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 Cerambycidae Cerambycinae
 Xystrocerini
 South Africa: Xystrocera erosa
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Riana
Member Purpuricenus

South Africa
231 Posts

Posted - 02/12/2017 :  12:25:35  Show Profile  Email Poster  Reply with Quote


479.96 KB
Mpumalanga, Presidentsrus
19 Nov. 2017, Light trap
Length 26 mm

Riana
Member Purpuricenus

South Africa
231 Posts

Posted - 02/12/2017 :  12:58:28  Show Profile  Email Poster  Reply with Quote

348.13 KB

I deduce from the original description (Pascoe,1864: 287) that this tends to agree with X. erosa based on the colour of the specimen; median groove on the pronotum; punctation of head & pronotum; concavity of scutellum; and granulation on the elytra; but does not (always) have the three longitudinal raised lines on the elytra ( as in the above example where only two are present). Others have a distinctly darker pronotum. Have also noted that the size is very variable (16 - 38 mm) with a mean average length of 26 - 28 mm based on a series of ~ 40 specimens.

Your diagnoses please.

Edited by - Riana on 02/12/2017 13:20:30
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Francesco
Forum Admin

Luxembourg
8068 Posts

Posted - 19/04/2018 :  20:10:20  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
Nothing to do without types.
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