Blaberops korinae, Trýzna, Miloš & Baňař, Petr, 2014

Trýzna, Miloš & Baňař, Petr, 2014, A new species of the genus Blaberops (Coleoptera: Anthribidae) from east Madagascar, with a key to species, Zootaxa 3826 (2), pp. 386-392 : 387-389

Blaberops korinae sp. nov.

( Figs. 1–2 , 5–15 )

Type locality. East Madagascar, Tamatave province, Andasibe (Pèrinet).

Type material. Holotype (male) labelled: ‘ E MADAGASCAR, 2001 / TAMATAVE distr. / ANDASIBE (Perinet) / D. Hauck leg., 17.-30.XII. ( BSNPC). Allotype (female), Paratype (female) labelled: same locality as holotype, allotype J. Horák leg., paratype D. Hauck leg. ( MTDC). Red label [p] HOLOTYPE / ALLOTYPE / PARATYPE / Blaberops korinae sp. nov. / M. Trýzna & P. Baňař det., 2014.

Description. Male holotype, (female allotype). Measurements (in mm): Total body length—3.38 (4.37). Head: total length—0.60 (0.67); length of rostrum—0.29 (0.37); maximum width of rostrum—0.60 (0.76); length of eye—0.31 (0.31); maximum width across eyes—0.78 (1.00); minimum distance between eyes—0.31 (0.44). Antenna: length of segments: II—0.16 (0.14), III—0.27 (0.22), IV—0.26 (0.22), V—0.23 (0.22), VI—0.22 (0.18), VII—0.23 (0.20), VIII—0.26 (0.16), IX—0.27 (0.29), X—0.18 (0.20), XI—0.20 (0.24). Pronotum: maximum length—1.02 (1.27); width at carina—1.20 (1.47); minimum width—0.69 (0.89). Elytra: maximum length—1.76 (2.42); maximum width—1.27 (1.69).

Colouration of the cuticle generally brown, pro-, meso-, metasternum and ventrites dark brown, covered with dense whitish hairs. Legs brown, covered with sparse whitish hairs, distal half of tibiae and all tarsomeres in male and fifth tarsomere in female dark brown to black. Antennae black with whitish hairs on antennomere VIII in male; antennomere I-VIII brown, IX-XI black in female. Surface of head covered with whitish hairs, pronotum and elytra with distinct rows of whitish stripes.

Vestiture on head with whitish setae, pronotum with setae joined into one central and on each side three lateral distinct whitish stripes, last two lateral stripes joined anteriorly. Each elytron with five longitudinal stripes of whitish setae, space between them covered with yellowish and brownish setae. Scales of cutellum bright white. Vestiture of antennae short, sparse, appressed; all legs covered with dense whitish setae. Prosternum and venter of abdomen with very dense whitish pubescence.

Structure. Head relatively short, rostrum flat, simple, without longitudinal carina, only with weak depression in the middle, ratio of rostrum length to maximum width 0.48 in both sexes. Scrobes not visible dorsally, scape only slightly hidden in scrobe in dorsal view. Eyes emarginate anteriorly, ocular index 1.32 in male, 1.58 in female. Ratio of maximum width across eyes to maximum width of rostrum 1.30 in male, 1.32 in female. Antennae ( Figs. 1–2 ) reaching to mid-point of elytra in male and to posterior margin of pronotum in female. Funicle thin, club more robust in female, narrower in male.

Pronotum slightly longitudinal, ratio of its length to width at carina 0.85 in both sexes, gradually narrowed anteriorly, widest at dorsal transverse carina. Dorsal transverse and very short lateral carina of pronotum formed in wide arch. Dorsal transverse carina distinctly bisinuate ( Figs. 1–2 ), lateral carina short, reaching only basal fifth of the pronotum length, lateral margins of pronotum regularly rounded from dorsal view, convergent anteriorly.

Elytra longitudinally oval ( Figs. 1–2 ), proximal three quarters parallel, narrowed posteriorly from distal quarter of their length. Ratio of the maximum length to maximum width of elytra 1.38 in male, 1.43 in female.

Genitalia. Male. Segment 8 with robust tergite and paired, well differentiated sternal lobes (= sternite 8) ( Fig. 9 ). Minute apodeme of sternite 8 present. Sternite 9 formed as a long apodeme with two short basal branches. The body of aedeagus strongly sclerotized, internal sac with fine denticulation, ejaculatory duct short, apodemes long ( Fig. 5 ). Tegmen ( Figs. 7–8 ) strongly sclerotized.

Female. Sternite 8 strongly sclerotized, proximal apodeme long ( Fig. 13 ), tergite 8 weakly sclerotized except for narrow median plate and paired sublateral plates, lateral parts of tergite 8 (joining sternite 8) with numerous long setae ( Fig. 14 ). Hemisternites ( Fig. 10 ) with distal body cylindrical, lateral apodemes (= lateral rods) subparallel, toothed plate well developed with short stylus ( Fig. 11 ). Spermatheca as in Fig. 12 ; bursa copulatrix and spermathecal gland damaged, not studied in detail.

Sexual dimorphism. Male antennae moderately long, reaching approximately to mid-point of elytra (antennae extend slightly beyond posterior margin of pronotum in female), antennomere VIII with white setae in male, conspicuously contrasting with remaining antennomeres (antennomere VIII in female of same colour as antennomeres I-VII), antennal club longer and narrower in male ( Fig. 1 ) than in female ( Fig. 2 ).

Etymology. Patronym, dedicated to our friend Mrs. Korina Kudrnová from Děčín ( Czech Republic).

Distribution. East Madagascar: Andasibe (Pèrinet) surroundings ( Fig. 15).

Differential diagnosis. Blaberops korinae sp. nov. can be easily distinguished from other species of the genus by its unique, conspicuous colour pattern (also see Key).

Figures

FIGURES 1 – 4. 1 – 2, Blaberops korinae sp. nov., 1, male holotype (3.38 mm); 2, female allotype (4.37 mm); 3 – 4, Blaberops exilloides Frieser, 2000; 3, male (4.72 mm); 4, female (4.87 mm). All specimens collected in Andasibe village environs.

FIGURES 5 – 9. Blaberops korinae sp. nov., male holotype; 5, aedeagus, lateroventral view; 6, body of aedeagus, ventral view; 7, tegmen, lateral view; 8, tegmen, dorsal view; 9, segment 8 and sternite 9. Scale bars in mm.

FIGURES 10 – 14. Blaberops korinae sp. nov., female allotype; 10, hemisternites, ventral view; 11, toothed plate with stylus, lateroventral view; 12, spermatheca; 13, sternite 8; 14, tergite 8. Scale bars in mm.