Moth Taxon Search
Synegiodes diffusifascia-obliquifascia-group
Notes (optional)
Synegiodes obliquifascia Prout, 1918
1) OD : New species and forms of Geometridae, Novitates zoologicae , 25 : 78 - https://www.biodiversitylibrary.org/page/3856879#page/96/mode/1up
2) https://v3.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=535096
3) The Macrolepidoptera of the World, Seitz, Vol 12 pg 152 & Pl 16e
4) Moths of Nepal part 1 , Pl 5/17
5) A review of Synegiodes Swinhoe, 1892, with description of two new species , Cui et al https://zenodo.org/record/5989042
Diagnosis. The species is similar to S. diffusifascia and S. expansus externally. They all have yellowish brown wings and brown transverse bands and are hard to distinguish by external means only. A very clear character among the three species is that S. obliquifascia has two areoles in the forewing venation, but S. diffusifascia and S. expansus have only one. Moreover, the wings are narrower and slightly longer and the transverse lines are more strongly inclined in S. obliquifascia. A further good character of S. obliquifascia is the elongated, black marginal patch between M2 and M 3 in the forewing which is round and indistinct in the other two species.
Similar species –
Synegiodes expansus Cui & Jiang & Stüning & Han 2018 – China, Vietnam (extra-limital) https://zenodo.org/record/5989038
Synegiodes diffusifascia Swinhoe 1892 – Meghalaya
https://zenodo.org/record/5989034
SS: I have struggled to separate Synegiodes obliquifascia and Synegiodes diffusifascia. According to me, the key feature i.e single/double areole is reliable. A further good character of S. obliquifascia is the elongated, black marginal patch between M2 and M 3 in the forewing which is round and indistinct in the other two species: this is not a reliable feature as well. I have individuals with single areole and elongated black marginal patch. Will upload.
I suggest we upload this as Synegiodes diffusifascia-obliquifascia group.
I should also add that I had identified one of these species as Synegiodes obliquifascia, Sondhi et al 2021, Moths of Tale, Image 441 for which we had collected a specimen, and upper side/underside is available, and reviewed by Dieter. But, even then, I was not 100% certain.
JD : In that case, I am fine with Synegiodes diffusifascia-obliquifascia group as opposed to just Synegiodes spp, in order to differentiate from other unidentified Synegiodes observations. This group would also include the extra-limital S. expansus .
SS: Created Synegiodes diffusifascia-obliquifascia-group page. Just needs a second review and publishing.
1) OD : New species and forms of Geometridae, Novitates zoologicae , 25 : 78 - https://www.biodiversitylibrary.org/page/3856879#page/96/mode/1up
2) https://v3.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=535096
3) The Macrolepidoptera of the World, Seitz, Vol 12 pg 152 & Pl 16e
4) Moths of Nepal part 1 , Pl 5/17
5) A review of Synegiodes Swinhoe, 1892, with description of two new species , Cui et al https://zenodo.org/record/5989042
Diagnosis. The species is similar to S. diffusifascia and S. expansus externally. They all have yellowish brown wings and brown transverse bands and are hard to distinguish by external means only. A very clear character among the three species is that S. obliquifascia has two areoles in the forewing venation, but S. diffusifascia and S. expansus have only one. Moreover, the wings are narrower and slightly longer and the transverse lines are more strongly inclined in S. obliquifascia. A further good character of S. obliquifascia is the elongated, black marginal patch between M2 and M 3 in the forewing which is round and indistinct in the other two species.
Similar species –
Synegiodes expansus Cui & Jiang & Stüning & Han 2018 – China, Vietnam (extra-limital) https://zenodo.org/record/5989038
Synegiodes diffusifascia Swinhoe 1892 – Meghalaya
https://zenodo.org/record/5989034
SS: I have struggled to separate Synegiodes obliquifascia and Synegiodes diffusifascia. According to me, the key feature i.e single/double areole is reliable. A further good character of S. obliquifascia is the elongated, black marginal patch between M2 and M 3 in the forewing which is round and indistinct in the other two species: this is not a reliable feature as well. I have individuals with single areole and elongated black marginal patch. Will upload.
I suggest we upload this as Synegiodes diffusifascia-obliquifascia group.
I should also add that I had identified one of these species as Synegiodes obliquifascia, Sondhi et al 2021, Moths of Tale, Image 441 for which we had collected a specimen, and upper side/underside is available, and reviewed by Dieter. But, even then, I was not 100% certain.
JD : In that case, I am fine with Synegiodes diffusifascia-obliquifascia group as opposed to just Synegiodes spp, in order to differentiate from other unidentified Synegiodes observations. This group would also include the extra-limital S. expansus .
SS: Created Synegiodes diffusifascia-obliquifascia-group page. Just needs a second review and publishing.
Observation Reference