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Ent21 4 395 414 Kazantsev for Inet.Pmd Russian Entomol. J. 21(4): 395414 © RUSSIAN ENTOMOLOGICAL JOURNAL, 2012 A review of Erotinae and Dictyopterinae (Coleoptera: Lycidae), with description of new taxa and a note on biogeography of the subfamilies Îáçîð Erotinae è Dictyopterinae (Coleoptera: Lycidae), ñ îïèñàíèåì íîâûõ òàêñîíîâ è çàìå÷àíèåì ïî áèîãåîãðàôèè ïîäñåìåéñòâ Sergey V. Kazantsev Ñ.Â.Êàçàíöåâ Insect Centre, Donetskaya 13326, Moscow 109651, Russia. Èíñåêò-öåíòð, óë. Äîíåöêàÿ 13326, Ìîñêâà 109651, Ðîññèÿ. E-mail: [email protected] KEY WORDS: Coleoptera, Lycidae, new tribes, new genus, new species, taxonomy. ÊËÞ×ÅÂÛÅ ÑËÎÂÀ: Coleoptera, Lycidae, íîâûå òðèáû, íîâûé ðîä, íîâûå âèäû, òàêñîíîìèÿ. ABSTRACT. The subfamilies Erotinae and Dicty- Introduction opterinae are reviewed. Three new tribes, Lopherotini tr.n., Proterotaphini tr.n. and Macrolycinellini tr.n., The erotine and dictyopterine lineages of net-winged and a new subtribe, Pseudaplatopterina, subtr.n., are beetles have traditionally been treated together, either established. A new genus, Platycides gen.n., and seven as Erotinae [e.g., LeConte, 1881; Miller, 2002] or Dic- new species are described: Platycides holzschuhi, Tapho- tyopterinae [e.g., Kleine, 1929, 1933], despite the evi- mimus huaphanensis, Dictyoptera phoupanensis, D. pa- dent difference in their pronotal structure, possibly nicola, D. laomontana, D. recticarinata (Laos) and because of the similarity of their filiform antennae, D. triachroma (Vietnam), spp.n. Dictyoptera bi- regularly reticulate elytra and, to some extent, aedeagal coloricornis (Pic, 1933), syn.n. is put in synonymy with structure. When it was disclosed that there existed two D. quadricostata (Pic, 1927). Coloberos incisus (Pic, names for the group, the younger Dictyopterinae was 1925), comb.n., C. pahanganus (Kleine, 1939), synonymized with Erotinae [Bocák & Bocáková, 1990]. comb.n., C. malaccanus (Pic, 1922), comb.n. and The validity of dictyopterines, however, was restored C. klossi (Blaire, 1928), comb.n. are transferred to shortly afterwards [Kazantsev, 2004, 2006], after cladistic Coloberos Bourgeois, 1885 from Pyropterus Mulsant, analyses of morphological characters of the two groups 1838. The aedeagus of Dictyoptera laosensis (Pic, 1926) were carried out that revealed crucial differences in ab- is illustrated. A checklist of Erotinae and Dictyopteri- dominal and genital structures between the two. In a more nae is provided, as well as a note on their biogeography. recent paper, with a molecular based classification of ÐÅÇÞÌÅ. Ïðèâîäèòñÿ îáçîð ïîäñåìåéñòâ Erotinae Lycidae, the independent status of both lineages was also and Dictyopterinae. Óñòàíàâëèâàþòñÿ òðè íîâûå òðè- confirmed [Bocák & Bocáková, 2008] although the áû, Lopherotini tr.n., Proterotaphini tr.n. è authors classification in general, which happens to be in Macrolycinellini tr.n., à òàêæå íîâàÿ ïîäòðèáà, deep conflict with the published data on morphology and Pseudaplatopterina, subtr.n. Îïèñûâàåòñÿ íîâûé ðîä, biogeography of Lycidae [including their own, e.g. Bocák Platycides gen.n., è ñåìü íîâûõ âèäîâ: Platycides & Bocáková, 1990], can hardly be accepted. Also, certain holzschuhi, Taphomimus huaphanensis, Dictyoptera errors, such as defining position of the tribe Slipinskiini phoupanensis, D. panicola, D. laomontana, D. recti- (type genus Aferos Kazantsev, 1991) on the basis of carinata (Ëàîñ) è D. triachroma (Âüåòíàì), spp.n. molecular data from the totally different Flagrax Kazant- Dictyoptera bicoloricornis (Pic, 1933), syn.n. ñâîäèòñÿ sev, 1991 (tribe Dictyopterini) does not add credibility to â ñèíîíèìû ê D. quadricostata (Pic, 1927). Coloberos their conclusions. Nevertheless, it seems reasonable, pend- incisus (Pic, 1925), comb.n., C. pahanganus (Kleine, ing a comprehensive revision of the classification of the 1939), comb.n., C. malaccanus (Pic, 1922), comb.n. è family, to regard erotines and dictyopterines as indepen- C. klossi (Blaire, 1928), comb.n. ïåðåíîñÿòñÿ â dent lineages, although they still may prove to represent a Coloberos Bourgeois, 1885 èç Pyropterus Mulsant, 1838. larger single clade [as suggested in Kazantsev, 2012a]. Ïðèâîäÿòñÿ èëëþñòðàöèè ýäåàãóñà Dictyoptera The predominantly Holarctic Erotinae and Dicty- laosensis (Pic, 1926). Ïðèâîäèòñÿ ñïèñîê è êðàòêèé opterinae have been receiving decent attention in recent îáçîð áèîãåîãðàôèè Erotinae è Dictyopterinae. years [e.g., Bocák & Bocáková, 1991, 1999; Kazantsev, 396 Sergey V. Kazantsev 19902010; Matsuda, 2010], yet new taxa at different DISTRIBUTION. Erotini includes two subtribes, Eroti- level are still being discovered. na Leconte, 1881 and Pseudaplatopterina subtr.n. The distri- A morphological analysis of these groups shows that bution area of the tribe lies in the Holarctic, represented by