CATELANUS AND FUSIMORPHUS (COLEOPTERA, ELATERIDAE, AGRYPNINAE)

The historical review and the diagnosis for the monotypical genera Catelanus Fleutiaux, 1942 and Fusimorphus Fleutiaux, 1942 are presented. Catelanus trilineatus (Castelnau, 1836) and Fusimorphus submetallicus (Fleutiaux, 1924) are redescribed and illustrated and new diagnostic characters are raised up. The historical review and the discussion on the remainder Neotropical genera of Hemirhipini are also included.


INTRODUCTION
The tribe Hemirhipini is formed by 21 genera (CASARI-CHEN, 1994;CASARI, 1996b), distributed by all over the world.Nine genera and about 92 species are recorded from Neotropical region.A phylogenetic hypothesis for the genera of this tribe was proposed by CASARI-CHEN (1994), based on the study of the larger number of species available in each genus.This work evidenced that several genera included non congeneric species, and specific revisions were required.The historical review of the Neotropical genera is presented.
The genus Chalcolepis Candèze, 1857 was monotypical until 1999 when CASARI described three species.The genus is formed by four species, recorded from Mexico and Central and north of South America.
Chalcolepidius Eschscholtz, 1829 is the larger Neotropical genus of Hemirhipini with 88 catalogued species.The study of large series of the majority of species revealed that three species were not congeneric and were removed from the genus, and 34 species were synonyms.Besides, two species were revalidated and 12 species were described.The genus is formed by 63 species, recorded from North, Central and South America.
The genus Catelanus is characterized especially by integument very bright with glabrous appearance, yellow with longitudinal bands from ferrugineous to black, on pronotum and elytra, mesosternal cavity declivous on distal 2/3, tergite VIII of male 1.4 times longer than wide, median lobe of aedeagus constricted near base and apex of ovipositor bearing a tuft of setae.
Redescription.Length: 22-38 mm.Integument bright, from yellow to ferrugineous; frons ferrugineous-yellow with triangular median basal, and sometimes, irregular median anterior, blackspot; pronotum ferrugineous-yellow with three longitudinal elliptical black bands, usually not reaching margins and lateral interrupted near base; in some specimens longitudinal median band of pronotum reaches anterior margin or, lateral bands broken or three bands are fused at base (figs.3, 4); elytra yellow on basal fourth, gradually ferrugineous apicad; each elytron with narrow sutural band and lateral wide black band on distal ¾; scutellum from yellow with brown borders to totally black (fig.1).Prosternum with longitudinal median elliptical black band, absent in some specimens; ventrites yellow with longitudinal median darker band varying from narrow band to reaching almost whole ventrite width; patches brown with black borders.Pubescence simple, ferrugineous on frons and pronotum and yellowish on elytra; ventrally, pubescence yellowish-white and longer; tibiae bearing long and bristle setae; tarsal segments with ventral thick setae and claws with one long basal seta.
Fusimorphus was firstly defined in the FLEUTIAUX (1942) key, together with the other genera erected from Hemirhipus species.The first description of the genus was presented by GOLBACH (1976).In 1994, this author presented a catalogue and keys to subfamily and genera of Elateridae from Central and South America.CASARI-CHEN (1985) presented a generic diagnosis and in 1994 included Fusimorphus in the phylogeny of the Hemirhipini genera.
The genus Fusimorphus is characterized especially by fusiform body, integument of elytra with metallic reflex, scutellum folded at middle, hind angles of pronotum constricted at apex and apex of ovipositor with membranous setous lobe.
Frons narrow on distal third with anterior margin carinate; concave medioanteriorly with fore angles raised; punctation moderately coarse and dense.Nasal plate high, concave and punctate.Antennae flabellate and 12-segmented in both sexes, longer in male (fig.21).
Pronotum (fig.20) longer than wide, slightly narrow apicad; strongly convex from lateral margins; punctation moderately coarse and dense with lateral margins forming smooth band; anterior margin sinuous; hind angles divergent, with apex smooth and constricted; median basal tubercle smooth, bright and rounded.Prosternum (fig.23 Remarks.According to CASARI-CHEN (1994) Catelanus and Fusimorphus belong to subtribe Hemirhipina, especially by the antennae flabellate and 12-segmented in both sexes.These two genera were included in different groups, separated especially by different coloration pattern and body shapes.Besides the characters above, the mesosternal cavity and the scutellum shapes and the lateral margins of pronotum are very different.The male and the female genitalia are very similar, especially the shape of parameres apex, bursa copulatrix and spermathecae.Both genera present same geographical distribution, wider in Catelanus.