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

Chileanthicus cursor sp. nov.

( Figs 54–57 , 217, 218 )

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

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 ); 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 ); 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 ); 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 ); paired prongs simple, arcuately curved ventrad, short, finely setose in apical half. Tergite VIII simply, widely rounded posteriorly ( Fig. 217 ); segment IX (spiculum) as in Fig. 218 .

Aedeagus ( Fig. 57 ); 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 ), 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 ).

Distribution. Madagascar (Toamasina).

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

Figures

FIGURES 54–62: Chileanthicus cursor sp. nov., male, holotype: 54, punctation of head (top) and elytra (bottom); 55, hind leg; 56, sternite VIII, dorsal view; 57, aedeagus in ventral (left) and its apical portion in lateral (right) view; C. dentatus (Dajoz), male, 48 km ENE Morondava (FMNH): 58, punctation of head (top) and elytra (bottom); 59, apical portion of metafemur with tibia and tarsus; 60, sternite VIII, dorsal view; 61, the same, lateral view; 62– aedeagus in ventral (left) and its apical portion in lateral (right) view. Scale (0.5 mm): A –57, 62; B, 54, 58; C, 55; D, 59; (0.2 mm): E, 56, 60, 61.

FIGURES 209–219: Chileanthicus uhmanni sp. nov., male, holotype: 209, body form and punctation of head (top) and elytra (bottom); 210, antenna; 211, metafemur; C. volselifer sp. nov., male, holotype: 212, body form and punctation of head (top) and elytra (bottom); 213, metafemur; 214, apex of metatibia; 215, sternite VIII; 216, apex of aedeagus in ventral (right) and lateral (left) view; C. cursor sp. nov. (male, holotype): 217, tergite VIII; 218, segment IX (spiculum); 219, C. quadrimaculatus (King), South Australia (SAMA), male tergite VIII. Scale (1.0 mm): A, 209, 212; (0.5 mm): B, 211, 217, 218, 219; C, 213; D, 210; (0.2 mm): B, 214; E, 215, 216.