Karumbe pakaluki, Arriaga-Varela & Tomaszewska & Szawaryn & Robertson & Seidel & Ślipiński & Fikáček, 2023

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, Zoological Journal of the Linnean Society 197 (4), pp. 1078-1115 : 1100-1101

publication ID	https://doi.org/ 10.1093/zoolinnean/zlac082
publication LSID	lsid:zoobank.org:pub:99842C3A-879F-4552-96B7-204D79CF3EDF
DOI	https://doi.org/10.5281/zenodo.7814193
persistent identifier	https://treatment.plazi.org/id/03C2CE00-FFEF-FF8C-3D94-0F63FB094054
treatment provided by	Plazi
scientific name	Karumbe pakaluki
status

Treatment

KARUMBE PAKALUKI ARRIAGA- VARELA,

TOMASZEWSKA & SZAWARYN SP. NOV.

( FIGS 6E, F View Figure 6 , 7A–E, G, J, K, M View Figure 7 , 8D–F View Figure 8 , 11A–F View Figure 11 )

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 View Figure 11 ) (0.9 in K. geiseri ); pronotum with posterolateral indentation shorter and more rectangular ( Fig. 11B View Figure 11 ) (longer and more oblique in K. geiseri ) and by the shape of the aedeagus ( Fig. 10E View Figure 10 ). 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 View Figure 11 ) (in K.brethesi peculiar punctations as in Fig. 9E View Figure 9 ), the central area of the metaventrite covered only with simple setiferous punctures ( Fig. 11F View Figure 11 ), the pronotal disc much less concave along the internal lateral carina ( Fig. 11B View Figure 11 ) and the terminal labial palpomere short and apically rounded, 1.2 longer than wide ( Fig. 7D View Figure 7 ) (in K. brethesi : elongate and acuminate, 2.2 as long as wide as in Fig. 9B View Figure 9 ).

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 View Figure 6 ).

Antenna nearly 0.35 of length of body ( Figs 7A View Figure 7 , 11A View Figure 11 ); 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 View Figure 7 ).

Pronotum 2.1 times as wide as long, 1.7 times wider at widest part than on front angles ( Fig. 11B View Figure 11 ). 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 View Figure 11 ), 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 View Figure 6 ). Elytral dorsal surface covered with simple setiferous punctures and additional foveolate depressions without setae ( Fig. 11D View Figure 11 ). Metaventrite with fine setiferous punctures at centre ( Fig. 11F View Figure 11 ). 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 View Figure 11 ). Ventrite 5 in male triangularly produced posteriorly at middle, in female straight. Male genital segment as in Fig. 8D View Figure 8 .

Male genitalia ( Fig. 8E View Figure 8 ). 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 View Figure 8 ) 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 View Figure 20 ).