Microhoria (Liparoderus)

Kejval, Zbyněk & Chandler, Donald S., 2020, Generic revision of the Microhoriini with new species and synonymies from the Palaearctic Region (Coleoptera: Anthicidae), Acta Entomologica Musei Nationalis Pragae 60 (1), pp. 95-154 : 110-112

Liparoderus LaFerté-Sénectère, 1849

( Figs 1 , 11, 12 , 32 , 39 , 50, 52 , 127 )

Anthicus subg. Liparoderus LaFerté-Sénectère, 1849a: 85 . Type species: Anthicus insignis Lucas, 1843 , by monotypy.

Anthicus (Liparoderus) : LAFERTÉ- SÉNECTÈRE (1849c): 229 (repeated description); HEYDEN (1883): 141 (catalogue); HEYDEN (1891): 267 (catalogue); REITTER (1906): 443 (catalogue); PIC (1911b): 30 (catalogue); WINKLER (1927): 846 (catalogue); FUENTE (1932): 117 (catalogue, Iberian Peninsula).

Microhoria (Liparoderus) : BONADONA (1955): 102, 104 (key to species, France); BONADONA (1958b): 296 (characters, checklist, key to species); BONADONA (1974): 108 (checklist, France); BUCCIARELLI (1980): 191, 194 (characters).

Liparoderus : BONADONA (1988): 13 (genus status, characters, key to species); BONADONA (1990a): 21, 23 (characters, key to genera, France); BONADONA (1991): 126 (characters); NARDI (2003): 58 (note); CHANDLER et al. (2004): 113, 119 (nomenclature, list); CHANDLER et al. (2008): 438 (catalogue); BONADONA (2013): 10, 78, 80, 107 (characters, key to genera, France); GOUVÈRS & PONEL (2014): 559 (checklist, France).

Species/specimens examined. Liparoderus insignis , Spain [no precise data], Z. Kejval det. ( ZKDC); L. venator (Dufour, 1849), Spain, Alicante, Z. Kejval det. ( ZKDC).

Diagnosis. (i) mandibles on inner margin always with conspicuous, apically bluntly pointed tooth-like process, Fig. 52 ; (ii) anterior margin of procoxal cavity with distinct paired incisions, Fig. 50 ; (iii) intercoxal process of proventrite well-developed; (iv) postcoxal bridge simple; (v) mesoventrite conspicuously transverse, with strongly expanded/ lobed, apically rounded lateral arms, Fig. 11 ; (vi) mesepisterna with transverse groove, Fig. 12 ; (vii) mesepisterna distinctly touching medially; (viii) pore of mesothoracic gland situated ventrally, orifice quite distinct, sclerotized, Fig. 32 ; (ix) intercoxal process of abdomen conspicuously long, narrow and sharply pointed; (x) posterior transverse carina of metacoxae incomplete, reduced laterally, Fig. 39 ; (xi) meso- and metatibiae with two terminal spurs; (xii) basal piece of tegmen well-developed, tubular.

Distribution. Western Palaearctic Region (5 species); restricted to the northern, Mediterranean part of Africa and south-western Europe ( Spain and southern France) ( CHANDLER et al. 2008).

Relationships. Liparoderus is a rather distinctive genus, and is undoubtedy closely related to Microhoria . It was treated as its subgenus by BONADONA (1955), despite having priority (NARDI 2003). It differs from Microhoria by three major characters (vii, viii, x); the medially touching mesepisterna and well-defined pore of the mesothoracic gland (vii, viii) are undoubtedly derived and unique within the Microhoriini . These states are known, however, in some genera from different Anthicinae tribes, e.g. Anthelephila, Acanthinus LaFerté-Sénectère, 1849, and Ischyropalpus LaFerté-Sénectère, 1849.

In addition, the two species examined display peculiar short, slit-like metaventral foveae, robust terminal spurs of the metatibiae that are articulated rather subapically, and a conspicuously long, narrow, and sharply pointed intercoxal process of the abdomen. The mandibular process (i), noted already by CHANDLER (2010), is also present in Microhoria , though it is less prominent, and has been found only in a single unidentified species of the M. fasciata speciesgroup from Spain (out of the seven species of same group examined, which holds 107 species in total).

