Some Curetinae need ID

[Alan Yip]

1. KL, Malaysia
Curetis regula?

https://c3.staticflickr.com/1/478/31470414746_b63cb0103c_b.jpg (https://flic.kr/p/PWW6TG)帝王银灰蝶 20160207 DSC_5795 (https://flic.kr/p/PWW6TG) by Alan Yip (https://www.flickr.com/photos/alanyip3/), 於 Flickr

2.Chiangmai, Thailand
Curetis santana?

https://c8.staticflickr.com/1/30/30698945943_8ac59f291e_b.jpg (https://flic.kr/p/NLL86r)The Malayan Sunbeam 圣银灰蝶 (https://flic.kr/p/NLL86r) by Alan Yip (https://www.flickr.com/photos/alanyip3/), 於 Flickr

https://c5.staticflickr.com/1/192/31470418116_d428edb838_b.jpg (https://flic.kr/p/PWW7TN)The Malayan Sunbeam 圣银灰蝶 (https://flic.kr/p/PWW7TN) by Alan Yip (https://www.flickr.com/photos/alanyip3/), 於 Flickr

3. Chiangmai, Thailand
Curetis santana? C. acuta?

https://c6.staticflickr.com/6/5599/30698949093_922ce5d95d_b.jpg (https://flic.kr/p/NLL92K)齿银灰蝶 20160330 DSC_6571 (https://flic.kr/p/NLL92K) by Alan Yip (https://www.flickr.com/photos/alanyip3/), 於 Flickr

4. Gopeng, Malaysia
Curetis bulis?

https://c5.staticflickr.com/1/5/31137097300_770a6e332a_b.jpg (https://flic.kr/p/PrtLeb)20160719 DSC_3887 (https://flic.kr/p/PrtLeb) by Alan Yip (https://www.flickr.com/photos/alanyip3/), 於 Flickr

5. Chiangmai, Thailand
Curetis sperthis?

https://c7.staticflickr.com/1/551/30667638214_edc4f97038_b.jpg (https://flic.kr/p/NHZEp1)20160330 DSC_6590_01 (https://flic.kr/p/NHZEp1) by Alan Yip (https://www.flickr.com/photos/alanyip3/), 於 Flickr

6. Gopeng, Malaysia
Curetis sperthis?

https://c3.staticflickr.com/1/556/31470475106_8627bb239e_b.jpg (https://flic.kr/p/PWWpQo)20160716 DSC_2530 (https://flic.kr/p/PWWpQo) by Alan Yip (https://www.flickr.com/photos/alanyip3/), 於 Flickr

7. Phuket Thailand
Curetis santana? Curetis bulis?

https://c6.staticflickr.com/1/494/31392610501_0ae637d541_b.jpg (https://flic.kr/p/PQ4kpc)20150424 DSC_1326 (https://flic.kr/p/PQ4kpc) by Alan Yip (https://www.flickr.com/photos/alanyip3/), 於 Flickr

[Psyche]

The Sunbeams can be very difficult.

1. Should be C. tagalica jopa.
Three species can be very similar as the degree of indentation of the HW band varies.Note always shallow in C. regula.
The deep indentation in space 1b at the lower part of the band indicate it is not C. regula.

C. saromis .Legs banded red /orange or red brown.
Male C. saronis sumatrana Singapore.
http://1.bp.blogspot.com/-YjzoWBJ7Y2Q/UKeAiD6nsGI/AAAAAAAAImA/YvM-RVVk4i8/s1600/SumatranSunbeamM-KSK.jpg

C. tagalica ;Legs banded black/dark brown.
Malaya.males.
http://4.bp.blogspot.com/-SjFTuBaYkRY/Vfq300spc8I/AAAAAAAAWlw/2j7iXWr1bHk/s1600/DSC_0013.JPG
http://m0.i.pbase.com/g1/25/686825/2/130066950.FnskJI53.jpg

C. regula; Legs banded black ?Bands always heavily shaded.
http://m0.i.pbase.com/g4/25/686825/2/132681840.QXkig9Dl.jpg
http://3.bp.blogspot.com/-TjMzTzV8WCM/VSKmi8ALwCI/AAAAAAAAUx4/v5gM78bgO84/s1600/DSC_0121-001.JPG
http://4.bp.blogspot.com/-IURO3HRi9kY/VKcwfM0eVOI/AAAAAAAATDI/e90Y2aS59WQ/s1600/DSC_0273.JPG

2. The upperside immediately ID'ed it as C. acuta dentata.Note the black dentate (tooth) mark.
On the underside the postdiscal band in space 7, & 6 almost join the cellend & continues downwards.(variable)
Dsf with very sharply acute FWs& angular HWs.

