Taeniodera cupreicollis (Bourgoin, 1924) has been found only South Vietnam since it was described by Bourgoin in 1924 of the genus Macrontona. The type locality is Di Linh, Lam Dong Province. The species belong to T. egregia group. In Vietnam, there are 7 species of Taeniodera were recorded, and 4 of them are considered be endemic to the fauna of the country.
Sternocera aequisignata Saunders, 1866 is a brighten metallic green Buprestid beetle, the species was found in lowland, South Vietnam. The species with 3 other species Sternocera chrysis (Fabricius, 1775), Sternocera ruficornis Saunders, 1866 and Sternocera sternicornis (Linneus, 1758); have been found from Vietnam. Sternocera aequisignata is wide distribution among oriental area but not so common locally. There are 7 species of the genus were recorded from India to Indochina. Members of the genus mainly have 2 forms, red-brown and green wings.
Poecilocoris latus Dallas, 1848, a beautiful bug and known as a pet of tea plantation. It is a member of Scutelluridae family, Hemiptera/Heteroptera order. Members of the family characteristic with well developed of scutellum and covered the rest part of the body make them be similar to a beetle. They usually very colorful with brighten sport and shining metallic color body. They are true bugs so they life cycle without pupa phrase (incomplete metabolism).
Polyrhachis armata (Le Guillou, 1842) in an interesting spiny ant species, they found from South East Asia and South China. The species found in Indo-Australia region: Borneo, Indonesia, Malaysia, Philippines; Oriental region: Cambodia, India, Thailand; Palaearctic region: South China. The type locality of the species is Philippines. Syntype of the species now are deposited in British Museum of Nature History, London. In Vietnam, there has been 11 species of the genus were recorded and this is the 12th member, recorded the first time for Vietnam fauna by a photographers.
The species Lucanus marazziozum Zilioli, 2012 was described based on materials that collected from Laos (Houa Phan Province, NE of Laos). Latterly, it also was recorded from North of Vietnam, Yen Bai Province. The species is quite close to L. formosus (a species that also found from North Vietnam, Sa Pa, Lao Cai Province) but difference in dorsal teguments glabrous and mandibles.
Male holotype and female paratype of Lucanus marazziozum Zilioli, 2012 (photo from original description).
The taxon Stichophthalma suffusa tonkiana Fruhstofer, 1901 is a very complicated history during its discovery. The type of the subspecies was found from Than Moi, Tonkin (in original description) = Than Muoi, Lang Son Province, North Vietnam. However today, Than Muoi Village maybe not been the habitat of the taxon anymore because deforestation in whole the lowland of the area. Now they also was found from Tam Dao National Park, Vinh Phuc Province.
The subspecies was described as a subspecies of Stichophthalma howqua, a species that with type found from Shang Hai, East China. The taxon suffusa was described as a subspecies of howqua in the original description by Leech, 1892. The publication of 2008 by Mornastyrskii and Deviatkin showed that suffusa with the type found from Omei Shan, China and howqua are distinguish species and they separated by dark pattern of the hind wings on upper side. So the subspecies tonkiana that described by Fruhstofer in 1901 under the species S. howqua was moved to the species S. suffusa. However in the paper, authors also mentioned about further studies of subspecies level should be done in the future.
They are large size butterflies, and found in a good forests in North Vietnam, similar to other species of the genus, they are attracted by rotten fruits or animal dead body.