First record of the myrmicine ant genus Syllophopsis Santschi, 1915 (Hymenoptera: Formicidae) from India with description of a new species.

Here we describe and illustrate Syllophopsis peetersi sp. nov. from Silent Valley National Park, a biodiversity hotspot region of the Western Ghats of India.

Two new species of (Hymenoptera, Formicidae, Dorylinae) from India with ten-segmented antennae.

Two new species, and , of the ant genus are described from India. These species differ from other known congeners on the basis of number of antennal segments. An illustrated key to the known species based on the worker caste is also provided.

An updated checklist of Nepalese ants (Hymenoptera, Formicidae).

The location of Nepal in the Central Himalaya promotes high habitat and species diversity. Ant diversity is likely high, but there have been few studies of the diversity and distribution of ants in Nepal. Here we present an updated checklist list of Nepalese ants that includes 128 named species in 48 genera and eight subfamilies.

Species composition and elevational distribution of bumble bees (Hymenoptera, Apidae, Latreille) in the East Himalaya, Arunachal Pradesh, India.

The East Himalaya is one of the world's most biodiverse ecosystems. However, very little is known about the abundance and distribution of many plant and animal taxa in this region. Bumble bees are a group of cold-adapted and high elevation insects that fulfil an important ecological and economical function as pollinators of wild and agricultural flowering plants and crops.

Socially-parasitic Myrmica species (Hymenoptera, Formicidae) of Himalaya, with the description of a new species.

A new socially-parasitic species, Myrmica latra sp. n. is described based on a queen and male from Indian Himalaya.

An updated checklist of the ants of India with their specific distributions in Indian states (Hymenoptera, Formicidae).

As one of the 17 megadiverse countries of the world and with four biodiversity hotspots represented in its borders, India is home to an impressive diversity of life forms. However, much work remains to document and catalogue the species of India and their geographic distributions, especially for diverse invertebrate groups. In the present study, a comprehensive and critical list of Indian ant species is provided with up-to-date state-wise distribution.

First verified record of the ant genus Calyptomyrmex (Hymenoptera: Formicidae) from India, along with a revised key to known Indomalayan species.

Background: The members of genus Calyptomyrmex are mostly encountered under rotten logs, in the soil, under stones and in leaf litter samples. These ants are seldom in collections making estimation of their true distributional patterns problematic (Shattuck 2011). The deep antennal scrobes and the unique configuration of the clypeus are distinct to the genus (Bolton 1981).

Taxonomic studies on the ant genus Ponera Latreille, 1804 (Hymenoptera, Formicidae), with the description of a new species from India.

Four species of the ant genus Ponera Latreille, 1804, are recorded from India. The present study reports one new species Ponera sikkimensis sp. n.

Taxonomy and distribution of the ant Cataglyphissetipes (Hymenoptera: Formicidae).

Taxonomy and distribution of the ant species Cataglyphissetipes (Forel, 1894) is herewith detailed. C.setipes is redescribed, based on workers, queens, and males.

First description of the worker caste of Nylanderiasmythiesii (Hymenoptera: Formicidae).

The hitherto unknown worker caste of Nylanderiasmythiesii (Forel, 1894) is described for the first time. Sexuals are redescribed and photomontage images of all castes are provided. A key is presented to separate the six Indian species of Nylanderia.

First description of the male caste of the Himalayan endemic ant Lasiusalienoflavus Bingham, 1903 (Hymenoptera: Formicidae), with re-description of the female and queen castes.

The present paper provides a description of the male caste and re-description of the worker and queen castes of the poorly known ant species Lasiusalienoflavus Bingham, 1903. This species has hitherto been reported only from the Himalayas, and the present data are also based on specimens collected in the north-western part of the mountain range. Likewise other Himalayan ants, this species also shows restricted distribution, which suggests a rather high degree of endemism (45%) of this group in the Himalayas.

A new carpenter ant, Camponotusparabarbatus (Hymenoptera: Formicidae) from India.

A new species of carpenter ant, collected in the Shivalik range of Himalaya is described and illustrated based on the worker and gyne castes under the name Camponotusparabarbatus sp. n. Presence of dense, short setae on gena and ventral surface of head resembles it most to Camponotusbarbatus Roger, 1863 distributed in Southeast Asia.

New synonymy of Proceratium williamsi Tiwari (Hymenoptera, Formicidae).

Proceratium bhutanense De Andrade, 2003, syn. n. is here found to be conspecific with Proceratium williamsi Tiwari, 2000 and accordingly treated as a junior synonym.

Taxonomic studies on the ant genus Cerapachys Smith (Hymenoptera, Formicidae) from India.

The Indianspeciesof the ant genus Cerapachys Smith are keyed. Twelve species are recognized of which 6 are described as new. The species are: Cerapachys aitkenii Forel, Cerapachys alii sp.

Taxonomic studies on genus Tetramorium Mayr (Hymenoptera, Formicidae) with report of two new species and three new records including a tramp species from India with a revised key.

Two new species of Tetramorium Mayr, namely Tetramorium shivalikensesp. n. and Tetramorium triangulatumsp.

Myrmica elmesi (Hymenoptera, Formicidae) a new species from Himalaya.

Myrmica elmesisp. n. is described from Himalaya.