Eguchi, K. 2008. A revision of Northern Vietnamese species of the ant genus Pheidole (Insecta: Hymenoptera: Formicidae: Myrmicinae). Zootaxa1902:1-118.

Northern Vietnamese species of the ant genus Pheidole (Myrmicinae: Pheidolini) were revised, and 31 species including six new species were recognized: capellinii Emery, colpigaleata Eguchi, dugasi Forel, elongicephala sp.n., fervens F. Smith, fervida F. Smith, fortis Eguchi, foveolata Eguchi, gatesi (Wheeler), hongkongensis Wheeler, indosinensis Wheeler stat.n., laevicolor Eguchi, laevithorax sp.n., magna Eguchi, megacephala (Fabricius), noda F. Smith, ochracea sp.n., parva Mayr, pieli Santschi, plagiaria F. Smith, planifrons Santschi, rabo Forel, rugithorax sp.n., smythiesii Forel, taipoana Wheeler, tjibodana Forel, tumida sp.n., vieti sp.n., vulgaris Eguchi, yeensis Forel, zoceana Santschi. The following cases of synonymy were resolved: Myrmica agilis F. Smith as a junior synonym of Pheidole megacephala; Pheidole rhombinoda var. stella Forel, P. rhombinoda var. formosensis Forel, P. rhombinoda var. taprobanae Forel, and P. nodus var. flebilis Santschi as junior synonyms of P. noda; Pheidole peguensis r. yomensis as a junior synonym of P. plagiaria; and Pheidole smythiesii var. bengalensis Forel and P. bhavanae Bingham as junior synonyms of P. smythiesii. The lectotype was designated for the following species: Pheidole dugasi, P. rhombinoda var. stella, P. peguensis r. yomensis and P. sulcaticeps r. yeensis. A key to N. Vietnamese species of Pheidole based on the worker caste is given.
Acknowledgements After I arrived at Noi Bai International Airport on a cloudy day in November 1999, nine years slipped by. I, as a myrmecologist, have expended enormous efforts and spiritual force to conduct my research activities in Vietnam. My specimen boxes contain not only numerous specimens but also precious memories of my life in Vietnam. I wish to thank my friend Dr. Bui Tuan Viet who always accept a brash young Japanese. I am also thankful to foresters at the remote field stations and people in local villages. They always welcome me and provide facilities for my successful and happy days. They are indispensable contributors to my project. On 15th October 2008, I would dedicate this publication to Vietnam and people living there, with all my heart.


謝辞   1999年11月,曇天のノイバイ空港に降り立ってから瞬く間に9年が過ぎました.アリ学者としてかなりの体力と精神力をベトナムでの活動に費やしてきました.私の標本箱の中には膨大な数と標本とともにベトナムでの喜怒哀楽,様々な思い出が詰まっています.生意気な若造をいつも寛大な心で受け入れてくれるヴィエットさん,ありがとう!いつも私をもてなし,楽しませてくれる、営林署員の皆さん,村の皆さん,ありがとう!2008年10月15日,私が愛して止まないベトナムとそこに暮らす人々へ心からの感謝を込めて.

Eguchi, K., Bui, T.V. & Yamane, Sk. 2008. Vietnamese species of the genus Acanthomyrmex EMERY, 1893 – A. humilis sp.n. and A. glabfemoralis ZHOU& ZHENG, 1997 (Hymenoptera: Formicidae: Myrmicinae). Myrmecological News 11: 231–241, Vienna, August 2008.

Two species of the ant genus Acanthomyrmex EMERY, 1893 are recognized from Vietnam. Acanthomyrmex humilis sp.n. is described based on the major worker, minor worker and ergatoid queen. The major worker, queen, "dwarf queen", and male of A. glabfemoralis ZHOU & ZHENG, 1997 are also described for the first time, and the minor worker of this species is redescribed. Notes on the colony structure are given.

邦題:ベトナムに産するナミバラアリ属(膜翅目:アリ科:フタフシアリ亜科)━ Acanthomyrmex humilis 新種およびA. glabfemoralis ZHOU& ZHENG, 1997

ナミバラアリ属(Acanthomyrmex EMERY)に属するアリ2種をベトナムから確認した.そのうち1種を大型働きアリ,小型働きアリそして職蟻型女王アリの形態的特長に依拠して新種Acanthomyrmex humilisとして記載した.さらにA. glabfemoralis ZHOU & ZHENG, 1997の大型働きアリ,女王アリ,矮小女王アリそして雄アリを始めて記載し,小型働きアリを再記載した.コロニー構造についての新知見もあわせて提供した.

