Chileanthicus cursor, Kejval, 2009

Kejval, Zbyněk, 2009, Taxonomic revision of the genus Chileanthicus Werner (Coleoptera: Anthicidae) 2180, Zootaxa 2180 (1), pp. 1-82 : 26-28

publication ID 10.11646/zootaxa.2180.1.1


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scientific name

Chileanthicus cursor

sp. nov.

Chileanthicus cursor sp. nov.

( Figs 54–57 View FIGURES 54–62 , 217, 218 View FIGURES 209–219 )

Type locality. E-Madagascar, Toamasina Prov., ca 150 km E of Antananarivo, Andasibe, 18°56'S 48°26'E, Analamazaotra Reserve GoogleMaps .

Description (male, holotype). Head and pronotum black; elytra brown black, somewhat paler in apical third, with vaque indication of two, paired, rufous to rufous brown, transverse bands/spots, the posterior one slightly more distinct; legs largely brown black, tarsi rufous; antennae and palpi dark brown.

Head 1.2 times as long as wide, widely rounded posteriorly; tempora subparallel, posterior temporal angles rounded but distinct. Eyes small to medium-sized, moderately convex. Dorsal surface moderately glossy, coarsely and densely punctured ( Fig. 54 View FIGURES 54–62 ); punctation simple, rather evenly developed, including median line. Setation mostly short, subdecumbent, with moderately longer sparsely scattered, erect setae. Eyes small to medium, moderately convex. Antennae rather strong, moderately enlarged in terminal third; proximal antennomere III twice as long as wide, distinctly longer than IV; antennomere X 1.2 times, XI twice as long as wide.

Pronotum robust, as long as wide, moderately wider than head including eyes; widely rounded anteriorly; pronotal disc moderately convex, its lateral margins forming rounded edge, lateral outlines nearly straightly narrowing posteriad in dorsal view. Surface largely moderately glossy, densely, rather coarsely punctured, lateral sides partly impunctate and thus more glossy; dorsal punctation similar to that on head, slightly sparser; setation as on head.

Elytra 1.6 times as long as wide, narrowed and conjointly rounded apically. Surface glossy, distinctly punctured ( Fig. 54 View FIGURES 54–62 ); basal punctation distinctly sparser than that on head. Setation generally longer than on head; subdecumbent setae uniform, pale to brownish and evenly directing posteriad; erect setae numerous and distinct.

Metafemora conspicuously swollen/clavate, unidentate, subapical process prominent, facing inner side of tibia ( Fig. 55 View FIGURES 54–62 ); metatibiae distinctly arcuate, moderately narrowed in apical half, with apical margin produced on inner side. Setation short and fine, mostly appressed; metatibiae with distinct fringe of short, stiff setae apically, also bordering longitudinal impression on outer side subapically.

Abdominal sternum VII and tergum VII simple, evenly rounded posteriorly. Sternite VIII ( Fig. 56 View FIGURES 54–62 ); paired prongs simple, arcuately curved ventrad, short, finely setose in apical half. Tergite VIII simply, widely rounded posteriorly ( Fig. 217 View FIGURES 209–219 ); segment IX (spiculum) as in Fig. 218 View FIGURES 209–219 .

Aedeagus ( Fig. 57 View FIGURES 54–62 ); apical portion of tegmen short, about 0.5 times as long as basal-piece, simple, moderately bent in lateral view, nearly evenly narrowing towards apex (see Remarks); median lobe of aedeagus terminating in well-sclerotized rod-like shaped process, with moderately notched apex in ventral view.

Female. Externally identical to male.

Body length. 4.0– 4.4 mm (holotype 4.4 mm).

Type material. Holotype: ♂, MADAGASCAR Est, Andasibe (= Perinet ) (Toamasina prov.), Réserve Spéciale de Anamalazaotra , leaf litter sifting, 947 m a.s.l., 7.I.2006, leg. A. Ballerio, R. K. Zafinasolo & J. E. Randrianirina ( NMPC) . Paratype: ♀, same data as holotype ( ZKDC) .

Etymology. From Latin cursor (sprinter, runner); named in reference to robust hind legs.

Differential diagnosis. C. cursor sp. nov. is closely realated to C. dentatus as suggested by the similarly shaped robust body with strongly swollen metafemora, as well as by the similarity of the male characters. It can be easily distinguished from the latter species by the sparser and coarser punctation of the body surface (especially on the elytra; cf. Figs 54, 58 View FIGURES 54–62 ), with partly impunctate and glossy lateral sides of the pronotum, by the generally longer, more raised setation, with distinct erect setae, and by the numerous details of the male characters, e.g. by uniformly fine setation of sternite VIII (lacking peg-like setae), and by structure of the median lobe of the aedeagus (cf. Figs 57, 62 View FIGURES 54–62 ).

Distribution. Madagascar (Toamasina).

Remarks. The entire apex of the tegmen of the aedeagus ( Fig. 57 View FIGURES 54–62 ) in the holotype specimen appears to be abrupt.


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