Empria alpina Benson, 1938

Prous, Marko, Heidemaa, Mikk & Soon, Villu, 2011, Empria longicornis species group: taxonomic revision with notes on phylogeny and ecology (Hymenoptera, Tenthredinidae), Zootaxa 2756, pp. 1-39 : 22

Empria alpina Benson, 1938

Empria alpina Benson, 1938: 190 –191. Type locality: Scotland, Perthshire, Breadalbane Mountains, Crags above Lochan à Lairige [ UK]. Holotype Ψ, BMNH [not examined, see Notes].

Host plants. Dryas octopetala (Veli Vikberg, personal communication).

Distribution. Holarctic (no Nearctic specimens were studied). The verified country records are: Finland, Germany, Great Britain, Italy, and Switzerland.

Key characters. Paired patches on abdominal terga 2–6 (7) unpigmented; tegulae, posterior margin of pronotum, and metatibia mostly black. Ratio of flagellum length to head breadth in females 1.6–2.1, in males 2.7–3.5, and eye length to head length 1.3–1.5. Number of serrulae 14, conspicuously papilliform ( Fig. 36 ). Valviceps with a long basal lobe, forming very deep notch between valviceps and valvura ( Fig. 53 ).

Notes. Taxonomic identity is evident from the original description (e.g. fig 7a in Benson, 1938), but confirmed also by studying three paratypes (1 Ψ and 1 ɗ with same collecting data as holotype).

Figures

FIGURES 36 – 39. Lancets (valvulae 1) / lancet (valvula 1) and lance (valvula 2) of Empria longicornis group: 36, E. alpina, lancet; 37, E. mongolica, lancet; 38, E. minuta, lancet; 39, E. loktini (holotype), lancet and lance.

FIGURES 53 – 58. Penis valves of Empria longicornis group: 53, E. alpina; 54, E. mongolica; 55, E. loktini (paratype); 56, E. alector (specimen h- 32); 57, E. tridens (specimen 08 - 12); 58, E. minuta.