Yamane, Sk., Bui, T.V. & Eguchi, K. 2008. Opamyrma hungvuong, a new genus and species of ant related to Apomyrma (Hymenoptera: Formicidae: Amblyoponinae). Zootaxa 1767: 55–63

The amblyoponine genus Opamyrma is newly established for a single new species, O. hungvuong, found from central Vietnam. The genus is morphologically very close to the genus Apomyrma known from the Afrotropical region, but is well distinguished from the latter by a combination of the following features in the worker of the former: preoccipital carina complete, almost encircling the head slightly before its posterior margin; clypeus posteriorly margined with a distinct continuous carina; petiole without a distinct anterior peduncle; abdominal segment III longer than IV, V and VI; segment VII longest among the segments III-VII; anteriormost part of abdominal sternite III produced anteriad to the same level as the anteriormost part of the tergite III; abdominal segment IV with differentiated presternite. The new genus is tentatively assigned to the subfamily Amblyoponinae.

Eguchi, K. & Bui, T.V. 2007. Ecological notes on a plant ant, Cladomyrma scopulosa Eguchi & Bui (Hymenoptera, Formicidae, Formicinae) associating with a tree species Saraca dives Pierre (Leguminosae). Asian Myrmecology, 1: 51–58.

In north and north-central Vietnam colony structure and other aspects of biology of Cladomyrma scopulosa Eguchi & Bui associating with a tree species Saraca dives Pierre were recorded. Within the genus Cladomyrma a colony structure with multiple dealate queens has been seen almost exclusively in C. scopulosa. Our limited observations suggest that secondary polygyny at the early founding stage, or even primary polygyny, often occur in C. scopulosa. The colony may become progressively more polygynous by accepting supplementary queens. Genetic relatedness among dealate queens, however, was not estimated in the present study.

Eguchi, K., Yamane, Sk. & Zhou, S.Y. 2007. Taxonomic revision of the Pheidole rinae Emery complex. Sociobiology, 50: 257–284.

Five species are recognized among infraspecific taxa of Pheidole rinae Emery: P. rinae Emery, P. hongkongensis Wheeler, P. parva Mayr (senior synonym of P. parva var. decanica Forel, P. rinae var. mala Forel, P. rinae race tipuna Forel and P. sauteri Wheeler), P. pieli Santschi (senior synonym of P. rinae subsp. incensa Wheeler), and P. taipoana Wheeler. Pheidole nodgii var. zoceana Santschi is raised to species level; it seems to be closely related to P. parva and P. rabo Forel but not to the P. nodgii group. P. tsailuni Wheeler is a junior synonym of P. rabo.

邦題:Pheidole rinae Emery種群の分類学的再検討

Pheidole rinae Emeryの種内分類を再検討した結果,以下の5種が認識された:P. rinae Emery, P. hongkongensis Wheeler, P. parva Mayr (P. parva var. decanica Forel,P. rinae var. mala Forel,P. rinae race tipuna Forelそして P. sauteri Wheelerの古参シノニム),P. pieli Santschi (P. rinae subsp. incensa Wheelerの古参シノニム)そして P. taipoana Wheeler.Pheidole nodgii var. zoceana Santschiは種へ格上げされた.本種はnodgii種群ではなくP. parvaやP. raboに近縁であると思われる.P. tsailuni WheelerはP. raboの新参シノニムである.

Eguchi, K. & Bui, T.V. 2007. Parvimyrma gen. nov. belonging to the Solenopsis genus group from Vietnam (Hymenoptera: Formicidae: Myrmicinae: Solenopsidini). Zootaxa 1461: 39–47.

The myrmicine ant genus Parvimyrma is newly established for a single new species found from N. Vietnam. The genus is undoubtedly placed in the Solenopsis genus group, and it is distinguished from the other genera belonging to the genus group by a combination of the following features: posteromedian portion of clypeus narrowly inserted between frontal lobes; masticatory margin of mandible with 5 distinct teeth; antenna 11-segmented, with a 2-segmented club; eye completely absent; promesonotum in profile almost flat or very weakly convex dorsally; metanotal groove relatively shallowly impressed dorsally; propodeum unarmed; propodeal spiracle small, situated a little behind the midlength of the sides of propodeum; metapleural gland large; petiolar peduncle with a small anteroventral process; postpetiole narrowly attached to the anteriormost end of gaster; sting poorly developed.



