Lamachus cushmani, Khalaim & Ruíz-Cancino & Coronado-Blanco & Castañeda-Vildуzola, 2019

Khalaim, A. I., Ruíz-Cancino, E., Coronado-Blanco, J. M. & Castañeda-Vildуzola, Á., 2019, First record of the genus Lamachus Förster, 1869 (Hymenoptera: Ctenopelmatinae) from Mexico, with description of two new species, Russian Entomological Journal 28 (2), pp. 169-179 : 178

KEY TO SPECIES OF LAMACHUS OCCURRING IN MEXICO

1. Maxillary and labial palps yellow, sometimes distal palpomere infuscate. Pterostigma brownish black to black. Epicnemial carina present laterally and absent ventrally. First tergite in dorsal view 1.6–1.9 times as long as posteriorly broad. Metasomal tergites uniformly orange, reddish brown or black, without transverse pale bands. Female with body almost entirely orange-brown with scarse yellow and black markings ( Figs 6 , 8–11 ). Male with propodeum completely black .... L. cushmani sp.n.

— Maxillary and labial palps black. Pterostigma brown, sometimes peripherally blackish.Epicnemial carina present laterally and ventrally. First tergite slender, in dorsal view 2.6–2.8 times as long as posteriorly broad. Metasomal tergites black with posterior pale bands dorsally ( Fig. 19 ). Female with body predominantly black with yellow markings ( Figs 12–18 ).Male with propodeum extensively whitemarked posteriorly (as in Fig. 16 ). ......... L. toluca sp.n.

ACKNOWLEDGEMENTS. We are thankful to Dmitri R. Kasparyan (ZISP) for his remarks on the taxonomy of the genus Lamachus . This work was supported by the PRODEP project “Taxonomical and biological studies of pests and natural enemies in Mexico ”. The work of the senior author was also supported by the Russian Foundation for Basic Research (project no. 19-04-00027) and performed in the framework of the Russian State Research Project no. 01201351189.

Figures

Figs 6–7. Lamachus cushmani sp.n. in nature: 6 — female; 7 — male. Рис. 6–7. Lamachus cushmani sp.n. в природе: 6 — самка; 7 — самец.

Figs 8–12. Lamachus cushmani sp.n., female: 8 — head with antennae, lateral view; 9 — head, front view; 10 — body, lateral view; 11 — head, mesosoma and base of metasoma, lateral view; 12 — propodeum and base of metasoma, dorsolateral view. Рис. 8–12. Lamachus cushmani sp.n., самка: 8 — голова с антеннами, сбоку; 9 — голова, спереди; 10 — тело, сбоку; 11 — голова, меЗосома и основание метасомы, сбоку; 12 — проподеум и основание метасомы, сверху и сбоку.

Figs 18–19. Lamachus toluca sp.n., female, holotype: 18 — head, front view; 19 — propodeum and metasoma, lateral view. Рис. 18–19. Lamachus toluca sp.n., самка, голотип: 18 — голова, спереди; 19 — проподеум и метасома, сбоку.

Figs 14–17. Lamachus toluca sp.n., female, holotype: 14 — body and wings, lateral view; 15 — antennae, lateral view; 16 — head and mesosoma, lateral view; 17 — head and mesoscutum, dorsal view. Рис. 14–17. Lamachus toluca sp.n., самка, голотип: 14 — тело и крыльЯ, сбоку; 15 — антенны, сбоку; 16 — голова и меЗосома, сбоку; 17 — голова и меЗоскутум, сверху.