Tophoderes lidmilae Trýzna & Baňař, 2015

Trýzna, Miloš & Baňař, Petr, 2015, A new species of Tophoderes Dejean from northern Madagascar with a checklist of the species (Coleoptera: Anthribidae), Zootaxa 3905 (2), pp. 264-272 : 265-270

Tophoderes lidmilae Trýzna & Baňař sp. nov.

( Figs. 5–15 )

Type locality. North Madagascar, Antsiranana province, Montagne d´Ambre Nat. Park.

Type material. Holotype (male): N MADAGASCAR, ANTSIRANANA PROVINCE: ‘N Madagascar, Ambohitra env. / Montagne d´Ambre N.P. / S 12°28´34,7´´; E 049°13´07,5´´ / J. Vybíral leg., 1.– 3.1.2007 ’ ( BSNPC). Allotype (female): ‘ Madagascar N / Antsiranana prov. / Ambohitra env. / 20.–26. XII. 2002 / Ivo Jeniš leg.’ ( MTDC). Paratype (female): ‘N Madagascar, 28.x.2010 / Mt. d´Ambre Nat. Park, 1048 m a.s.l., / S 12°32´04.1´´; E 049°10´34.0´´ / M. Trýzna leg.’ ( MTDC). Red label [p] HOLOTYPE / ALLOTYPE / PARATYPE / Tophoderes / lidmilae sp. nov. / M. Trýzna & P. Baňař det., 2014.

Description. Male holotype, (female paratype). Measurements (in mm): Total body length—26.20 (21.20). Head: total length—5.10 (4.70); length of rostrum—3.50 (2.10); maximum width of rostrum—3.40 (2.80); length of eye—1.60 (1.20); maximum width across eyes—3.85 (3.10); minimum distance between eyes—1.50 (1.50). Antenna: length of segments: II 1.00 (0.60), III—1.60 (0.80), IV—1.50 (0.70), V—1.25 (0.55), VI—1.10 (0.50), VII—1.10 (0.50), VIII—1.00 (0.55), IX—1.00 (0.75), X—0.80 (0.55), XI—0.75 (0.60). Pronotum: maximum length—6.10 (4.20); width at carina—7.70 (5.70); maximum width—8.40 (6.00); minimum width—4.00 (3.30). Elytra: maximum length—15.00 (12.30); maximum width—10.30 (8.70).

Colouration of cuticle of entire body black, only distal part of tarsomere V dark brown in both sexes.

Vestiture. Head predominantly with black appressed setae. On dorsal part of head two distinct yellowish longitudinal stripes located from vertex along inner margins of eyes to dorsal part of rostrum, but not reaching half of its length. These stripes composed of light yellow appressed setae, weakly mixed with brown setae. Pronotum with five more or less distinct longitudinal spots of light yellow setae, two on distal margin and three on proximal third of pronotum, rest of pronotum covered with black appressed setae. Elytron with one distinct transverse narrow band on distal third and one short indistinct oblique pinstripe in humerus which blends in with adjacent similarly coloured spots. Rest of elytra speckled, covered by mixed yellow and brown appressed setae (more noticeable in male than in female). Scutellum with yellowish setae. Antennae with black pubescence, distal part of antennomeres III–VIII in male and VI–VIII in female covered by longer conspicuous yellowish appressed setae, remaining antennomeres and primarily antennomeres IX–XI (club) only with very short, soft, dense setae in both sexes. Legs covered with dense, fine black setae, all femora with indistinct light distal part, with yellowish stripe on the distal quarter. Tibiae unicolorous, covered with dense distinct yellow setae appressed in proximal part and subdecumbent in distal part, apical part of tibiae with only black setae in both sexes. All tarsomeres with black setae; tarsomere I with sparse yellowish to brown indistinct setae in male and tarsomere V with distinct yellow distinct setae in both sexes. Lateral parts of venter of thorax and abdominal sternites with dense black pubescence mixed with yellow and brown setae. Distal part of prosternum with one pair of rusty (male) or yellow (female) spots.

