Hoplocampa cantoti Chevin, 1986

Liston, Andrew, Prous, Marko & Vårdal, Hege, 2019, A review of West Palaearctic Hoplocampa species, focussing on Sweden (Hymenoptera, Tenthredinidae), Zootaxa 4615 (1), pp. 1-45 : 13-14

Hoplocampa cantoti Chevin, 1986

Hoplocampa cantoti Chevin, 1986: 21–23 . Holotype ♀, not examined, in CBGP. Type locality: France, Eure-et-Loir, forêt de Dreux.

Additional description. Body length: 3.5mm. Clypeus broadly and shallowly emarginate. Female: Scape and pedicel black, underside of flagellum reddish. More or less gena, malar space and supraclypeal area pale (whitish). Metacoxa black with ventro-apical edge pale. Trochanters and femora entirely reddish. Valvula 3 black. The Swiss and Bulgarian specimens have pronotum, tegulae, and abdomen entirely black, whereas in the French specimens [according to original description] tegulae and posterior angles of pronotum are reddish, and underside of abdomen slightly reddish. Lancet: Figs 92–93 . Male: unknown.

Total number of specimens examined: 10.

Similar species. Based on external characters, could be confused with minuta , chrysorrhoea , or fulvicornis : see key. The lancet ( Fig. 92 ) has a highly distinctive shape, among W. Palaearctic species resembling only chrysorrhoea ( Fig. 90 ). As illustrated by Chevin (1986), we found differences between these two species in the gross morphology of the lancets: narrower in chrysorrhoea , and apex curved somewhat upwards in chrysorrhoea , but straight in cantoti .

Life history. Host plants: not known for certain. The Bulgarian specimens were mostly swept from Prunus spinosa , and sometimes from P. domestica growing among these. Chevin (1986) suggested that the host is Prunus mahaleb , which is a characteristic component of the woody vegetation of the two known French localities. Howev- er, Prunus mahaleb was not seen close to the Bulgarian localities, and is not recorded at the Swiss locality (infoflora 2017). Therefore, we suppose that the host is Prunus spinosa .

Distribution. Bulgaria (Varna Province), France (Départements Eure-et-Loire, Indre-et-Loire), Switzerland (Canton Jura).

Occurrence in Sweden: not recorded, and not expected.

Specimens examined. Bulgaria: Varna Province: 1♀ (DEI-GISHym84161), Tsonevo 5km S, 100m, N42.982° E27.451°, 02.iv.2018, leg. Liston & Prous ( SDEI) ; 1♀ (DEI-GISHym88748), Tsonevo 5km S, 100m, N42.982° E27.451°, 03.iv.2018, leg. Liston & Prous ( SDEI) ; 5♀ (DEI-GISHym88769), Dolni Chiflik 2km SE, 50m, N42.983° E27.743°, 05.iv.2018, leg. Liston & Prous ( SDEI) ; 1♀ (DEI-GISHym88854), Dolni Chiflik 2km SE, 50m, N42.983° E27.743°, 13.iv.2018, leg. Liston & Prous ( SDEI) ; 1♀, Tsonevo 5km S, 100m, N42.982° E27.451°, 06.iv.2018, leg. Liston & Prous ( SDEI) . * Switzerland: 1♀ (BC-ZSM-HYM10947), Canton Jura, Gemeinde Montmelon, Les Oeu- ches, 440m asl, + 47.35172°N + 7.16793°E, 22.04.2009, leg. B. Peter ( ZSM) [locality confirmed by the collector: differs slightly from that on label].

Figures

FIGURES 89–93. Lancets: 89, pectoralis (DEI-GISHym83550). 90–91, chrysorrhoea (DEI-GISHym31789) complete, detail of tip. 92–93, cantoti (DEI-GISHym88748), complete, detail of tip.