3.C. acuta dentata .The winshape esp HW indicate either bulis or acuta.
The sharper FW apex & deeper HW termen excavation with wavy margin

C. acuta dentata. wsf & dsf. Note postdiscal spot 6 not tuck under spot 7, being aligned with it.
http://1.bp.blogspot.com/-V1hJc3kzo5I/VTzls-jJqaI/AAAAAAAARRM/KOSBXh86GYQ/s1600/HFH_9229%2BAngled%2BSunbeam.jpg
http://3.bp.blogspot.com/-U-AIzwUajCw/Un9RDmjsbcI/AAAAAAAAMbc/mFj0a47irQY/s1600/HFH8501+Curetis+acuta+dentata+(The+Angled+Sunbeam) .jpg

C. bulis bulis Thailand. Note spot 6 is very small & tuck further in under spot 7. ;submarginal spots 6 & 7 in line.
http://wingscales.com/content/record/172-1-cde3f.jpg

C. bulis stigmata Malaya.
http://i.pbase.com/g4/25/686825/2/136052370.gepN0ViL.jpg

4. C. santana malayica. Note postdiscal spots 6 & 7 aligned in a straight line; submarginal spots 6 & 7 out of line.
C. santana malayica Singapore.
http://1.bp.blogspot.com/-0ICztPUghRQ/TezJrJqaIMI/AAAAAAAALFo/e0n7DK9mzZ8/s1600/Malayan_Sunbeam_adult_male_female_01.jpg

C. felderi.HW spot 6 inside of spot 7; submarginal spots 6 & 7 out of line; palpi white & unspotted.
http://smg.photobucket.com/user/federickho/media/Langkawi%207%20-%2011%20Dec%2013/HFH_0504Curetisbulisstigmata_zps369164e8.jpg.html

5. C. acuta dentata ;Note wingshape & spot arrangement.

6. Curetis santana malayica. Note Postdiscal spots 6 & 7 aligned & submarginals 6 & 7 out of line.

C. sperthis sperthis.FW band prallel to the outer margin ;HW spots as in santana.
http://m2.i.pbase.com/g1/25/686825/2/146357532.4BHSMFVB.jpg
http://www.samuibutterflies.com/02_images/travels/largerphotos/curetissperthis.jpg

7 C. bulis stigmata.


TL Seow: Cheers.

[Alan Yip]

Very difficult indeed, thanks for the detail Dr. Seow

[Psyche]

5 should C. bulis bulis.
HW postdiscal spot 6 appears very vague below spot 7. Submarginal spot 6 & 7 are perfectly in line.

C. bulis bulis from Laos.
Note HW postdiscal spot 6 is poorly formed under spot 7; submarginal spot 6 & 7 are in a straight line.
http://www.jpmoth.org/~dmoth/Butterflies%20of%20China/11_Lycaenidae/Curetis%20bulis/070501031B.jpg
Upperside.
http://www.jpmoth.org/~dmoth/Butterflies%20of%20China/11_Lycaenidae/Curetis%20bulis/Curetis%20bulis_070702139.jpg

C. acuta dentata. Thailand. dsf
HW postdiscal spot 6 & 7 are in line )combined as one); submarginal spot 6 & 7 are out of line.
http://3.bp.blogspot.com/-U-AIzwUajCw/Un9RDmjsbcI/AAAAAAAAMbc/mFj0a47irQY/s1600/HFH8501+Curetis+acuta+dentata+(The+Angled+Sunbeam) .jpg
Upperside.
https://species.wikimedia.org/wiki/Curetis_acuta_dentata#/media/File:CuretisAcutaDentataMMUpUnAC1.jpg

These two species were confused in the past.

TL Seow: Cheers.