Eguchi, K., Yoshimura, M. & Yamane, Sk. 2006. The Oriental species of the ant genus Probolomyrmex (Insecta: Hymenoptera: Formicidae: Proceratiinae). Zootaxa, 1376: 1–35.

Ten species of the proceratiine ant genus Probolomyrmex are recognized in the Oriental Region: bidens Brown, dammermani Wheeler, itoi sp. nov., longinodus Terayama et Ogata, longiscapus Xu et Zeng, maryatiae sp. nov., okinawensis Terayama et Ogata, procne Brown, vieti sp. nov. and watanabei Tanaka. The ten species and two Australian species can be classified into two species groups. The longinodus group is characterized by the petiole which is clearly longer than high, and subpetiolar process which is low with poorly developed posteroventral portion. The greavesi group is characterized by the petiole which is at most a little longer than high, and subpetiolar process which is developed and somewhat rectangular. Males of dammermani and longiscapus, and queens of dammermani, longinodus, longiscapus and watanabei were described for the first time. A key to the Oriental species of the genus is also given.


カギバラアリ族ハナナガアリ属の東洋区に産する種を分類学的に再検討した結果,以下の10種が東洋区から確認された.それらは,bidens Brown,dammermani Wheeler,itoi新種,ホソハナナガアリTerayama et Ogata,longiscapus Xu et Zeng,maryatiae新種,ハナナガアリTerayama et Ogata,procne Brown,vieti新種そして watanabei Tanakaである.それら10種とオーストラリア区に産する2種は2つの種群に大別できる.ホソハナナガアリ種群は腹柄節が長い(高さよりも明らかに長い),腹柄節下部突起が低く,その後部の発達が悪いといった形態的特徴を持つ.他方,greavesi種群は腹柄節が短い(せいぜい高さよりもわずかに長い程度),腹柄節下部突起が発達し,多少とも四角くなるといった形態的特徴を持つ.本研究により初めてdammermani及びlongiscapusの雄,dammermanilonginoduslongiscapus,及びwatanabeiの女王が記載された.また,東洋区の種の検索表が提示された.

Eguchi, K., Hashimoto, Y. & Malsch, A.K.F. 2006. Pheidole schoedli sp.n. (Hymenoptera: Formicidae), a subterranean species found from North Borneo. Myrmecologische Nachrichten, 8: 31–34.

Pheidole schoedli sp. n. is described from N. Borneo. The present species seems to be closely related to Pheidole parvicorpus Eguchi, 2001, but is distinguished well from the latter in having the head of the major covered with two types of hairs, the antennal segment X of the major and minor longer than its width, and other morphological characteristics of the antennal scapes, eyes, and gaster. The species is considered a subterranean ant because (1) the specimens were found in soil samples but not in the litter samples; (2) eyes are extremely reduced and body color is yellowish. Thus, this species and P. parvicorpus, which is also presumably subterranean, are ecologically unique among Bornean Pheidole species.

邦題:ボルネオ北部から見つかった地中性のアリの新種Pheidole schoedli

オオズアリ属の新種,Pheidole schoedli,をボルネオ北部から記載した.本種はPheidole parvicorpusと近縁であると思われるが,大型働きアリの頭部が2タイプの毛により覆われること,触角第10節が幅よりも長いこと,そのほか触角柄節,複眼そして膨腹部の形態的特徴により,Pheidole parvicorpusからは明確に区別される.標本が土壌サンプルのみから得られていることや目が著しく縮小し,体色が黄色を呈することから,本種は土中生活者であると考えられる.従って,本種及び同じく土中生活者と考えられているPheidole parvicorpusは,ボルネオに生息するオオズアリ類の中では生態的に興味深い種である.

Eguchi, K. & Bui, T.V. 2006. Cladomyrma scopulosa new species (Hymenoptera: Formicidae: Formicinae) from Vietnam. Sociobiology, 47: 305–314.