three new tribes, Lopherotini tr.n., Proterotaphini tr.n. isolated patches on its periphery (Maps 12). and Macrolycinellini tr.n., and a new subtribe, Pseuda- Erotina Leconte, 1881 platopterina, subtr.n., have to be erected. Their de- Type genus: Eros Newman, 1838. scriptions, as well as certain taxonomic notes that were DIAGNOSIS. Erotina may be distinguished from Pseu- deemed necessary, and descriptions of a new erotine daplatopterina subtr.n. by the combination of complete pro- genus and several new dictyopterine species are pre- notal carinae, forming seven areoles (Fig. 1), long and round- sented below. ed distally parameres of the aedeagus and widened proximal- ly phallobase (Fig. 3). DISTRIBUTION. Erotina includes four genera, Platycis Material and methods Thomson, 1864, Erotides Waterhouse, 1879, Konoplatycis Nakane, 1969 and Platycides gen.n. The distribution area of Specimens used as material for this study were the new subtribe lies in the Holarctic, represented by isolated dissected after being softened in water, with the genita- patches on its periphery, also somewhat penetrating into the lia extracted, cleared for several hours in 10% KOH at extreme north-east of the Oriental zone (Map 1). room temperature, then placed in microvials with glyc- Platycides Kazantsev gen.n. erine. MSP-1 zoom stereoscopic dissecting microscope Type species: Platycides holzschuhi Kazantsev gen.n. with x8x80 magnification range was used. DESCRIPTION. Alate, flattened, elongate. Head trans- The following acronyms are used in the paper: verse, slightly narrowed behind eyes. Fastigium acute, ca. ICCM Insect Center Collection, Moscow; 70, frontal process triangular. Eyes small, spherical. La- MNHN Muséum national dHistoire naturelle, Paris. brum small, transverse, sclerotized, entirely overlapped by frons. Mandibles small, abruptly curved curved in the mid- dle. Maxillary palps robust, 4-segmented, with ultimate pal- Taxonomy pomere elongate, elliptical, apically narrowed and flattened. Labium consisting of non-paired transverse mentum, non- Erotinae Leconte, 1881 paired prementum and a pair of small 3-segmented palps; Type genus: Eros Newman, 1838. ultimate palpomere apically widened and flattened. Gula DIAGNOSIS. Erotinae may be distinguished from other short. Antennal prominence conspicuous, with deep median lycids by a combination of seven-areole pronotum, with two impression; antennal sockets widely separated. Antenna 11- antero-median areoles, two antero-lateral areoles, two poste- segmented, long, almost attaining to elytral apices, filiform, ro-lateral areoles and a postero-median areole (Fig. 1), well with antennomere 2 small, considerably shorter than anten- developed and more or less regular reticulation between nomere 3; antennomeres 311 with short dense sub-erect elytral costae, elongate parameral tube and little modified pubescence (Fig. 1). median lobe of the aedeagus (Figs 34, 7), long speculum Pronotum transverse, subrectangular, ca. 6 times shorter gastrale with long lateral arms (Fig. 5) and very long free and noticeably narrower than elytra, with seven prominent valvifers of the external female genitalia (Fig. 6). areoles: two antero-median areoles separated by narrow medi- DISTRIBUTION. Erotinae includes two tribes, Erotini an carina, two antero-lateral areoles, two postero-lateral are- and Lopherotini tr.n., distributed in the Holarctic in isolated oles and postero-median areole in posterior third, open near pockets on its periphery, somewhat expanding into the ex- posterior pronotal margin and bearing very narrow median treme north-east of the Oriental zone (Map 9). carina (Fig. 1). Prosternum narrow, T-shaped, slightly emar- REMARKS. Erotinae may be easily differentiated by a ginate anteriorly. Mesothoracic spiracles short. Mesoventrite combination of unique apomorphies, the seven-areole prono- transverse, anteriorly emarginate, without median suture; tum (Fig. 1) and long speculum gastrale with long lateral mesepimeron conspicuously shorter and narrower than arms (Fig. 5), and apparently deserves an equal rank with mesepisternum. Mesonotum with scutellum not attaining to Dictyopterinae. Lopherotini tr.n., which seems to be rather anterior margin, mesoscutal halves not divided; scutellum with different from the nominative tribe, does not share all afore- relatively long postnotal plate, emarginate at apex. Elytra long, said apomorphies, however the structure of the pronotal parallel-sided, with four primary costae; interstices with one carinae in one of its members, the fossil Protolopheros, row of regular, mostly transverse cells; bottom of cells gla- Kazantsev, 2012, appears to be reminiscent of that of Erotini. brous; pubescence distributed along longitudinal and trans- The oriental genus Microcoloberos Pic, 1913,
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