-
1 Attachment(s)
-
Hi Dr Seow,
Could you help to shed light on what this Arhopala could be?
Thank you.
https://www.inaturalist.org/observations/189320986
-
Post 112.
https://www.inaturalist.org/observations/189320986
This practically certain to be a female Arhopala milleri.
Note the longer palpi (labial palps) The abdominal end with a longer slant cut.
Compare with a male A. sublustris given below.
Three species recorded in Singapore are very similar & almost impossible to identify correctly.
A. sublustris is the most common
UnF postdiscal band uppermost spot 9 is typically dislocated & shifted inwards on the costal margin.
UnH spot 6 widest at the top & tapers down wards.
Male upperside bright blue, more reflective.
Female with HW brown border wide. FW blue not reaching the tornal margin, brown border being uniformly broad
https://yutaka.it-n.jp/lyc4f/82170010.html
This is likely A. sublustris male.
https://www.inaturalist.org/observations/189202433
See Otsuka L206.
A. milleri.
UnF postdiscal band spot 9 less dislocated ,sometime in line with the rest.
HW spot 6 as in A. sulustris
Male darkisk less reflective blue.
Female UpF blue reaches tornal margin ,HW brownish blue reaches the margin.
https://yutaka.it-n.jp/lyc4f/82160001.html
see Otsuka L207 for female.
A. normani .
UnF spot 9 slightly dislocated.
UnH spot 6 with the side margins straighter.
Male upperside darker blue than A. sublustris.
Female as in A. sublustris.
https://yutaka.it-n.jp/lyc4f/82140001.html
Otsuka L212.
If you don't have Otsuka you can get a free download.
http://www17.plala.or.jp/jamides/Bor.../borneo-e.html
It looks a perfect match.
TL Seow :Cheers.
-
Hi Dr Seow,
could the following skipper be Pelopidas assamensis?
It was way larger than P. mathias and P. agna; roughly 1.5x P. conjuncta with large FW spots.
https://www.inaturalist.org/observations/191449162
Thank you!
-
It is a female Pelopidas conjunctus.
The two larger species differs in that both sexes have a spot in FW space 1b (both sides).
In P agna & mathias, only the female have this spot.
Size reference.
P. mathias FW 16-18mm.
P. agna FW 17-20 mm.
P. assamensis is very large FW 25.5- 26.5 mm.
FW & HW with prominently white spots, large on the FW.
Antenna with a white band that goes nearly all round.
Females
https://www.inaturalist.org/observations/31291038
https://www.nparks.gov.sg/-/media/ff...46f461e50.ashx
Probable male.
https://www.butterflycircle.com/chec...0Ben%20Jin.jpg
Pelopidas conjunctus FW 21.5 to 23.5 mm.
Antenna with a pale area mostly on the underside & not prominent.
UnH spots are white but UnF spots are yellow & large.
Males.
https://www.inaturalist.org/observations/151597347
https://www.inaturalist.org/observations/19877822
Females.
https://2.bp.blogspot.com/-FvDO3Lfw_...lt_Khew_03.jpg
https://www.inaturalist.org/observations/155888799
https://www.inaturalist.org/observations/132122838
Much more common than P. assamensis.
TL Seow: Cheers.
-
Hi Dr. Seow,
Could I check if this skipper could be Zographetus ogygia?
https://www.inaturalist.org/observations/242493174
Thank you!
Sebastian
-
Post 116.
https://www.inaturalist.org/observations/242493174
Yes. This is Zographetus ogygia.
There are two identical species, Z. ogygia & ogygioides.
Only Z. ogygia have been recorded in Singapore.
https://m.singapore.biodiversity.onl...doptera-000428
The difference is in the male.
The male of Z. ogygia have streaks of specialised scales (brands) on the UpF.
The male of Z. ogygioides lacks these specialised scales.
The separation of the females is as Eliot puts it a matter of guesswork.
There is a good pic of a male Z. ogygia which shows these.
If you use google zoom you can see several streaks between the large spot 2 & the cubitus (lower arm of the FW cell), in particular two longer streaks on either side of vein 2 (which appears dark).
https://blogger.googleusercontent.co...gygia-JonS.jpg
https://butterflycircle.blogspot.com...itions-to.html
In Thailand they are called Rusty Flitter & Red Flitter but this does not seem helpful.
https://wingscales.com/Hesperiidae/Zographetus-ogygia
https://wingscales.com/Hesperiidae/Z...tus-ogygioides
In India it is even more complicated.
They are two main forms, both treated as Zographetus ogygia ogygia,ie same taxonomic name as here.
The one in the northeast is roughly similar .
https://www.ifoundbutterflies.org/si...as_as937_0.jpg
The one in south India is quite different, rather like Z. satwa.
https://www.ifoundbutterflies.org/si...doth_ae970.jpg
These probably need revision.
TL Seow: Cheers.