Eguchi, K. 2006. Six new species of Pheidole Westwood from North Vietnam (Insecta, Hymenoptera, Formicidae). Revue Suisse de Zoologie 113: 115–131.

Eguchi, K. 2006. A story of a man crazy about imaging ant specimens. ANeT Newsletter, No. 9: 4–10 [http://homepage.mac.com/dorylus/newsletter.html].

Iwata, K., Eguchi, K. & Yamane, Sk. 2005. A case study on urban ant fauna of southern Kyushu, Japan, with notes on a new monitoring protocol (Insecta, Hymenoptera, Formicidae). Journal of Asia-Pacific Entomology, 8: 263–272.

Eguchi, K. & Bui, T.V. 2005. A New South Vietnamese species of the genus Pheidole with a truncated head in the major and queen (Insecta, Hymenoptera, Formicidae). Sociobiology, 45: 721–730.

Eguchi, K., Bui, T. V. & Janssen, R. 2005. Gastropod guests (Prosobranchia: Pupinidae, and Pulmonata: Subulinidae) associated with the ponerine ant Diacamma sculpturatum complex (Insecta: Hymenoptera: Formicidae). Sociobiology 45: 307–315.

Eguchi, K., Bui, T. V., Yamane, Sk., Okido, H. & Ogata, K., 2005. Ant fauna of Ba Vi and Tam Dao, N. Vietnam (Insecta: Hymenoptera: Formicidae). Bulletin of the Institute of Tropical Agriculture, Kyushu University 27: 77–98.

Eguchi, K., Bui, T. V. & Yamane, Sk. 2004. A preliminary study on foraging distance and nesting sites of ants in Indo-Chinese lowland vegetation (Insecta, Hymenoptera, Formicidae). Sociobiology 43: 445–457.

Eguchi, K. 2004. Taxonomic revision of two wide-ranging Asian ants, Pheidole fervens and P. indica, and related species (Hymenoptera, Formicidae, Myrmicinae). Annalen des Naturhistorischen Museums in Wien, 105B: 189–209.

Eguchi, K. 2003. A study on the male genitalia of some Asian species of Pheidole (Hymenoptera, Formicidae, Myrmicinae). Sociobiology, 41: 317–355.

Eguchi, K. & Yamane Sk. 2003. Species diversity of ants in a lowland rainforest, Brunei, Northwestern Borneo (Hymenoptera, Formicidae). New Entomologist, 52:49–59.

Bui, T. V. & Eguchi, K. 2003. Ant Survey in Hoang Lien Son Nature Reserve, Lao Cai, N. Vietnam. ANeT Newsletter, 5: 4–11.

Yamane, Sk., Bui, T. V., Ogata, K., Ôkido, H. & Eguchi, K. 2003. Ant fauna of Cuc Phuong National Park, North Vietnam (Hymenoptera: Formicidae). Bulletin of the Institute of Tropical Agriculture, Kyushu University, 25 (2002): 51–62.

Eguchi, K. 2001. A revision of the Bornean species of the ant genus Pheidole (Insecta: Hypenoptera: Formicidae: Myrmicinae). Tropics Monograph Series, No. 2: 1–154.

Eguchi, K. 2001. A taxonomic study on Asian Pheidole (Hymenoptera, Formicidae): new synonymy, rank changes, lectotype designations and redescriptions.

Ito, F., Yamane, Sk., Eguchi, K., Woro A. Noerdjito, Shi Kahono, Tsuji, K., Ohkawara, K., Yamauchi, K., Nishida, T. & Nakamura, K. 2001. Ant species diversity in the Bogor Botanic Garden, West Java, Indonesia, with descriptions of two new species of the genus Leptanilla (Hymenoptera, Formicidae). Tropics, 10: 379–404.

Eguchi, K. 2000. Two new Pheidole species with a 5-segmented antennal club (Hymenoptera: Formicidae). Entomological Science, 3: 687–692.

Eguchi, K. 1999. Pheidole longipes (Fr. Smith) and two new closely related species from Kinabalu Park, Sabah, Borneo (Hymenoptera, Formicidae). Japanese Journal of Systematic Entomology, 5: 97–104.

Eguchi, K. 1998. A new ant of the genus Metapone (Hymenoptera: Formicidae) from Sabah, Borneo. Entomological Science, 1: 605–609.