Karumbe pakaluki Arriaga-Varela, Tomaszewska, Szawaryn, Robertson, Seidel, Ślipiński & Fikáček, 2023, SP. NOV.
Creators: name: Arriaga-Varela, Emmanuel
name: Tomaszewska, Wioletta
name: Szawaryn, Karol
name: Robertson, James
name: Seidel, Matthias
name: Ślipiński, Adam
name: Fikáček, Martin
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Mycetaeidae
Karumbe
Karumbe pakaluki

description: KARUMBE PAKALUKI ARRIAGA- VARELA,
TOMASZEWSKA & SZAWARYN SP. NOV.
(FIGS 6E, F, 7A–E, G, J, K, M, 8D–F, 11A–F)
Zoobank registration: urn: lsid: zoobank. org:act: 349822CB-0F6B-4737-A717-D6CD788AD9CC
Type material: Holotype, male, VENEZUELA: VEN: Miranda: 400 m, 35 km N Altagracia, Guatopo NP, Agua Blanca, 31.V-7.VI.87 -2, S&J Peck, ravine FITs (CMN). Paratypes: same data as holotype (one male and 2 ex, CMN; one female and 1 ex, MIZ).
Diagnosis: Karumbe pakaluki is most similar to K. geiseri but can be distinguished from it by having the narrower prosternal process being about 0.67 as wide as procoxal diameter (Fig. 11C) (0.9 in K. geiseri); pronotum with posterolateral indentation shorter and more rectangular (Fig. 11B) (longer and more oblique in K. geiseri) and by the shape of the aedeagus (Fig. 10E). From K. brethesi, the third species of the genus, K. pakaluki can be easily distinguished by having dorsal surface covered with setiferous punctures and additional foveolate depressions without setae (Fig.11D) (in K.brethesi peculiar punctations as in Fig. 9E), the central area of the metaventrite covered only with simple setiferous punctures (Fig. 11F), the pronotal disc much less concave along the internal lateral carina (Fig. 11B) and the terminal labial palpomere short and apically rounded, 1.2 longer than wide (Fig. 7D) (in K. brethesi: elongate and acuminate, 2.2 as long as wide as in Fig. 9B).
Description: Body: length 0.91–0.95 mm, 1.30 times as long as wide, 2.0 times as long as high, short oval and moderately convex, dark brown with yellowish legs, antennae and palpi (Fig. 6E, F).
Antenna nearly 0.35 of length of body (Figs 7A, 11A); antennomeres 1–5 longer than wide; antennomeres 6, 7, 9 subquadrate and antennomere 8 transverse. Apical labial palpomere short and rounded, 1.2 times as long as wide (Fig. 7D).
Pronotum 2.1 times as wide as long, 1.7 times wider at widest part than on front angles (Fig. 11B). Anterior crenulate margin comparatively wide. Area between lateral edge and internal lateral carina weakly concave, wide and continuously weakly narrowing posteriorly; pronotal disc not concave along internal lateral carina. Basal pronotal bordering line shallowly and irregularly crenulate. Posterolateral indentations comparatively shallow, rectangular. Prosternal process wide (Fig. 11C), with apex about 0.67 of width of procoxal cavity, narrowest near half-length, weakly widened apically, with lateral carinae raised, reaching almost anterior quarter of prosternum, central part between carinae slightly depressed.
Elytra 0.70– 0.75 mm long, about as long a wide, 3.1 times as long and 1.4 times as wide as pronotum; lateral margins visible from above (Fig. 6E). Elytral dorsal surface covered with simple setiferous punctures and additional foveolate depressions without setae (Fig. 11D). Metaventrite with fine setiferous punctures at centre (Fig. 11F). Mesoventral process about 1.3 times as wide as mesocoxal diameter. Wings well developed.
Legs. Meso- and metatrochanters flattened, roundly produced posteriorly.
Abdomen. Ventrite 1 with rounded and laterally complete postcoxal lines (Fig. 11F). Ventrite 5 in male triangularly produced posteriorly at middle, in female straight. Male genital segment as in Fig. 8D.
Male genitalia (Fig. 8E). Aedeagus with penis short and stout, narrow at base, widening towards curved, ramificate apex. Tegmen throne-shaped, long; tegminal strut short, reduced.
Female genitalia. Bursa copulatrix large, with apical outlet of sperm duct. Spermatheca (Fig. 8F) submembranous, moderately large, elongatesubcylindrical, oblong; sperm duct long, about as long as spermatheca; accessory gland small, membranous, of irregular shape.
Etymology: This species is dedicated to the late James Pakaluk, who had keen interest in small brown beetles.
Distribution: Venezuela (Fig. 20A).
description: Published as part of Arriaga-Varela, Emmanuel, Tomaszewska, Wioletta, Szawaryn, Karol, Robertson, James, Seidel, Matthias, Ślipiński, Adam & Fikáček, Martin, 2023, The resurrection of Cerasommatidiidae, an enigmatic group of coccinelloid beetles (Coleoptera: Coccinelloidea) based on molecular and morphological evidence, pp. 1078-1115 in Zoological Journal of the Linnean Society 197 (4) on pages 1100-1101, DOI: 10.1093/zoolinnean/zlac082, http://zenodo.org/record/7814127