6A, C, E View Figure 6 ). Surface with moderately dense and deep setiferous punctures ( Figs 9E View Figure 9 , 11D View Figure 11 ), deeper and larger than those on pronotum, bearing moderately long suberect setae; with additional intermixed shallow foveolate punctures. Epipleura moderately wide, narrowing to apex, complete at apex, with internal bordering line narrow, present from the level of mid coxae to apex. Hindwings well developed, without anal lobe, with single reduced anal vein, and median fleck present, undivided ( Fig. 7H View Figure 7 ).
Legs. Trochanters roundly or angulately produced posteriorly ( Figs 9D, F View Figure 9 , 10E, F View Figure 10 , 11F View Figure 11 ). Meso- and metatrochanters with posterior margin as a laminar expansion that covers tibio-tarsal joint when retracted. Femora flattened (mid and hind femora more distinctly than fore femora) with grooves for tibiae present throughout whole length. Claws with distinct quadrate tooth at base ( Fig. 7L View Figure 7 ).
Abdomen with ventrite 1 anteriorly with marginal carina forming distinct, rounded and complete laterally postcoxal lines, extending posteriorly to nearly midlength of ventrite 1 ( Figs 7M View Figure 7 , 11F View Figure 11 ).
Male genitalia ( Fig. 8B, E View Figure 8 ). Aedeagus with penis short and stout, sclerotized, curved apically, asymmetric, with ramificate apex ( Fig. 8B, E View Figure 8 ). Tegmen fused to penis, submembranous, throneshaped, short or basally elongate; tegminal strut short, reduced.
Female genitalia. Spermatheca moderately large, elongate-reniform, submembranous; sperm duct short; accessory gland small membranous, of irregular shape ( Fig. 8C, F, G View Figure 8 ).
Etymology: Karumbe is the Guaraní word for ‘turtle’. Gender feminine.
Species included: Karumbe brethesi , K. geiseri and K. pakaluki .
Distribution: Brazil, Grenada, Venezuela ( Fig. 20A, B View Figure 20 ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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