Isotomidae Borner, 1913

Mandal, G. P., Suman, K. K. & Bhattacharya, K. K., 2017, Five new species of Collembola (Isotomidae) from Jharkhand, India, Records of the Zoological Survey of India 117 (2), pp. 97-112 : 98

Family Isotomidae Borner, 1913

This family includes Arthopleona with distinct antennal segments, mouth parts with well-developed mandibular molar plate, pronotum reduced without setae and with a post antennal organ of a single tubercle. Unguis with a single inner margin. Abdominal segments III and IV similar in length lacking scales or ‘flexed’ setae.

Subfamily Anurophorinae Borner, 1913

Genus Proisotoma Borner, 1901

1901. Proisotoma Börner, Abh. Nat. Wiss.Ver.Bremen 17: 1-40

Type species: Isotoma minuta Tullberg, 1871 Borner(1901) erected the genus Proisotoma , based on these characters: Furcula present. Mucro with 2 or more teeth. Fourth and fifth abdominal segments at least separated by a nonsetaceous band. Post antennal organ present. Ventral manubrial setae 6 or fewer. Hind femur without spur. Mucro distinctly separated from dens. At least 5+5 eyes present.

So far, a total of 77 species in this genus are known from the world (Bellinger et al, 2016). From India, three species of Proisotoma are known ( Mandal, 2010). Proisotoma himalayana Baijal, 1958 and Proisotoma senetijohani Baijal and Chandra, 1970 is found to be endemic to India. A checklist of Indian species, of Proisotoma as reference to their distribution in India and the World is provided.

1. Proisotoma himalayana Baijal, 1958 . It was recorded from Himachal Pradesh, Jammu and Kashmir of India .

2. Proisotoma senetijohani Baijal and Chandra, 1970 . It was recorded from Uttar Pradesh of India.

3. Proisotoma minuta ( Tullberg, 1871) . It was recorded from Maharashtra, Kerala of India. Elsewhere: COSMOPOLITAN