Chileaphricus, Douglas, Hume B., 2017

Douglas, Hume B., 2017, World reclassification of the Cardiophorinae (Coleoptera, Elateridae), based on phylogenetic analyses of morphological characters, ZooKeys 655, pp. 1-130 : 26-28

Chileaphricus gen. n. Figs 38-41

Type species.

Chileaphricus chilensis (Fleutiaux, 1940)

Diagnosis.

Head. Labrum convex in lateral view. Prothorax. Pronotum with lateral carina absent or restricted to basal ¼ or absent; procoxal cavities open. Pterothorax. Scutellum with middle of anterior edge emarginate, posterior apex not bilobed; mesocoxal cavity open to both mesepimeron and mesepisternum (Fig. 39), mesotrochantin not hidden. Legs. Tarsomeres without ventral lobes; tarsal claws with one apex per side. Aedeagus. Aedeagus with paramere apices not forked (Fig. 41).

Description.

Length 9.5 mm. Integument brown. Head: Antennal sensory elements beginning on antennomere 4 (Fig. 40); mandibles with apices bidentate. Labrum evenly convex; area between antennal fossa and compound eye broadly carinate. Frons with supra-antennal carina forked near juncture with compound eye; frons with supra-orbital groove present (Fig. 2). Prothorax: Pronotum with punctures circular; sublateral carinae and incisions absent; posterior edge of pronotum with 3 apices mesally; hind angles with a single carina reaching to near midlength, it is unknown whether this is the hind angle carina or the lateral carina. Hind angles not truncate dorsally (Fig. 3); hypomeral hind edge sinuate immediately meso-ventrad of hind angles; procoxal cavities open. Prosternum with sides concave in ventral view; anterior prosternal lobe short, not covering labium; prosternal process curved dorsad more than 30°, ventral surface not carinate laterally. Mesothorax: Scutellum with anterior edge emarginate. Mesosternum with anterior edges concave lateral to mesosternal cavity in lateral view; mesosternal cavity with lateral edges sinuate anterad of mesocoxae. Mesepisternum and mesepimeron reaching mesocoxal cavity; mesotrochantin exposed in most. Elytra with intervals 4-6 costate apically (Fig. 38). Hind wings with venation well-developed, not notched in anal area. Legs: Tarsi without ventral lobes or pads; tarsal claws each with 1 apex; metacoxal plate covers 1/3 of metatrochanter with legs withdrawn. Male genitalia: abdominal segment 9 with tergite and sternites articulated at sides; parameres without apicolateral expansions (Fig. 41), apices not forked, sides with 4 setae; aedeagus with basal struts approximately 0.6 times median lobe length, median lobe simple. Females: not known.

Etymology.

Masculine. Named for a genus of Cardiophorinae known only from Chile.

Discussion.

Please see text of discussion above for argumentation for new genus. The exposed mesotrochantin is unique among Cardiophorinae. Known from: Chile, 1 sp. The type species is transferred from Aphricus to Chileaphricus as: Chileaphricus chilensis (Fleutiaux, 1940)