Figures

Figs 1–6. 1 – Liparoderus venator (Dufour, 1849), Spain, Zaragoza (D. Molina det., photo by B. Campo, www.biodiversidadvirtual.org.). 2 – Microhoria raveli (Pic, 1899), female internal reproductive structures, after DE MARZO (1996). 3–6 – Aedeagus in ventral view: 3 – Sapintus oceanicus (LaFerté- Sénectère, 1849), India, Tamil Nadu, Poovar (ZKDC); 4 – Anthelephila cyanea (Hope, 1833), South Africa, Western Cape prov., Greyton (ZKDC); 5 – Microhoria garavuti sp. nov., holotype; 6 – M. cervi sp. nov., paratype, Al Mughsayl (a = parameral plate, b = phallobase, c = baculi of endophallus, d = primary gonopore). Scale not specified.

Figs 7–14. Mesothorax in ventral (left) and lateral (right) view: 7, 8 – Neocrohoria melanura (Fairmaire & Germain, 1863), Chile, Malleco prov., 4 km W Victoria (DCDC); 9, 10 – Aulacoderus mutatus (Gemminger, 1870); 11, 12 – Liparoderus venator (Dufour, 1849); 13, 14 – Microhoria oedipus (Chevrolat, 1860). Scale bars: 100 μm (Figs 7–10); 200 μm (Figs 11–14).

Figs 31–38. 31 – Neocrohoria melanura (Fairmaire & Germain, 1863), Chile, Malleco prov., 4 km W Victoria (DCDC), setae of metepisterna.32 – Liparoderus insignis (Lucas, 1843), antero-median margin of mesothorax. 33–36 – Mesothorax in lateral view (detail): 33 – Microhoria oedipus (Chevrolat, 1860); 34 – M. longiceps (LaFerté-Sénectère, 1849) comb. nov.; 35 – M. caeruleicolor (Pic, 1906) comb. nov.; 36 – M. gigas (Pic, 1899). comb. nov. 37, 38 – Falsophilus minutus (Pic, 1894), after KEJVAL (2015): 37 – prothorax in ventro-lateral view; 38 – intercoxal process of abdomen. Scale bars: 100 μm.

Figs 39–46. 39, 40 – Metacoxa: 39 – Liparoderus venator (Dufour, 1849); 40 – Microhoria oedipus (Chevrolat, 1860). 41–46 – Apex of male elytron: 41 – Microhoria fasciata (Chevrolat, 1834); 42 – M. paupercula (LaFerté-Sénectère, 1849) comb. nov.; 43 – M. oedipus (Chevrolat, 1860); 44 – M. terminata (W. L. E. Schmidt, 1842); 45 – M. caeruleicolor (Pic, 1906) comb. nov; 46 – M. heydeni (Marseul, 1879) comb. nov. Scale bars: 20 μm (Figs 41, 44–46); 50 μm (Figs 42, 43), 200 μm (Figs 39, 40).

Figs 47–53. 47, 48 – Neocrohoria melanura (Fairmaire & Germain, 1863), O’Higgins prov., Cuesta Chada (ZKDC): 47 – aedeagus in lateral (left) and ventral (right) view; 48 – fused baculi of endophallus. 49, 50 – Prothorax in ventro-cranial view: 49 – Aulacoderus mutatus (Gemminger, 1870); 50 – Liparoderus venator (Dufour, 1849). 51, 52 – Right mandible: 51 – Microhoria oedipus (Chevrolat, 1860); 52 – Liparoderus insignis (Lucas, 1843). 53 – M. oedipus, metendosternite. Scale bars: 0.2 mm – A (Figs 51, 52); 0.5 mm – B (Fig. 50), C (Fig. 53), D (Figs 47, 48, 49).

Figs 123–137. Habitus: 123 – Neocrohoria melanura (Fairmare & Germain, 1863), O’Higgin prov., Cuesta Chada (ZKDC); 124 – Aulacoderus mutatus (Gemminger, 1870); 125 – A. tuberculifer (van Hille, 1985), Western Cape, Soutpan (ZKDC); 126 – Falsophilus minutus (Pic, 1894), Western Cape, Cape Point (ZKDC); 127 – Liparoderus insignis (Lucas, 1843), Spain, Farlete (ZKDC); 128 – Microhoria caeruleicolor (Pic, 1906) comb.nov.; 129 – M. fugiens (Marseul, 1896) comb. nov.; 130 – M. posthuma (Krekich-Strassoldo, 1931) comb. nov., India, Loharket (ZKDC); 131 – M. fasciata (Chevrolat, 1834); 132 – M. vosseleri (Pic, 1894); 133 – M. heydeni (Marseul, 1879) comb. nov.; 134 – M. longiceps (LaFerté-Sénectère, 1849) comb. nov.; 135 – M. proterva (Krekich-Strassoldo, 1931), syntype (BMNH); 136 – M. antalya sp. nov.; 137 – M. globipennis (Pic, 1897), Turkey, Şenköy (ZKDC).