Apatenia quadristigma Frieser, 1981

Trýzna, Miloš & Rakotonirina, Jean Claude, 2024, A new species of Apatenia Pascoe (Coleoptera: Anthribidae) from central Madagascar, with a key to species, additions to the distribution of rare species of the genus, and general notes about threats to anthribid diversity, Zootaxa 5537 (3), pp. 325-347 : 339

Apatenia quadristigma Frieser, 1981

( Figs 23 , 32 )

Apatenia quadristigma Frieser, 1981: 253 , 251: figs 12–13 (12–male antenna, 13–female antenna). Trýzna & Baňař 2013: 507 (redescription), 508: figs 5–6 (5–female allotype, dorsal view, 6–head, dorsal view), 509: figs 7, 9, 12 (7–head, 9–right antenna, 12–dorsal pronotal carina, all drawings)

Type material. Paratype (female): East MADAGASCAR, TOAMASINA PROvINCE: ‘COLL. MUS. TERVUREN / Madagascar: Mananara / X. 1963 / J. Vadon [p] // Allotype [p, red label] // Apatenia / quadristigma sp. n. / Allotypus [h] / det. R. Frieser [p] 1980 [h]’ ( ZSMC).

Other material. 4 females. 1 female: N Madagascar, Ankarana N.P., circuit Benavony , S 12°57´30.8´´, E 49°07´10.5´´, 128 m, 21.-26.i.2016, M. Trýzna leg. ( Fig. 23 , MTDC) ; 1 female: Madagascar, Ankarana, C. J. Vadon ! // Museum Paris, Madagascar, Coll. J. Vadon [typical blue acquisition label of MNHN] ( MNHN) ; 1 female: Madagascar, Fenerive, E. Perrot ( MNHN) ; 1 female: Madagascar, Fénerive , Perrot Fréres , 1 er Trim. 1896 // Museum Paris, 1952, Coll. R. Oberthür [typical blue acquisition label of MNHN] ( MNHN) .

Diagnosis. Pronotum monochromatic blue-grey. Dorsal transverse carina of pronotum sub-basal, i.e. approached to posterior margin of pronotum. Elytra with basal elevation, blue-grey, disc of elytra with horseshoe-shaped black stripe, which is open in basal part of elytra. In basal half of elytra inside this horseshoe-shaped stripe, two pairs of brilliant white stripes are located, one transverse pair anteriorly of sub-basal tubercles in basal area, and the second oblique pair posteriorly of tubercles in sub-basal area. Size of the body 4.8–6.0 mm.

Distribution and biology. This appears to be a rare species, which was described based on two specimens: holotype (male) from Fampanambo, and allotype (female) from Mananara, both in north Madagascar. We know of only four other specimens: two from Fénerive (= Fenoarivo) located on the east coast, and two from Ankarana National Park on north part of Madagascar. The specific habitat requirement of species remains unknown.

Figures

FIGURE 32. Distribution of selected rare Apatenia species. Triangle–type locality, circle–other distribution.

FIGURES 23–26. Malagasy Apatenia species, habitus in dorsal view. 23, A. quadristigma Frieser, 1981 (female); 24, A. oculifera Frieser 2000 (male); 25, A. stysi Trýzna & Baňař, 2013 (paratype, female); 26, A. sulcicollis Frieser, 2000 (male).