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A key, an annotated checklist with detailed distribution, biological and host information, and color photographic plates are provided for the 91 species of dacine fruit flies (Diptera: Tephritidae: Dacini) known to occur in Oceania. Dacus virgatus Coquillett, previously a synonym of Bactrocera psidii (Froggatt), is instead considered a junior synonym of B. facialis (Coquillett). The species originally described in 1971 as Dacus (Asiadacus) perpusillus Drew, later reassigned as Bactrocera (Sinodacus) perpusilla (Drew) and in recent years as Zeugodacus (Sinodacus) perpusillus (Drew) actually belongs to genus Dacus, and is transferred back to Dacus, but to the subgenus Neodacus, restored combination. The presence of B. redunca (Drew) is recorded for the first time in New Caledonia. New male lure records include isoeugenol and dihydroeugenol for both B. neoxanthodes Drew and Romig and B. quadrisetosa (Bezzi) and zingerone for Dacus taui (Drew and Romig), all in Vanuatu.
ZooBank registration. urn:lsid:zoobank.org:pub:A105F057-F2A4-4C14-B82E-14912B319D57
A key, an annotated checklist with detailed distribution, biological and host information, and color photographic plates are provided for the 91 species of dacine fruit flies (Diptera: Tephritidae: Dacini) known to occur in Oceania. Dacus virgatus Coquillett, previously a synonym of Bactrocera psidii (Froggatt), is instead considered a junior synonym of B. facialis (Coquillett). The species originally described in 1971 as Dacus (Asiadacus) perpusillus Drew, later reassigned as Bactrocera (Sinodacus) perpusilla (Drew) and in recent years as Zeugodacus (Sinodacus) perpusillus (Drew) actually belongs to genus Dacus, and is transferred back to Dacus, but to the subgenus Neodacus, restored combination. The presence of B. redunca (Drew) is recorded for the first time in New Caledonia. New male lure records include isoeugenol and dihydroeugenol for both B. neoxanthodes Drew and Romig and B. quadrisetosa (Bezzi) and zingerone for Dacus taui (Drew and Romig), all in Vanuatu.
ZooBank registration. urn:lsid:zoobank.org:pub:A105F057-F2A4-4C14-B82E-14912B319D57
Descriptions of the following 23 species of Macrotomoderus Pic, 1901 new to science, from continental China, are provided as an addition to the recently published review of the genus from China and Taiwan (Telnov 2018): M. angelinii, M. belousovi, M. bicrispus, M. boops, M. bordonii, M. dali, M. daxiangling, M. femoridens, M. hajeki, M. hartmanni, M. hengduan, M. imitator, M. kabaki, M. korolevi, M. lapidarius, M. muli, M. palaung, M. similis, M. tenuis, M. transitans, M. truncatulus, M. usitatus, and M. wudu spp. nov. Additional records are provided for some poorly known species. The identification key to the species of Macrotomoderus from China, the Japanese Archipelago, and Taiwan is herewith significantly supplemented and updated. Biogeographical peculiarities and altitudinal gradient of Macrotomoderus distribution in continental China are briefly discussed.
The monotypic ant genus Igaponera gen. nov. is proposed to include its type species I. curiosa (Mackay & Mackay, 2010). Igaponera gen. nov. is described and phylogenetically compared with other ponerine genera based on external morphology. The type species is known from a single gyne originally described in the genus Pachycondyla Smith, 1858. Igaponera curiosa is easily diagnosed by: costate sculpture on head, mesosoma, and petiole; short, robust, triangular mandibles with blunt apex; relatively large eyes set at mid-length on sides of head; lack of stridulitrum; and presence of distinct but relatively small arolia. Putative apomorphies of the new genus are: cuticular flange concealing metapleural gland opening; vertically standing hypostomal tooth with recessed base; stout mandibular shape with blunt apex; absence of stout spine-like setae on meso- and metatibial apices. Our phylogenetic results based on morphology suggest that Neoponera Emery, 1901 and Pachycondyla are the closest lineages to Igaponera, which shows intermediate characteristics as compared to those genera. The genus is apparently arboreal, known only from a seasonally flooded IgapĆ³ forest near Manaus, Brazil. Despite the collection site being frequented by researchers, no other specimens of this genus have been collected in over 40 years prior to this study.