Polyrhachis bicolor Smith, 1858

Polyrhachis bicolor Smith, 1858 is a wide distributed species, the holotype was collected from Myanmar and deposited in London Museum of Nature History. They now have been recorded from Australia to IndoMalaya Region as well as China. Name of the species maybe express the colors of the ant (bi=two), they are characteristic with dark grey head and thorax and red abdomen and legs.
The species has 9 subspecies: Polyrhachis bicolor atrocastanea, Polyrhachis bicolor aurata, Polyrhachis bicolor aurinasis, Polyrhachis bicolor brachyacantha, Polyrhachis bicolor comata, Polyrhachis bicolor erecta, Polyrhachis bicolor exflavicornis, Polyrhachis bicolor fumata, Polyrhachis bicolor weyeri.

Polyrhachis bicolor Smith, 1858 - photographed by Ta Thanh

Harpegnathos venator (Smith, 1858)

Harpegnathos venator (Smith, 1858) is large size ant, it is the first time the species was recorded for Vietnamese fauna. The species found from India, China, Thailand and also Malaysia, Indonesia and Borneo. The holotype of the species is deposited in London Museum of Nature History. In Vietnam, this species was recorded the first time by Nguyen Huu Le Loc from Van Quan, Lang Son Province, North Vietnam.

Harpegnathos venator (Smith, 1858) - photographed by Nguyen Huu Le Loc

Hypolycaena amasa amasa Hewitson, 1865

It is a beautiful species of Lycaenidae butterfly with very long tails. There are 2 subspecies of the species in Indo-Burma region: Hypolycaena amasa amasa Hewitson, 1865 and Hypolycaena amasa maximinianus (Fruhsrtorfer,1912). Two subspecies maybe separated by the South East Asia Sea, while the Hypolycaena amasa amasa found from the main land of Indochina area, Hypolycaena amasa maximinianus was recorded from South of Thailand to Indonesia-Malaysia and Borneo part of South East Asia.
In Vietnam, this subspecies was found almost part from North (Ha Giang) to South (Lam Dong and Dong Nai):
Sometime the species was recorded under its synonym: Zeltus etolus

    

Hypolycaena amasa amasa Hewitson, 1865 - photographed by Nguyen Ba Quang

Dorcus curvidens babai Fujita, 2010

Dorcus curvidens babai Fujita, 2010 was described as new subspecies based on materials from Da Lat, Lam Dong Province, South Vietnam. The subspecies named after Mr. Masaru Baba, a Japanese beetle collector.

Dorcus curvidens babai Fujita, 2010 - photographed by Cuong Do

Glanycus insolitus Walker, 1855

Glanycus insolitus Walker, 1855, a member of Leaf Moth Thyrididae, male and female are very difference in color. The male with shining dark blue wings but female wings are red with black and dark blue marking. They are very small moth and close to members of Sphingidae, colorful insects but attracted by a light trap. They are wide distributed insects, the holotype was collected from Bangladesh.

A male of Glanycus insolitus Walker, 1855, photographed by Cuong Do

Velutinodorcus velutinus (Thomson, 1862)

Velutinodorcus velutinus (Thomson, 1862) is wide distributed species but it is not so common species. It was found from Hunan, Gansu China to Vietnam, Laos, Thailand, Myanmar and India. In Vietnam, it were recorded from Tam Dao, Vinh Phuc Province, Mau Son, Lang Son Province and recently it was found from Bidoup National Park, Lam Dong Province. The syntype of the species is deposited in Paris Museum of Nature History, France.
The species is very special in color and structure of surface of body, they are small size stag beetles.

Velutinodorcus velutinus (Thomson, 1862), photographed by Cuong Do

Griseosphinx marchandi Cadiou, 1996

There are 4 known species of Griseosphix and all member of the genus are found in oriental area. The most early described species is Griseosphinx preechari, it was described in 1990 based on materials from Thailand. G. marchandi is second species was new for science in the genus and it was described in 1996, Cadiou published G. marchandi based on a single female holotype that collected from Vietnam. Recently the species was recorded by Le Quynh Trang (Vietnam National Museum of Nature) from Cuc Phuong National Park, Ninh Binh Province. The recently recorded time of the species is April, 2016; it was collected in pristine forest in lowland area of Cuc Phuong. It came to the light trap from 6:00 to 9:00 pm.

Griseosphinx marchandi Cadiou, 1996