Sharon Arias-Bohart & Elgueta 2015, gen. nov.
Creators: name: Arias-Bohart, Elizabeth T.
name: Elgueta, Mario
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Elateridae
Sharon

description: Sharon gen. nov.
urn:lsid:zoobank.org:act: A9250D0D-9E9D-4A12-B1E7-3C55FE9D8592
Type species: Asaphes? amoenus Philippi 1861: 743, here designated.
Diagnosis
This genus differs from all other elaterid genera by the following combination of characters: strongly serrate antennae from antennomere 4; frontoclypeal carena over antenna distinctive, diffuse at middle; frontoclypeal region advanced forward, concealing labrum at base; pronotum longer than wide, sides carinate and visible from above in almost all its enterity; in males pronotal sides straight, except at posterior angles; broad, protruding posterior angles, apices upwards; mesocoxa open to mesepimeron and mesepisternum; apical field of wing with one oblique, long narrow plate, reaching border of the wing. Sexual dimorphism present. Morphological characters of Sharon gen. nov. (Figs 1 A–B, 2) are further discussed with Hemicrepidius (Fig. 3), where the species amoenus was last placed by Blackwelder (1944).
Etymology
This generic name honors Sharon P. Lawler of Davis, California, a long time friend.
Description
Female
Body about 4.27–4.97 times as long as wide; pronotal sides narrower than elytral sides; elytral maximum width at anterior third; elytral apices softly rounded, not meeting at mid-line (Fig. 1 A–B. Holotype of type species MNNC).
Head s lightly declined at base, transverse, ratio of median length to greatest postocular width 0.14–0.22; eyes medium size, protuberant in both sexes, facetted, without interfacetal hairs; supra-antennal ridges raised above, each antennal fossa with deep curved invagination between antennal insertion and eye; antennomeres 2 and 3 significantly smaller that remaining antenomeres; 4–11 serrate, tubular-shaped. Female antennae shorter than male antennae (Fig. 2); frontoclypeal carena over antenna distinctive, slightly curved, diffuse at middle; frontoclypeal region advanced forward; labrum small, 1.6 times as long as wide; mandibles unidentate (Fig. 4A).
Prothorax elongate, about 1.19–1.30 times as long as greatest width; sides sinuate narrower anteriorly, carinate and emarginate; strongly convex medially; posterior angles broad, produced posterolateraly, apices upwards; base of pronotum without incisions; hypomera simple, basally non excavate; prosternum strongly combed; notosternal suture marginate, sinuated at procoxae, open at anterior end; prosternal process slightly narrower near base, then gradually expanded posteriorly, following procoxae in lateral view, extending well behind procoxae; hypomeron basally impressed to accomodate leg (femur), enlarged, covering epipleura; procoxae subglobular.
Scutellar shield convex, elongate, parallel-sided, anterior border diffuse, posteriorly with a small notch; elytra striate, about 2.34–3.16 times as long at midline as greatest width and 2.63–2.9 times as long as pronotum; parallel-sided at anterior third, narrowing towards posterior third, converging posteriorly, apices rounded, not meeting at central midline; humeri well developed; disc with 10 defined striae, each stria strongly punctate, deep punctures separated by less than one own diameter; mesoventrite not on same plane as metaventrite; articulating lobes of mesosternite rugose; anterior articulating surfaces of mesosternite almost perpendicular to median body line; mesocoxae projecting, mesocoxal cavities narrowly separated, open laterally to mesepimeron and mesepisternum; mesocoxal distance 0.25 times mesocoxal diameter; mesosternal posterior region sinuated, length 0.25 times mesocoxal diameter; mesosternal cavity sides mostly parallel, except at base (Fig. 5A); metacoxae obliquely oriented, with plates extending towards body side; posterior region of mesosternite with length 0.25 times mesocoxal diameter; metasternum between metacoxae elevated.
Hind wing about 2.46–3.0 times as long as wide; apical field about 0.17 times as long as total wing length, apical field with one oblique long, narrow plate, reaching border of the wing; radial cell well developed, elongate, length 5.0 times as long as wide; cross-vein r 3 long, length about 4.16 times length of radial cell, horizontal and arising away from r 4; base of RP very long, extending to wing base; R-M loop forming narrowly acute angle; MP 3+4 branching in 2 straight long veins (arrow); wedge cell legth about 2.7 times its width (Fig. 7A).
Genitalia: Bursa copulatrix elongate, at base with two globular glands, posterior area of bursa with more than 10 long spinules, anterior area of bursa with small sclerotized spicules (Fig. 8A, globular glands not visible on figure).
Tarsomeres 1–3 narrow at base, distally wider; tarsomeres 1–4 with lamellae (Fig. 10); tarsomere 4 significatly smaller than precedents; pretarsal claws simple; empodium short, not extending between claws.
Male
Same characters as female unless indicated as follows.
Body about 4.45–4.73 times as long as wide; pronotal sides straight; elytral length about 3.11–3.42 times pronotal length; antennomere 11 reaching posterior angles, antennomere 11 elongate, similar in size to antennomeres 4–8 (Fig. 2).
Prothorax elongated dorso-ventrally, somewhat flattened, except slightly combed medially, pronotal sides strongly emarginate, about 1.04–1.47 times as long as greatest width.
Genitalia: aedeagus symmetrical. Median lobe attached to parameres (Fig. 11).
Distribution
Southern Chile, provinces Arauco, Malleco, Cautín, Valdivia and Coihaique.
description: Published as part of Arias-Bohart, Elizabeth T. & Elgueta, Mario, 2015, Description of Sharon gen. nov. for the Chilean species Asaphes amoenus Philippi, 1861 (Coleoptera: Elateridae), pp. 1-15 in European Journal of Taxonomy 142 on pages 2-4, DOI: 10.5852/ejt.2015.142, http://zenodo.org/record/3785542