 1 Mesoscutum without distinctly differentiated adnotaular region, the region lateral to notaulus posteriorly similarly punctate-reticulate as lateral and medial lobes posteriorly (A, B) …Chalcedectus balachowskyi Steffan
 - Mesoscutum with distinct, obliquely carinate adnotaular region (a, b) …2
 2(1) Female …3
 - Male …5
 3(2) Legs with knees pale (femora apically and tibiae basally or subapically) and tibiae or at least pro- and mesotibiae variably conspicuously banded (dark-pale-dark) (A,B) …Chalcedectus tankwa van Noort & Mitroiu, 2026.
 - Legs with knees dark (femora apically and tibiae basally similarly dark) and tibiae entirely dark or variably extensively pale apically but not banded (a,b) …4
 4(3) Gaster with Gt4 and/or Gt5 usually punctate-reticulate (A), though small females sometimes with Gt5 coarsely reticulate with comparatively large reticulations (B); tibiae sometimes pale apically (Fig. 3B,C) …Chalcedectus copelandi Gibson & van Noort and Gibson, 2026.
 - Gaster with Gt4 and Gt5 mesh like coriaceous-reticulate to reticulate (a, b); tibiae entirely dark (Fig. 57A,C) …Chalcedectus sinaiticus (Masi)
 5(2) Head and mesothorax usually with quite distinct green to blue lustre and/or head with darker transverse band between eyes above scrobal depression and sometimes variably distinct sublateral dark bands extending dorsally on either side of median ocellus (A, B, C); legs sometimes with one or more femora apically pale (B) and sometimes one or more tibiae also paler, orangish mesally (B); labial and maxillary palps often yellowish to brownish-yellow and distinctively elongate (B); antenna sometimes with some funiculars variably distinctly pale (A) …Chalcedectus tankwa van Noort & Mitroiu, 2026.
 - Head and mesothorax black, without metallic lustre or at most dark bluish-black (a, b, c) and never with contrasting facial bands (a); legs entirely dark, including knees (b); labial and maxillary palps at least dark brown and not distinctively elongate (b); antenna dark (a) …Chalcedectus sinaiticus (Masi) or Chalcedectus copelandi Gibson & van Noort, 2026.
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