Nesotrinchus Obenberger, 1924

Bílý, Svatopluk, Kubáň, Vítězslav & Volkovitsh, Mark G., 2009, A study on the tribe Poecilonotini, with a revision of the subtribe Nesotrinchina subtrib. nov. and the description of a new genus and species from Papua New Guinea (Coleoptera: Buprestidae: Chrysochroinae), Acta Entomologica Musei Nationalis Pragae 49 (2), pp. 729-767 : 754

Genus Nesotrinchus Obenberger, 1924 , stat. restit.

( Figs. 71–97 , 110, 116–119 , 121, 127 )

Nesotrinchus Obenberger, 1924: 12 (in Buprestini : Dicercites), pl. 1, Fig. 2 , pl. 2, Figs. 10–12, 14 . Type species: Nesotrinchus simondsi Obenberger, 1924 , by original designation.

Nesotrinchus: THÉRY (1925) : 225 (as Nosotrinchus [sic!] – incorrect subsequent spelling; comment; synonym of Haplotrinchus ); OBENBERGER (1926a): 97 (characters; comment; as valid genus); OBENBERGER (1930): 359 (catalogue; in Buprestini : Dicercites); THÉRY (1937): 38, 39 (as Nosotrinchus [sic!]; characters); THÉRY (1943): 646 (as Nosotrinchus [sic!]; list of species; synonymy); BELLAMY (1985): 419 (catalogue; in Buprestinae : Dicercini ); BELLAMY (1986): 595 (catalogue; in Buprestinae : Dicercini ); BELLAMY (1987): 595 (comment; in Buprestinae : Dicercini ); HOŁYŃSKI (1993): 27 (comment; as valid genus near to Melobasina , not as synonym of Melobasina ; in Buprestinae : Buprestini : Haplotrinchina ); BELLAMY (1997): 76 (as synonym of Melobasina – misinterpretation of HOŁYŃSKI (1993: 27); in Buprestinae : Buprestini : Haplotrinchina ); VOLKOVITSH (2001) : 55 (catalogue; in Chalcophorinae [now Chrysochroinae ]: Poecilonotini : ‘ Nesotrinchus generic group’) 96 (characters); BELLAMY (2002):62 (catalogue; as synonym of Melobasina – misinterpretation;in Buprestinae : Psilopterini : Haplotrinchina ); BELLAMY (2003): 41 (catalogue; as synonym of Melobasina – misinterpretation; in Chrysochroinae : Poecilonotini : ‘ Nesotrinchus generic group’); BELLAMY (2008): 624 (catalogue; as synonym of Melobasina – misinterpretation; in Chrysochroinae : Poecilonotini : ‘ Nesotrinchus generic group’).

Diagnosis. The genus is characterised by a strongly caudiform elytral apex ( Figs. 71, 77, 79 , 82, 90 ); strongly developed supraantennal carinae with frons deeply depressed between them ( Figs. 75 , 86, 94 , 110 ); pronotum conical and usually with prominent, more or less distinct lateral knoll at midlength or anteriad of posterior angles ( Figs. 71, 77, 79 , 82, 90 ); anal ventrite of female sharply trispinose ( Figs. 76 , 87, 95 ); visible abdominal tergites moderately transverse, terminal tergite (T7) longer than wide; wing ( Fig. 121 ) with anal veins AA 4 +AA 3b +AP 1+2 and AP 3a free and aedeagi as in Figs. 117–119 .

Remarks. BELLAMY (2002, 2003, 2008) formally transferred all Nesotrinchus species to the genus Melobasina due to a misinterpretation of the work by HOŁYŃSKI (1993: 27) (see above). ‘ Buprestis wallisii Montrouzier, 1855 ’ (type locality: Pacific Islands: Wallis Island) was placed in the most catalogues ( KERREMANS 1903, OBENBERGER 1930, BELLAMY 2008) into the genus Haplotrinchus but in parallell also into the genus Paracupta Deyrolle, 1864 (now in Chrysochroinae : Chalcophorina ) ( KERREMANS 1903, OBENBERGER 1926b).As mentioned already by FAIRMAIRE (1881), this species is most probably similar to N. caeruleipennis ( Fairmaire, 1877) due to its size (ca. 13.0 mm) and characters mentioned in the original description. We also suppose that this species is congeneric with other species of the genus Nesotrinchus ; this genus forms a very compact taxon distributed only on the Pacific archipelagos of Fiji and Tonga and on the islands of Niue and Wallis.