Structure. Head relatively long, rostrum extended apically ( Fig. 8 ), not depressed in middle, with one fine longitudinal carina reaching between eyes in both sexes. Ratio of rostrum length to maximum width 1.03 in male, 0.75 in female. Eyes spherical, not emarginate, dorsal ocular index 1.28 in male, 1.87 in female. Ratio of maximum width across eyes to maximum width of rostrum 1.13 in male, 1.11 in female. Antennae reaching to posterior margin of pronotum in male, females antennae shorter. Funicle thick, club moderately robust, antennomere IX longer than wide in male. Pronotum slightly transverse ( Fig. 7 ), ratio of its length to width at carina 0.79 in male, 0.74 in female, gradually extended anteriorly to half of its length, here widest, then narrowed to distal part. Disk of pronotum with three distinct humps and two considerable horns protruded obliquely forward from line of pronotum in both sexes. Dorsal transverse carina bisinuate with indistinct arch in middle. Lateral carina of pronotum welldeveloped, sharp, reaching beyond basal half of pronotum in lateral view, meeting with dorsal transverse carina at right-angle. Elytra broadly suboval ( Figs. 5–6 ), ratio of maximum length to maximum width of elytra 1.46 in male, 1.41 in female. Abdomen as long as wide. Male genitalia. Aedeagus robust ( Fig. 9 ), internal sac, consisting of ventral lobe only, very wide and long, reaching the apices of apodemes. Tectum very wide, its sclerotized plate broadly oval, almost egg-shaped ( Figs. 10 , 12 ). Apodemal bridge irregularly rounded, widest in middle ( Fig. 12 ). Tegmen robust, its apex subrectangular ( Fig. 14 ), preapical flange simple.

Sexual dimorphism. Male antennae are more robust and moderately longer, reaching approximately to posterior margin of pronotum, abdominal ventrites are more slightly flattened.

Etymology. Patronym, dedicated to the memory of the mother of the first author, Mgr. Lidmila Trýznová (†).

Distribution. Three specimens were collected in northern Madagascar, Antsiranana province, Montagne d´Ambre National Park, which is covered by a volcanic massif composed mainly of basaltic rocks. The paratype was collected by the authors in tropical moist forest near a crater lake at 1048 meters elevation.

Diferential diagnosis. Tophoderes lidmilae sp. nov. is very similar to T. frenatus ( Klug, 1833) from which it can be distinguished by characters given in the key below:

(1) Pair of longitudinal stripes on head extended from vertex to only half of length of rostrum; pronotum without pair of wellmarked longitudinal stripes, with only five small longitudinal spots; humerus with only indistinct smudgy oblique stripes; surface of elytra mottled, covered with mix of yellow and brown setae; sclerotized plate of tectum broad, almost egg-shaped ( Fig. 12 ), apodemal bridge irregularly rounded ( Fig. 12 ), preapical flange of tectum simple ( Fig. 14 )................................................................................................. T. lidmilae Trýzna & Baňař sp. nov.

(2) Pair of longitudinal stripes on head extended from vertex to distinctly beyond half of length of rostrum; pronotum with pair of well-marked longitudinal stripes subsequent to head and short humeral stripes; humerus with distinct oblique stripes; surface of elytra covered with brightly bordered spots with yellow setae; sclerotized plate of tectum narrow, longitudinal ( Fig. 11 ), apodemal bridge regularly rounded ( Fig. 11 ), preapical flange of tectum broadly flattened ( Fig. 13 )... T. frenatus ( Klug, 1833)

Figures

FIGURES 5 – 8. Tophoderes lidmilae sp. nov. Trýzna & Baňař; 5, male holotype dorsal habitus; 6, female allotype dorsal habitus; 7, pronotum, male; 8, head dorsal, male. Scale bars in mm.

FIGURES 9 – 10. Tophoderes lidmilae sp. nov. Trýzna & Baňař, holotype male; 9, aedeagus, lateral view; 10, tectum, dorsal view. Scale bars in mm.

FIGURES 11 – 14. 11, 13; Tophoderes frenatus (Klug, 1833) male; 12, 14, Tophoderes lidmilae sp. nov. Trýzna & Baňař, holotype male; 11, 12, tectum, dorsal view; 13, 14, apex of tegmen, dorsal view. Scale bars in mm.