Canuschiza Lacroix, 1999

Sehnal, Richard, Král, David & Bezděk, Aleš, 2014, Canuschiza of Socotra Island (Coleoptera: Scarabaeidae: Melolonthinae) Part 1. Canuschiza insularis species group, Acta Entomologica Musei Nationalis Pragae 54, pp. 139-171 : 141-142

publication ID	https://doi.org/10.5281/zenodo.5312012
publication LSID	lsid:zoobank.org:pub:D72D1DC9-87D1-4209-A01F-8185A4D21F88
DOI	https://doi.org/10.5281/zenodo.5449173
persistent identifier	https://treatment.plazi.org/id/03A4923D-7D78-AD27-15D5-FEECF6B84B3F
treatment provided by	Marcus (2021-08-28 02:47:26, last updated by Plazi 2023-11-05 04:34:50)
scientific name	Canuschiza Lacroix, 1999
status

Treatment

Genus Canuschiza Lacroix, 1999

Canuschiza Lacroix, 1999: 89 , Figs 1 View Figs 1 –27 (original description); LACROIX (2002): 404, Figs 1 View Figs 1 –25 (review); BEZDĚK (2006): 199 (catalogue); LACROIX (2010): 207 (catalogue).

Type species. Canuschiza insularis Lacroix, 1999 , by original designation.

Differential diagnosis. Genus Canuschiza differs from other schizonychine genera in combination of the following characters. Body elongate (length 7.5–17.2 mm), almost parallel-sided, weakly to moderately convex. Labrum transverse, deeply bilobed, lobes rounded. Clypeus transverse, anterior angles rounded. Fronto-clypeal suture present, forming continuous shallowly bisinuate line or better visible elevated double fronto-clypeal carina ( Figs 1A,B View Figs 1 ). Occipital carina missing. Eyes small (width of both eyes combined lower than maximum width of frons between eyes) to large (width of both eyes combined larger than maximum width of frons between eyes). Antenna with eight to ten antennomeres; club with three antennomeres. Terminal maxillary palpomere elongate, truncate apically. Pronotum transverse, simply convex, without anteromedian tubercle. Basal border complete, anterior border missing. Posterior angles of pronotum broadly rounded to rectangular, in some species even distinctly produced posteriad. Elytra weakly to moderately convex, parallel-sided, rounded apically, apical angle approximately rectangular. Striae missing, except of feebly visible sutural stria. Macropterous, rarely micropterous. Protibia narrow, tridentate, terminal calcar inserted against medial dent. Claws bifid, with ventrobasal teeth (e.g. Fig. 2B View Figs 2 ). Parameres symmetrical, regularly curved in lateral aspect, rounded apically in dorsal aspect; apex with tuft of long yellowish macrosetae ( Figs 10A–D View Figs 10 , 11A–D View Figs 11 ).

Geographical distribution. Endemic to Socotra Island.

References

BEZDEK A. 2006: Tribe Schizonychini Burmeister, 1855. P. 228. In: LOBL I. & SMETANA A. (eds): Catalogue of Palaearctic Coleoptera. Volume 3. Scarabaeoidea - Scirtoidea - Dascilloidea - Buprestoidea - Byrrhoidea.

LACROIX M. 1999: Melolonthidae de Socotra (Coleoptera, Scarabaeoidea). Revue Francaise d'Entomologie (Nouvelle Serie) 21: 87 - 96.

LACROIX M. 2002: Melolonthinae (Coleoptera: Scarabaeidae) of Socotra island, Yemen. Fauna of Arabia 19: 399 - 414.

LACROIX M. 2010: Melolonthinae afrotropicaux (Scarabaeoidea, Melolonthidae). Genera et catalogue commente. Editions Marc Lacroix, Paris, 277 pp + 192 pls.

Figures

Figs 1A–D. Canuschiza Lacroix, 1999:A–B – head, dorsal view; C–D – metathoracic wing.A – Canuschiza insularis Lacroix, 1999, holotype; B – C. minuta Lacroix, 1999, holotype; C – C. hagher sp. nov., holotype; D – C. skand sp. nov., holotype. Scale bar: 2.0 mm. Figs A, B not to scale.

Figs 2A–H. Canuschiza adah sp. nov., dorsal view: A–D – male, holotype, body length 13.7 mm; E–H – female, paratype No. 7, body length 13.0 mm. A, E – habitus; B, F – protarsal claw; C, G – detail of laterobasal area of pronotum and elytron; D, H – head. Not to scale.

Figs 10A–D.Aedeagus in dorsal (left) and lateral (right) view:A – Canuschiza adah sp. nov., holotype; B – C. croton sp. nov., holotype; C – C. dracaena sp. nov., holotype; D – C. firmihin sp. nov., holotype. Scale bar: 1.0 mm.

Figs 11A–D. Aedeagus in dorsal (left) and lateral (right) view: A – Canuschiza hagher sp. nov., holotype; B – C. insularis Lacroix, 1999, holotype; C – C. jatropha sp. nov., holotype; D – C. skand sp. nov., holotype. Scale bar: 1.0 mm.