Gastrotrypes, Brues, 1922, Brues, 1922

Sunita, Patra, Rajmohana, Keloth, Manoj, Kandoth & Anjana, Madathil, 2022, Two New Species Of The Rare Genus Gastrotrypes Brues (Hymenoptera: Platygastridae) From India, Acta Zoologica Academiae Scientiarum Hungaricae 68 (3), pp. 239-246 : 244-245

KEY TO WORLD SPECIES OF GASTROTRYPES BASED ON FEMALES (modified from ANJANA et al. 2016)

1 T5 distinctly elongate, more than 5× as long as wide 2

– T5 as long as or longer than wide, but less than 5× 3

2 A3 twice as long as wide; forewing with distinct marginal fringe at apical margin G. caudatus Brues

– A3 as long as wide; forewing without distinct marginal fringe at apical margin G. longicaudatus Veenakumari et Buhl

3 Metasoma with 6 visible tergites G. malaysianus Buhl

– Metasoma with 5 visible tergites 4

4 T2 without any basal striations; T3 with scattered punctae G. spatulatus Brues

– T2 at extreme base with a few short basal striations; T3 only with a row of transverse setose, punctae towards base 5

5 A7–A9 elongate, at least 2× as long as wide 6

– A7–A9 not elongate, not more than 1.5× as long as wide 7

6 Frons smooth; OOL> OD G. keralaensis Anjana et Rajmohana

– Frons reticulate coriaceous; OOL <OD G. vindhyensis Mukerjee

7 T1 with a distinct median carina and adpressed lateral grooves G. carinatus Sunita et Rajmohana sp. n.

– T1 sculpture not as above, median carina lacking 8

8 Frons, gena and vertex smooth; hyperoccipital carina distinct G. manii Veenakumari et Buhl

– Frons finely reticulate; hyperoccipital carina absent G. brevis Sunita et Rajmohana sp. n.