Figures

Figs. 71–81. 71–76 – Nesotrinchus australicus (Kerremans, 1903), lectotype, female, 14.0 mm, ‘Australie’. 77–78 – N. simondsi Obenberger, 1924 (synonym of N. australicus), paralectotype, female (BMNH), 15.0 mm, Fiji. 79–81 – N. simondsi, lectotype, male, 12.0 mm, Fiji. 71, 77, 79 – habitus, dorsal view; 72 – habitus, lateral view; 73 – thorax, lateral view; 74, 78, 80 – prosternal process; 75 – head, frontal view. 76, 81 – anal ventrite.

Figs. 82–97. 82–87 – Nesotrinchus caeruleipennis (Fairmaire, 1877), lectotype, female, 11.0 mm, Tonga. 88–89 – N. orientalis Bellamy, 1987 (synonym of N. caeruleipennis Fairmaire), paratype, male (BMNH), 11.0 mm, Tonga. 90–95 – N. caeruleipennis (Thomson, 1878) (= thomsoni Bílý & Kubáň, nom. nov.), lectotype, female, 13.5 mm, Fiji. 96–97 – N. thomsoni Bílý & Kubáň, nom. nov., male, 11.5 mm, Fiji. 82, 90 – habitus, dorsal view; 83, 91 – habitus, lateral view; 84, 92 – thorax, lateral view; 85, 88, 93, 96 – prosternal process; 86, 94 – head, frontal view; 87, 89, 95, 97 – anal ventrite.

Figs. 109–120. 109, 111–115 – Ulaikoilia jelineki Bílý & Kubáň, gen. nov., sp. nov., holotype, male (109 – head, frontal view; 111 – prosternal process; 112 – anal ventrite; 113 – aedeagus; 114 – right antenna; 115 – subhumeral portion of elytral margin). 110, 116–117 – Nesotrinchus coeruleipennis (Fairmaire, 1877) (110 – head, frontal view; 116 – subhumeral portion of elytral margin; 117 – aedeagus, dorsal view). 118 – N. thomsoni Bílý & Kubáň, nom. nov., aedeagus, dorsal view. 119 – N. australicus (Kerremans, 1903), aedeagus, dorsal view. 120 – Pseudhyperantha jucunda Saunders, 1869, male, Malaysia, right antennomere 7, ventral view, apical fossa and lateral field (Photo: M. G. Volkovitsh).

Figs. 121–130. 121, 127 – Nesotrinchus australicus (Kerremans, 1903): paralectotype of a synonym N. simondsi Obenberger, 1924, female, Fiji, NMPC. 122, 129 – Ulaikoilia jelineki Bílý & Kubáň, gen. nov., sp. nov., holotype, Papua New Guinea. 123 – Melobasina apicalis Kerremans, 1900, female, Guadalcanal Island. 124 – Lamprodila (Ovalisia) auricollis (Deyrolle, 1864), female, Halmahera Island. 125 – Cardiaspis pisciformis Théry, 1904, female (NMPC), India.126 – Haplotrinchus pyrochlorus (Fairmaire, 1877), syntype, female (NMPC),Fiji.128 – Melobasina ignita (Théry, 1937) (synonym of M. apicalis), holotype, female, Bougainville Island. 130 – Haplotrinchus philippinensis Obenberger, 1928, syntype, female, Philippines, Luzon. 121–126 – right wing, dorsal view; 127–130 – abdomen, dorsal view; T7 = visible tergite 7; T8 = visible tergite 8.

Figs. 1–18. 1, 3–6 – Pseudhyperantha jucunda Saunders, 1869, male, 17.0 mm, Borneo. 2 – P. bloetei Théry, 1935, female, Sumatra. 7–13 – Cardiaspis pisciformis Théry, 1904, India (7–9, 11, 13 – female, NMPC, 17.0 mm; 10, 12 – male,NMPC).14–18 – Haplotrinchus philippinensis Obenberger, 1928,syntype, female,15.5 mm, Philippines, Luzon. 1, 7, 14 – habitus, dorsal view; 2 – ovipositor, dorsal view; 3, 8, 15 – habitus, lateral view; 4, 9, 16 – head, frontal view; 5, 10–11, 17 – prosternal process; 6, 12–13, 18 – anal ventrite.