Dear members I’d like to propose open genus thread titles. For example “Cyrestis sp.” or “Genus: Cyrestis”, etc. This way we can post photos of our specimens under one thread as many of us have different species in our collections. This would make a variety and many pictures of related species at one place. Of course I’m not talking here about genus Papilio for example coz that would take hundred of pages of photos but less common butterflies and moths.
Just my thoughts to make this forum more interesting.
Thank you Trehopre1 for posting always interesting articles with photos.
Cyrestis themire is the smallest species with wingspan reaching 35mm. Cyrestis themirethemire inhabits peninsular and south Thailand, Myanmar and W.Malaysia. I found it on two neighbouring islands on Gulf of Thailand: Koh Samui and Koh Phangan.
Cyrestis cocles is another species occurs in SE Asia. Subspecies earli inhabits peninsular Thailand. I only found it common on Koh Tao, small island on Gulf of Thailand. I remember I must to see this species once also on mainland Thailand near Chonburi but I wouldn't say it is common and there is nominate ssp.cocles.
On Koh Tao there are two forms: formosa and earli.
People who collect them by purchasing may not know the VERY special behaviour of Cyrestis species. Most of the time, they sit on the underside of leaves with they wings horizontaly spread (a little bit like Geometridae). A rather unique behavious for a Nymphalidae.
Post by wollastoni on Nov 13, 2020 11:33:55 GMT -8
A short extract of van Mastrigt paper :
Discussion The author agrees with Fruhstorfer's (1912: 589), statement that ssp. biaka cannot be treated as a subspecies, but should be given specific rank and herewith propose the formal combination: Cyrestes biaka Grose Smith, 1894, stat. nov. The much more obvious subapical and subterminal rows of black Description Male - Upperside of forewing brown, with a post median (creamy) white band from dark costa to inner margin, getter wider towards inner margin. Vein Ris brown in white band. A subterminal band bordered by two pale lines with seven orange brown bordered black quite oval spots, from costa to inner margin, of which the third and fourth spots are narrow and elongate and the last two spots much smaller and connected one to another. Inner brown part bears some pale brown verticallines from costa to inner margin, some others only till cubitus. Upperside of hind wing, with an irregular termen, with a sharp, short tail at vein M3and a second, more rounded one at vein CuA2,continues the pattern of the forewing. The (creamy) white band is getting narrower from costa to inner margin and is ending in a large orange brown spot with to eyes. The subterminal band has six much better developed spots, of which the first one is smaller and the last one larger than the four others of more or lessthe same size. Underside of both wings have same pattern as on upperside; however, light brown ground colour with much more obvious light parts which are grey to white. Female- As male, however lighter brown coloration, with a creamy postmedian band. At the upperside of hindwing is the large spot at inner margin dirty brown in stead of orange brown in males. Length of forewing: 26-32 (av. 29.42) mm Derivation of name: 'kumambana' is a adjective in apposition, derived from the Kumamba Archipelago, where this subspecies occurs. Suara Serangga Papua, 2010,5 (1)Juli - September 2010 9 spots with orange brown borders on the upperside of both wings and the absence of the orange brown spot at the bottom of the white band, at the inner margin are two important characteristics th at distinguish this species from C acilia and others. The presence of only 3-4 distinctly developed spots in the submarginal band on the forewing, instead of six, characterizes all mainland populations and those.frorn islands close to the mainland, such asWaigeu, Batanta, Mioswar, Japen and PantaiTimur islands. However, individuals with lessdeveloped third and fourth spots, even sometimes absent, are nearly all areas. Populations with six weil developed spots are treated as separate (sub)species and found on Numfor (C aeilia maforensis), Supiori and Biak (C biaka stat. nov.) and Moor and Mambor islands (C aeilia moorensis subsp. nov.). In summary, the following taxa of Cyrestisoccur in Papua province and adjacent islands, Indonesia: Cyrestis acilia (Godart, 1819), with ssp.aeilia Godart, 1819, from Waigeu, Japen and mainland of Papua ssp.miso/ensis Marten, 1903, from Misollsland ssp.maforensis Marten, 1903,from Numfor Island ssp.moorensis subsp. nov., from Moor and Mambor Islands ssp.kumambana subsp. nov., from the Kumamba Archipelago Cyrestis biaka Grose Smith, 1894, stat. nov., from the islands of Supiori and Biak.
Last Edit: Nov 13, 2020 11:34:52 GMT -8 by wollastoni