Psyllaephagus malloticolae, Rawat & Kumar, 2023

Rawat, Sangeeta & Kumar, Sandeep, 2023, Psyllaephagus malloticolae sp. nov. (Hymenoptera, Encyrtidae) from India, a parasitoid of leaf gall former, Trioza malloticola (Crawford) (Hemiptera, Triozidae) on Mallotus philippensis, Journal of Insect Biodiversity and Systematics 9 (2), pp. 183-192 : 188-189

Key to the females of some most allied Indian species of Psyllaephagus Ashmead (Modified from Hayat, 2006, and Sudhir & Singh, 2011).

1 Metasoma elongate-triangular, apically pointed ( Fig. 17), with last tergite long, V-shaped; ovipositor usually longer than dorsal length of metasoma, and then in ventral view base of metasoma protruding anteriorly between metacoxae; body generally large, 1.5–3.9 mm. (Males with funiclulars flattened and covered with short setae not more than half width of respective funiclular). .................................................. 2

— Metasoma not as described above, apically rounded, with last tergite broader than long, wide U-shaped, and in ventral view base of metasoma not protruding anteriorly between metacoxae; ovipositor usually shorter than three-quarters dorsal length of metasoma; body generally smaller, 1.2–2.5 mm. (Males with cylindrical funicluars and bearing whorls of long, curly setae longer than width of respective funicluar). .................................................................................................... Psyllaephagus species with U-shape last metasomal tergite [as mentioned in the key provided by Hayat, 2006]

2 At least one pair of coxae dark brown to black. ........................................................................................................ 3

— All coxae pale yellow to white. .......................................................................................................................... 6

3 Hind coxa dark brown, fore and mid coxae pale yellow....... P. macrohomotoma Singh & Agarwal, 1993

— Hind and middle coxae brown, fore coxa pale yellow. ................................................................................. 4

4 Scape slightly expanded mesally but elongate, 4× as long as wide. ..................................................................... ............................................................................................................................... P. phacopteron Sudhir & Singh, 2011

— Scape distinctly expanded mesally, only about 2× as long as wide, funicluars longer than wide. ....... 5

5 Club as long as two preceding segments. ....................................................................... P. malloticolae sp. nov.

— Club distinctly longer than two preceding segments. ................................ P. garuga Sudhir & Singh, 2011

6 F1 clearly shorter than pedicel and F2 both, F1–F2 longer than broad, F6 broader than long; F 1 in dorsal half and F2–6 at least in basal half, brownish, remaining parts of pedicel, funicluars whitish [male antenna]. .............................................................................................................................. P. mycopsyllus Singh, 1996

— F1 subequal in length to pedicel and slightly longer than F2; F1–F6 longer than width, brownish yellow. .................................................................................................... P. phylloplectae Sushil & Khan, 1995