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The four entomological expeditions in Vietnam organized by the Natural History Museum of the University of Florence and the Vietnam National Museum of Nature during the period 2010-2013 are illustrated. The full list of collected material is given. Remarks on Coleoptera Lucanidae and Brentidae, Hemiptera Gerromorpha, Nepomorpha and Leptopodomorpha,...
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The taxonomy of the tribe Tachygerrini (Hemiptera: Gerridae: Gerrinae) was studied. The tribe comprises 2 genera: Eurygerris Hungerford and Matsuda (with 10 species) and Tachygerris Drake (with 7 species). The revision was based on the examination of 19 entomological collections in the neotropics. The type materials of T. opacus, T. quadrilineatus,...
The taxonomy of the tribe Tachygerrini (Hemiptera: Gerridae: Gerrinae) was studied. The tribe comprises 2 genera: Eurygerris Hungerford and Matsuda (with 10 species) and Tachygerris Drake (with 7 species). The revision was based on the examination of 19 entomological collections in the neotropics. The type materials of T. opacus, T. quadrilineatus,...
Citations
... For instance, 102 species are known from Thailand (Pinratana & Maes, 2003;Ek-Amnuay, 2008;Choeyjanta et al., 2018), 134 in Vietnam (Dang & Tran, 2003;Schenck, 2014), and more than 131 in Myanmar (Fujita, 2009;Maes, 2022), but only 66 in Laos (Maes, 2000(Maes, , 2022. While the number of species in Vietnam is the highest, it is most likely due to the presence of the many different biotopes from North to South and the presence of isolated mountains acting as an important factor for speciation (Van Lien et al., 2014). Nevertheless, in Cambodia the lucanid fauna is still poorly known. ...
To date, no species catalogue of stag beetles (Lucanidae) has been compiled for Cambodia. According to the available literature, we assembled the checklist based on the previously recorded and recognized Cambodian lucanid species in the country. In the present paper, we newly record four species from Cambodia: Falcicornis axisopsis (Séguy, 1954); Neolucanus similis Bomans & Ratti, 1976; Prosopocoilus suturalis (Olivier, 1789); and Prosopocoilus jenkinsi (Westwood, 1848). An updated checklist of the Cambodian stag beetles is given. The total number of the Cambodian lucanid species has now reached 29, but this species count is considerably less diverse than those in neighboring countries. Our study suggested that this poor diversity is not primarily due to biogeography or small country size but to a lack of research effort.
... These specimens were collected in the framework of a research Memorandum of Understanding (see Vu et al. 2014) signed between the Natural History Museum of the University of Florence, Italy, and the Vietnam National Museum of Nature in Hanoi. ...
Provespa barthelemyi (du Buysson, 1905) is recorded for the first time in several
provinces of Vietnam. An overview of the distribution of this species in this country
is given.
... During the study of brentid material coming from Vietnam and Thailand we found three specimens belonging to a new species of Calodromus Guérin-Méneville, 1832, described here. Two of the three specimens were collected during our seventh expedition to Vietnam, in the framework of a research Memorandum of Understanding (see VU et al., 2014) signed between the Natural History Museum of the University of Florence, Italy, and the Vietnam National Museum of Nature in Hanoi. The genus Calodromus belongs to the brentid subfamily Cyphagoginae Kolbe, 1892 and to the tribe Cyphagogini Kolbe, 1892. ...
Epaphius bartolozzii n. sp. is described from Southern Vietnam. Some morphological characters of the genera Epaphius Leach, 1819, Epaphiopsis Uéno, 1953, Iga Uéno, 1953 and Tienmutrechus Suenson, 1957 are discussed.
A biodiversity survey was conducted in spring 2012 in the eastern part of Chu Mom Ray National Park, Kon Tum Province, southern Vietnam, to identify and record predaceous arthropod taxa that are known to include reptile and amphibian prey in their diet as well as those of large body size (≥ 60 mm). Five drift fence arrays with pitfalls and double-ended funnel traps were set up in lowland evergreen forest and monitored over 40 nights. Additionally, 22 nocturnal transect walks were conducted along an adjacent forest stream. Recorded large arthropod predators comprise of one Asian forest scorpion species (Scorpiones, Scorpionidae), at least three different tarantula species in the subfamily Selenocosmiinae (Araneae, Theraphosidae), one scolopendromorph centipede species (Scolopendromorpha, Scolopendridae), one scutigeromorph centipede (Scutigeromorpha, Scutigeridae), one giant water bug species (Hemiptera, Belostomatidae), one creeping water bug species in the family Naucoridae (Hemiptera), two water scorpion species (Hemiptera, Nepidae), one species of army ant (Hymenoptera, Formicidae) and four species of praying mantises (Mantodea, Mantidae). In two cases, the predation of army ants on caecilians (Gymnophiona, Ichthyophiidae) was observed. Among the presented taxa, giant water bugs are of special ecological and conservation concern. They are key predators of aquatic herpetofauna and considered as threatened in parts of East Asia.
Rhynchophorus ferrugineus is considered the worst pest of palm species and few natural enemies are reported for this parasite in its area of origin. Here we report the first recovery of the entomopathogenic fungus Metarhizium pingshaense associated with R. ferrugineus from Vietnam. The morphological, biochemical and toxicological features of this strain were studied and compared with those of another Metarhizium strain associated with this weevil in Sicily (Italy), an area of recent introduction. The potential use of these fungi as biocontrol agents was tested against adult insects in laboratory trials and a similar mortality rate was found. Both strains were able to produce toxins and cuticle degrading proteases, but they showed dissimilar enzymatic and toxicological profiles, suggesting a different virulence activity.This article is protected by copyright. All rights reserved.
