Leptacis Förster, 1856

Awad, Jessica, Krogmann, Lars & Talamas, Elijah, 2023, Taxonomic history and review of the Förster genera of Platygastridae (Hymenoptera: Platygastroidea), European Journal of Taxonomy 875 (1), pp. 1-46 : 16-18

Genus Leptacis Förster, 1856

Figs 10–11

Leptacis Förster, 1856: 107 , 112–113. Type species Ichneumon tipulae Kirby, 1798 by subsequent designation by Ashmead 1893: 270.

Xestonotus Förster, 1856: 107 , 112. Type species Xestonotus andriciphilus Ashmead, 1887 by first subsequent inclusion.

Miramblyaspis Dodd, 1914: 91 . Type species Miramblyaspis mirabilis Dodd, 1914 by monotypy.

Tricholeptacis Kieffer, 1914: 357 . Type species Amblyaspis verticillatus Ashmead, 1894 by monotypy and original designation.

Proleptacis Kieffer, 1926: 632 , figs 254–257. Type species Leptacis foersteri Kieffer, 1914 by original designation.

Prosamblyaspis Kieffer, 1926: 610 , fig. 248. Type species Amblyaspis flavosignatus Kieffer, 1912 by monotypy.

Anacoryphe Debauche, 1947: 274–278 , figs 19–21. Type species Anacoryphe orchymonti Debauche, 1947 by monotypy and original designation.

Mandraka Risbec, 1953: 343 , 344, figs 22, 23, 25. Type species Mandraka pauliani Risbec, 1953 by monotypy.

Xestonotus Förster, 1856 – Ghesquière 1948: 44.

Proleptacis Kieffer, 1926 – Masner 1960: 3.

Mandraka Risbec, 1953 – Masner 1960: 3.

Tricholeptacis Kieffer, 1914 – Masner 1965: 135.

Prosamblyaspis Kieffer, 1926 – Masner 1965: 134.

Miramblyaspis Dodd, 1914 – Huggert 1976: 220.

Anacoryphe Debauche, 1947 – Kozlov 1978: 660, 661.

Remarks

Förster described Leptacis on the basis of a long and pointed mesoscutellar spine, ocular ocellar length (OOL) less than lateral ocellar length (LOL), and four-segmented clava in the female. The type species of Leptacis is Ichneumon tipulae Kirby, 1798 , the type specimen of which is in the NHMUK. The NHMW includes paralectotypes of L. scutellaris Thomson, 1859 and L. torispinula Huggert, 1980 . Huggert (1980) synonymized L. scutellaris with L. tipulae . Vlug (1985) synonymized L. torispinula with L. nydia ( Walker, 1835) .

One specimen of Platygaster spinigera Nees, 1834 (NHMW-HYM#0005297), identified by Förster, rightfully belongs to Leptacis and the label on this specimen is consistent with Nees’s style ( Graham 1988). However, another specimen identified as P. spinigera in NHMW (NHMW-HYM#0005298) belongs to Synopeas . Based on the authenticity of the label, we consider the former specimen to be part of the syntype series and the latter specimen to be misidentified. We here designate NHMW-HYM#0005297 as the lectotype of Platygaster spinigera Nees, 1834 and transfer it to Leptacis .

Figures

Fig. 10. Leptacis spinigera (Nees 1834), lectotype (NHMW-HYM#0005297). A. Dorsal head and mesosoma. B. Lateral habitus. C. Ventrolateral habitus. D. Labels.

Fig. 11. Leptacis tipulae (Kirby, 1789), neotype, ♀ (B.M. TYPE HYM. 9.574). A. Dorsolateral habitus. B. Dorsal habitus. C. Posterodorsal habitus.