S. Mahunka szerk.: Folia Entomologica Hungarica 64. (Budapest, 2003)

All the collected material of A. dahnersi are males. This may be due to the fact that females approaching the hilltopping sites are immediately chased by males. In response, females perform an ascending flight at this initial contact and drop again rapidly out of sight. Another factor may be that since A. dahnersi is a very swift flyer, and handling a 4 m net is somewhat awkward, catching airborne individuals (like females) is far more difficult, restricting the known samples to perching males. During the early morning hours, the number of observed individuals of A. dahnersi is few. However, these numbers rise through the morning to a maximum occurrence at about noon. Subsequently there is a decline until about 2 pm when accumulation of clouds limits nearly all butterfly activity. Sunshine is an essential factor in the flight activity of nearly all butterfly species at this site. In fact, the early morning hours are rather chilly here until the rising sun warms the air suffi­ciently to permit more and more flight activity. The rising sun also generates a flow of moist air rising along the mountain's slopes and this leads, in turn, to a blanket­ing of stationary clouds that eventually covers the cooler areas near and above the summits. Consequently, from about noontime, sunshine is at best intermittent and ambient temperature varies accordingly. These meteorological conditions most likely account for the peculiar observed behaviour of A. dahnersi. Normally, the butterfly sits on the upper side of a leaf with wings doubled, vertically aligned, and perpendicular with respect to the leaf surface. When a cloud blocks the sun, it con­tinues to sit quietly. When a shady interval is long, or if the butterfly is disturbed, it will fly off out of sight and often not return. On the other hand, if periods of sun­shine are corpuscular and briefly intermittent, the butterfly can be seen shifting its position around on the leaf, aligning its still-doubled wings into more favorable an­gles with respect to the solar radiation. Occasionally, it may even be seen with its wings tilted away from vertical, although never to the extreme seen in A. anna, which practically lies on the leaf surface, mimicking bird droppings with its dra­matically mottled brown-and-white coloured ventral wing surfaces. Hostplant - We have noted in the introduction that the known larval hosts of Atlides all belong to the family Loranthaceae (Zikán 1956, Howe 1975, Ballmer & Pratt 1988), which otherwise have been only recorded in the tribe Eumaeini for species included traditionally in Mitoura Scudder, 1872 (type species: Thecla smilacis Boisduval et LeConte, 1835) (Fiedler 1991: 175-182). Loranthaceae­feeding species of Mitoura were subsequently placed in a separate genus Loran­thomitoura Ballmer et Pratt, 1992 (type species: Thecla spinetorum Hewitson, 1867) (which, by circumstance of a congener in Guatemala not treated by them is a junior synonym of Cisincisalia Johnson, 1992).

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