Floridelater, 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 : 29-30

Floridelater gen. n. Figs 9, 45-47

Type species.

Coptostethus americanus Horn, 1871.

Diagnosis.

Pterothorax. Scutellum with anterior edge broadly concave; posterior apex bilobed (Fig. 9).

Description.

Length 3.8-4.5 mm. Integument grey-brown to red-brown; setae simple. Head: Antennal sensory elements beginning on antennomere 3 (Fig. 47); mandibles with apices bidentate. Labrum evenly convex; area between antennal fossa and compound eye unsculptured. Frons convex, with supra-antennal carinae concave in lateral view between carinae and labral base; supra-antennal carina forked near juncture with compound eye; frons without supra-orbital groove. Prothorax: Pronotum more than half as long as elytra, with punctures situated on tubercles; hind angles without carinae dorsally; sublateral carinae and incisions present; posterior edge of pronotum with 2 apices mesally; lateral carinae restricted to posterior half; hind angles not truncate dorsally; hypomeral hind edge sinuate (Fig. 4) immediately meso-ventrad of hind angles; procoxal cavities open. Prosternum with sides concave; anterior prosternal lobe long, covering labium in most; prosternal process curved dorsad more than 30°, ventral surface not carinate laterally. Mesothorax: Scutellum with anterior edge broadly concave, posterior apex bilobed (Fig. 9). Mesosternal cavity with lateral edges nearly straight. Elytra with intervals not costate. Hind wings area less than half of elytral area, venation not evident. Legs: Tarsi without apically extending lobes or pads; tarsal claws with one apex per side; metacoxal plate covers 1/6 of metatrochanter with legs withdrawn. Male genitalia: Abdominal segment 9 with tergite and sternites articulated at sides; parameres with apicolateral expansions, apices not forked, sides with 2 setae; aedeagus with basal struts approximately 0.8 times length of simple median lobe. Female genitalia: Ovipositor with baculae present; coxites flexible. Bursa copulatrix with colleterial glands indiscernible; without sclerotised spermathecae or sclerites; spermathecal gland duct without sclerotisation or row of diverticulae; anterior end of bursa with 2 pedunculate sacs sharing common attachment to bursa.

Etymology.

Masculine. Named for a genus of Cardiophorinae known only from southeastern USA.

Discussion.

Please see text of discussion above for argumentation for new genus. The posteriorly bilobed scutellum is unique among Elateridae examined. Known from: USA, coastal dunes by Gulf of Mexico, 1 sp. Often collected by sifting loose sand among dune vegetation.

The type species is transferred from Negastrius to Floridelater as: Floridelater americanus (Horn, 1871, Coptostethus ).