Lestica alata (Panzer, 1797)

Stetsun, Halyna, 2021, Superimposition of the sting morphological characters on the dendrogram of Apoidea with emphasis on Crabronidae s. str. (Insecta: Hymenoptera): first steps, Journal of Natural History 54 (31 - 32), pp. 1957-1972 : 1959

Lestica alata ( Figure 2 )

The lateral parts of tergite 9 are not connected with the sclerotised bridge ( Figure 2a ) and bear the membranous incision posteromedially ( Figure 2b ). The 2nd valvula is curved ventrally ( Figure 2d ). The lateral surface of the 1st valvula is smooth ( Figure 2j ). The valvillus comprises only a single flap ( Figure 2i ). The 1st valvula does not form the ventral process basally ( Figure 2h ). No trichoid sensilla were found on the rostral process ( Figure 2e ). In this species, the 3rd valvula is also divided into proximal and distal lobe with a membrane ( Figure 2f ). The apical-cone-shaped process of the 3rd valvula is small ( Figure 2g ). The dorsal arm of furcula is very short ( Figure 2c ).

Figures

Figure 2. Sting parts of Lestica alata. (a) – lateral parts of tergite 9, dorsal view; (b) – lateral sclerite of tergite 9, medial view; (c) – furcula, lateral view; (d) – 2nd valvula, lateral view; (e) – the 2nd ramus, fused with the rostral process of the 2nd valvifer, laterofrontal view; (f) – the 3rd valvula, lateral view; (g) – apical cone-shaped process of the 3rd valvula, laterodorsal view; (h) – the 1st valvula+1st ramus +1st valvifer, medial view; I–valvillus, medial view; (j) – the 1st and 2nd valvulae, lateral view. A, C, D – LM; B, E-J – SEM. Arrowheads indicate regions of interest.Scale bars: 200 µm in A and D; 100 µm – in B, F, H; 50 µm – in C; 20 µm – in E, G, I, J. l – lateral direction; p – posterior direction; v–ventral direction.