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Hello all,

To help anyone with identifying Xanthogramma's heres my translation translation of van Steenis et.al. 2014. (I know, its not the best, but hope it helps)

Kind regards,

Ectemnius


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1a. Microtrichia on the mebranes between tergite en sternite iii and iv all yellow (fig. 3,5 ). Thorax laterally with four bright yellow spots (fig. 9). The points of the spots (pointing to the middle of the tergite) on tergite ii pointed or rounded. (fig. 6, 7). Dark spot behind the wing stigma expanding to maximally 1,25 celwidth (fig. 13 voor X. stackelbergi). Hairs on the edge of the lower calypter variable. Male: Spots on tergite ii variable (fig. 6, 7). Female: black stripe on frons variable (fig. 10, 11) -> 2

1b. Microtrichia on the mebranes between tergite en sternite iii and iv partly black (fig. 4).
Thorax laterally never with four large yellow spots, often with one or two (fig. 8). If three or four spots are present than minimally anterior or posterior spot vage or reduced. The points of the spots (pointing to the middle of the tergite) on tergite ii sharp (fig. 6). Dark spot behind the wing stigma expanded to 1,3 celwidth or more (fig. 12). Hairs on edge of lower calypter brown. Male: Spots on tergite ii go across full width over the side of the tergite (fig. 6). Female: black stripe on frons connected to vertex. Anteriorly broadened and fully connected with lunula. (fig. 10). -> Xanthogramma pedissequum

2a. Inside of spots on tergite two rounded(fig. 7); the yellow spot on tergite two not connected with the edge of the tergite across entire width (fig. 7). Hairs on the edge of the lower calypter and plumula yellow. Dark spot behind the wing stigma limited to celwidth (fig. 13). The cel below (nearly) entirely hyaline. Wing tip: hyaline.
Male: anterior edge of black band on sternite ii sharply pointing forward (fig. 5). Female: Black stripe on frons not reaching vertex or with a very small line connected with vertex. Towards lunula narrowed or at most not widening. (fig. 10) ->
Xanthogramma stackelbergi

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