Tillicera wenii G.Y. Yang & X.K. Yang

Yang, Ganyan, Montreuil, Olivier & Yang, Xingke, 2011, New species, new records and new morphological characters of the genus Tillicera Spinola from China (Coleoptera, Cleridae, Clerinae), ZooKeys 122, pp. 19-38 : 24-25

Tillicera wenii G.Y. Yang & X.K. Yang sp. n. Figs 221-283140

Holotype.

male. Taiwan, Taoyuen country, Mt. Lalashan, 1994.V.10, leg. CHOU Wen-I. Specimen adhibitted on rectangular board; locality label (original in Chinese); label with information on dissecting number (108 #), dissector and date; holotype label; plastic vial with abdomen and aedeagus (NMNS). Paratype. 1 male, Taiwan, Hualien County, Bilyu Divine Tree, 1995.VI.19, leg. CHOU Wen-I (IZAS).

Diagnosis.

Distinguishable from superficially similar specimens of Tillicera auratofasciata by pattern-forming setae on elytra paler, metasternum and metaepisternum earth-yellow, pubescence on metaepisternum and metasternum white and distinctly thinner than light yellow decumbent setae on elytra, meta-P1 evident and meta-P2 bilobed (Figs 39-40), pit-like sensilla of male terminal antennomere oblique, smaller and deeper (indistinct in magnification 100x before treated with KOH solution) (Figs 29, 31), paramere pointed; and distinguishable from Tillicera sensibilis by pattern-forming setae on elytra paler, meta-P1 evident and meta-P2 bilobed (Figs 39-40), pit-like sensilla of male terminal antennomere oblique, smaller and deeper (indistinct in magnification 100x before treated with KOH solution) (Figs 30-31, 33), paramere pointed, dorsal and ventral sinuses both lanceolate, and dorsal margin of phallus with large denticles extending from basal half towards apex.

Description.

Size: male: length 9.1-9.2 mm; width 2.5-2.6 mm; female: unknown.

Head: Black; clypeus, labrum, labium, maxillae yellow-brown, apex of palpi darker; antennomeres 1-4 paler; cranium with slightly dense, fine punctation, each puncture bearing a yellow or dark seta; terminal antennomere: length to width ratio> 1.5, males with an oblique and deep pit-like sensillum at basal third, diameter of opening 0.03 mm (indistinct in magnification 100x before treated with KOH solution) (Fig. 31).

Prothorax: Pronotum bicolored, anterior to subapical depression black, posteriorly orange, with some faint dark zones laterally; with dense punctation and anteriorly directed black and yellow setae; prosternum orange.

Mesothorax: Mesoscutelllum orange; mesosternum earth-yellow.

Metathorax: Metasternum and metaepisternum earth-yellow, pubescence on metaepisternum and metasternum white, distinctly far thinner than light yellow decumbent setae on elytra.

Elytra: Length to width ratio: male average about 2.30, female unknown; integument tricolored, basal two-fifths orange, posterior three-fifths black; with a pair of light yellow maculae before middle, each spanning from lateral margin to two-thirds way towards suture, matted with greyish yellow, decumbent setae; behind two maculae, with a central backward opened lunate band formed of yellow decumbent setae, more or less joining with anterior maculae; apical third with another pair of light yellow maculae, spanning from lateral margin to, or nearly to, suture, matted with greyish yellow, decumbent setae, setal patterns broadly meeting at suture; basal two-fifths regularly and comparatively shallowly punctate in rows, diameter of punctures a little smaller than, or as wide as, intervals; inner four rows of elytral punctation fading away behind lunate band; basal two-fifths with erect, black setae (extreme base with some light yellow setae), black part with posteriorly directed, black, decumbent pubescence (apical third mixed with some light yellow setae as well).

Legs: Black, paler at base, paler part of profemora not longer than one tenth, of mesofemora not longer than one fourth, of metafemora not longer than half; with moderately dense, grayish yellow, erect setae; all tibiae with distinct longitudinal carinae; P1-4 of all legs present, P1 evident but unlobed, P2 feebly lobed apically, P3-4 conspicuously lobed apically (Fig. 40).

Abdomen: Black.

Male terminalia: Ratio of length of paramere to whole tegmen 0.37: 1, paramere pointed, dorsal and ventral sinuses both lanceolate, former broader and deeper (Figs 21-22); phallic plate with large denticles along dorsal margin and fine granular structures on posterior sclerotized area; spicular fork (denticles extending from anterior half to posterior sclerotized area; number of denticles may vary between left and right phallic plate and between individuals but whole length of denticles is consistent) (Figs 23-24, 28); spicular fork (Fig. 25); tergum VIII (Fig. 26), sternum VIII (Fig. 27).

Female reproductive organs: Unknown.

Distribution.

China: Taiwan.

Etymology.

Dedicated to CHOU Wen-I, a specialist on Taiwan Cerambycidae and the collector of this species.