Transactions and proceedings and report of the Philosophical Society of Adelaide, South Australia . insects. In theposition of rest, the wings are rolled round the body, theleft forewing overlying the right. The larvae, none of whichhave so far been described, cling to rocks in running streams, and are remarkable for possess-ing a unique development of arosette of gill-filaments aroundthe anus, numbering fifty ormore, which can be extrudedor withdrawn as gills are usually of abeautiful pink or lavendercolour, more rarely whitish. No study has yet beenmade of the tracheation of t
Transactions and proceedings and report of the Philosophical Society of Adelaide, South Australia . insects. In theposition of rest, the wings are rolled round the body, theleft forewing overlying the right. The larvae, none of whichhave so far been described, cling to rocks in running streams, and are remarkable for possess-ing a unique development of arosette of gill-filaments aroundthe anus, numbering fifty ormore, which can be extrudedor withdrawn as gills are usually of abeautiful pink or lavendercolour, more rarely whitish. No study has yet beenmade of the tracheation of thelarval wing in this I was living at Hornsby,New South Wales, I discovereda small Leptoperlid larva onthe rocks in one of the creeksflowing into Old Mans Valley,and succeeded in rearing theinsect, which was found to bea new species of Dinotoperla,and will be described in thispaper. A study of the wing-tracheation of this larva ledto the discovery of the presenceof the important specializationmentioned above for the hind-wing, viz., that there is alwayseither a complete or partial. fusion of M3 + 4 with Cuj. The Text-fig. carpenteri, n. sp.(x8). The insect in the naturalposition of rest. chief purpose of this shortpaper is to demonstrate thispoint, as a preliminary to thecomplete working out of thenumerous undescribed generaand species of this family 272
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1878
