Piyumoides indicus, 2024

Amal, Sreedharan, Girish Kumar, Puthuvayi & Hegde, Vishwanath D., 2024, Discovery of the Oriental genus Piyumoides Leclercq, 1963 (Hymenoptera, Crabronidae) in the Indian subcontinent with the description of a new species, Journal of Insect Biodiversity and Systematics 10 (1), pp. 91-98 : 94-96

Key to species of Piyumoides in the world (modified from Leclercq, 1994)

1 Metasoma either entirely ferruginous or ferruginous with few black patches; occipital carina not reaching hypostomal carina. ............................................................................................................................. 2

— Metasoma black; occipital carina reaching hypostomal carina. ................................................................... 4

2 More yellow markings: clypeus entirely, prothorax, sides of mesoscutum, mesopleuron, and mesosternum (along mesopleural suture), above metapleuron, axilla, scutellum, metanotum and its sides, propodeal enclosure almost entirely; propodeal enclosure with bordering carinae and with distinct long striations. ........................................................................................... P. narcissus Leclercq, 1963

— Fewer yellow parts; mesoscutum, mesopleuron, mesosternum, and propodeum black; propodeal enclosure without bordering carinae, and without distinct basal striae. .................................................... 3

3 All femora black; mandibles almost entirely black ( Fig. 2B); median carina of clypeus complete ( Fig. 2C). ........................................................................................ P. indicus Amal & Girish Kumar sp. nov

— Femora and tibiae of all legs entirely yellow; mandibles entirely ferruginous; median carina evanescent at the apex (see Leclercq, 1994: p. 520, fig. 3). .................................................... P. hewitti ( Cameron, 1908)

4 Scapal basin without lateral carinae (see Leclercq, 1994: p. 520, fig. 4); body with no coarse punctuation. ............................................................................................................ P. jeuniauxi Leclercq, 1994

— Scapal basin with lateral carinae (see Leclercq, 1994: p. 520, fig. 5); punctuation coarse especially on frons, mesoscutum, scutellum, mesopleuron and T1 (see Říha, 2005: p. 245, figs 4). ............................... 5

5 Apical margin of clypeus rounded without a cleft medially (see Řiha, 2005: p. 245, fig. 2); median carina of the clypeus not reaching apical margin (see Řiha, 2005: p. 245, fig. 2); carinae of propodeum stronger (see Říha, 2005: p. 245, figs 3a & 3b). ............................................................. P. becvari Riha, 2005

— Apical margin of clypeus somewhat triangular with a cleft medially (see Leclercq, 1994: p. 520, fig. 5); median carina of the clypeus reaching apical margin (see Leclercq, 1994: p. 520, fig. 5); carinae of propodeum less strong than in alternate (see Leclercq, 1994: p. 520, fig. 8). .. P. turbator Leclercq, 1994