Scientific name: Elattoneura souteri Fraser, 1924
Malayalam name: ചെങ്കറുപ്പൻ മുളവാലൻ
Family: Protoneuridae (Threadtails / Bambootails) മുളവാലൻ തുമ്പികൾ
Place of observation: Kuttikkad - Pariyaram, Thrissur Kerala
Date of observation : 25-12-2016 - 31-12-2016
https://en.wikipedia.org/wiki/Elattoneura_souteri
Male identification keys
Male - Abdomen 30 mm. Hind-wing 18 mm.
Head black, marked with bright cherry-red; labium brown; labrum and anteclypeus dark brown; postclypeus and cheeks pale red, this colour forming a broadband across the face from eye to eye and most intensely red on the clypeus; rest -of head velvety black, transversed by a broad band of bright cherry-red, with its hinder border at the level of posterior ocelli. Eyes reddish-brown above, changing gradually to greenish-yellow beneath. Prothorax velvety black, with a fine point of cherry-red at the middle of the posterior lobe, and a subdorsal stripe of the same colour in continuation of the humeral stripes. Thorax velvety black, marked with a broad cherry red humeral stripe on each side of the dorsum, these stripes being of the same breadth as the intervening black; laterally a stripe of citron-yellow, limited in front by the first lateral suture, and with its anterior border bright cherry-red; finally, the hinder half of the metepimeron primrose-yellow. Legs black, femora pale on inner side, tibiae yellow on extensor surface. Abdomen black, segment marked with bright cherry-red at its base, and with an angulated yellow marking Legs black, femora pale on inner side, tibiae yellow on extensor surface. Abdomen black, segment 1 marked with bright cherry-red at its base, and with an angulated yellow marking on the sides; segment 2 broadly cherry-red on the dorsum, this marked subapically with two moderately large spots of black and a narrow black apical ring, laterally and apically the red changing to yellow, the sides entirely black below; segment 3 with its basal sixth cherry-red, changing to yellow on the sides, the red part marked with a narrow sub-basal black annule broadly incomplete on the dorsum; also a diffuse subapical yellowish spot on the sides which is repeated on segments 4 and 5, but more obscurely so; rest of abdomen black, unmarked. Wings hyaline, palely enfumed towards the apices in adults; pterostigma black, with a fine frame of yellow lining the inner side of the enclosing black nervures, covering one cell; 17 postnodal nervures in fore-wings, 15 in the hind; Cuii 3 cells long in the fore-wings, 5 in the hind. Anal appendages: the superiors black, marked above with a large dash of cherry-red, directed straight back, constricted at base; ending in a point; seen in profile they dilate rapidly towards the apex, and are furnished below with two robust spines, one medial, one sub-basal; inferiors black, slightly longer than superiors, directed straight back, tapering to an obtuse point, apices curled inward rather abruptly and nearly meeting at the middle line.
Female identification keys
Female- Abdomen 28 mm. Hind-wing 18 mm
Head: eyes dark brown above, greenish-yellow in the lower half, the two zones of colour sharply limited from one another; labium, labrum, and anteclypeus pale brown, cheeks greenish-yellow and connected across the postclypeus by a golden yellow stripe; the red band on the vertex of head replaced by a golden yellow one. Prothorax and thoracic markings similar to the male, but bright greenish-yellow instead of red, these stripes margined finely with golden yellow. Abdomen black, marked with golden-brown and olivaceous; segment 1 with an olivaceous angulated mark on the sides; 2 with a fine golden-yellow line on the mid-dorsal carina, which is continued on to segment 3 nearly as far as its apical border; laterally segment 2 has a hasp-shaped mark of yellowish-brown, and beneath it, a streak of yellow on the ventral border; 3 to 5 have the sides broadly golden brown, the basal portion nearly cut off by an invasion of the black, white apically the golden-brown expands into a diffuse olivaceous spot; 6 to 7 have this marking very obscure; 8 to 10 have a lateral greenish-yellow stripe continuous from segment to segment; the dorsal carina on these segments is the golden-yellow, this colour expanding broadly on segment 9 and less so on 10.
Anal appendages brownish-yellow, shortly conical. Wings hyaline, pterostigma dark brown; nodal index: 15 postnodals in fore-wing, 13 in the hind. Legs black, the yellow markings brighter and more extensive than in the male.
Malayalam name: ചെങ്കറുപ്പൻ മുളവാലൻ
Family: Protoneuridae (Threadtails / Bambootails) മുളവാലൻ തുമ്പികൾ
Place of observation: Kuttikkad - Pariyaram, Thrissur Kerala
Date of observation : 25-12-2016 - 31-12-2016
https://en.wikipedia.org/wiki/Elattoneura_souteri
Male identification keys
Male - Abdomen 30 mm. Hind-wing 18 mm.
Head black, marked with bright cherry-red; labium brown; labrum and anteclypeus dark brown; postclypeus and cheeks pale red, this colour forming a broadband across the face from eye to eye and most intensely red on the clypeus; rest -of head velvety black, transversed by a broad band of bright cherry-red, with its hinder border at the level of posterior ocelli. Eyes reddish-brown above, changing gradually to greenish-yellow beneath. Prothorax velvety black, with a fine point of cherry-red at the middle of the posterior lobe, and a subdorsal stripe of the same colour in continuation of the humeral stripes. Thorax velvety black, marked with a broad cherry red humeral stripe on each side of the dorsum, these stripes being of the same breadth as the intervening black; laterally a stripe of citron-yellow, limited in front by the first lateral suture, and with its anterior border bright cherry-red; finally, the hinder half of the metepimeron primrose-yellow. Legs black, femora pale on inner side, tibiae yellow on extensor surface. Abdomen black, segment marked with bright cherry-red at its base, and with an angulated yellow marking Legs black, femora pale on inner side, tibiae yellow on extensor surface. Abdomen black, segment 1 marked with bright cherry-red at its base, and with an angulated yellow marking on the sides; segment 2 broadly cherry-red on the dorsum, this marked subapically with two moderately large spots of black and a narrow black apical ring, laterally and apically the red changing to yellow, the sides entirely black below; segment 3 with its basal sixth cherry-red, changing to yellow on the sides, the red part marked with a narrow sub-basal black annule broadly incomplete on the dorsum; also a diffuse subapical yellowish spot on the sides which is repeated on segments 4 and 5, but more obscurely so; rest of abdomen black, unmarked. Wings hyaline, palely enfumed towards the apices in adults; pterostigma black, with a fine frame of yellow lining the inner side of the enclosing black nervures, covering one cell; 17 postnodal nervures in fore-wings, 15 in the hind; Cuii 3 cells long in the fore-wings, 5 in the hind. Anal appendages: the superiors black, marked above with a large dash of cherry-red, directed straight back, constricted at base; ending in a point; seen in profile they dilate rapidly towards the apex, and are furnished below with two robust spines, one medial, one sub-basal; inferiors black, slightly longer than superiors, directed straight back, tapering to an obtuse point, apices curled inward rather abruptly and nearly meeting at the middle line.
Female identification keys
Female- Abdomen 28 mm. Hind-wing 18 mm
Head: eyes dark brown above, greenish-yellow in the lower half, the two zones of colour sharply limited from one another; labium, labrum, and anteclypeus pale brown, cheeks greenish-yellow and connected across the postclypeus by a golden yellow stripe; the red band on the vertex of head replaced by a golden yellow one. Prothorax and thoracic markings similar to the male, but bright greenish-yellow instead of red, these stripes margined finely with golden yellow. Abdomen black, marked with golden-brown and olivaceous; segment 1 with an olivaceous angulated mark on the sides; 2 with a fine golden-yellow line on the mid-dorsal carina, which is continued on to segment 3 nearly as far as its apical border; laterally segment 2 has a hasp-shaped mark of yellowish-brown, and beneath it, a streak of yellow on the ventral border; 3 to 5 have the sides broadly golden brown, the basal portion nearly cut off by an invasion of the black, white apically the golden-brown expands into a diffuse olivaceous spot; 6 to 7 have this marking very obscure; 8 to 10 have a lateral greenish-yellow stripe continuous from segment to segment; the dorsal carina on these segments is the golden-yellow, this colour expanding broadly on segment 9 and less so on 10.
Anal appendages brownish-yellow, shortly conical. Wings hyaline, pterostigma dark brown; nodal index: 15 postnodals in fore-wing, 13 in the hind. Legs black, the yellow markings brighter and more extensive than in the male.
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| Simple keys to differentiate between Prodasineura verticalis and Elattoneura souteri |
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