On a collection of dragonflies made by members of the Skeat expedition in the Malay peninsula in 1899-1900. [Pt. I] / by F.F. Laidlaw.
- Frank Fortescue Laidlaw
- Date:
- 1902
Licence: In copyright
Credit: On a collection of dragonflies made by members of the Skeat expedition in the Malay peninsula in 1899-1900. [Pt. I] / by F.F. Laidlaw. Source: Wellcome Collection.
Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.
12/36 page 72
![line following the transverse carina in 3-4. On segment 7 a dorsal yellow spot divided longitudinally by the black mid-dorsal carina. Traces of a transverse carina are present on segment 5. The abdomen is slightly dilated at its base, but from segment 4 onwards very slender. Coloration in the female as in the male. The traces of a transverse carina in segment 5 are more distinct laterally. The abdomen is broader and of practically equal circumference throughout. In the male there are on the antero-inferior surface of the femur 17 short curved teeth directed towards the knee, and increasing in size distally veiy gradually. These are followed by three straight spines inclined in the same direction; the first of these is the shortest and the last the longest. The third femur is provided on the antero-inferior surface with a row of 23 thorn-like teeth with their apices directed away from the knee. These increase gradually towards the distal end of the femur. *Nannophya pygm^a Ramb. Kannophya 2^y(jnicea, Kirby, Cat. Odonata, p. 45. The Bidtish Museum has a number of specimens of this species from Singapore. Genera of nncei'tain position. Neurocena IDA Hagen, (Plate Y. fig. 1.) Zygonyx icla., Hagen, Yer, Ges. Wien, xvii. p. 62 ; Brauer, op. cit. xviii. p. 370 & p. 742; Selys, Ann. Soc. Ent. Belg. ,xii. p. 96; id. Ann. & Mag. Nat. Hist. (4) iii. p. 274; id. C. R. Soc. Ent. Belg. XXXV. p. ccxxvii. rseadomacromia Inxuriosa, Karsch, Berl. ent. Zeitschr. xxxviii. p. 21. Zygonyx ida, id. Ent. Nadir, xxi. p. 203; Calvert, P. Ac. Philad. 1899, p. 246. Neurocena ida, Kirby, Ann. & Mag. Nat. Hist. (7) v. p. 541. This appears to be an exceedingly variable species, and the single specimen I obtained differs to a certain extent from those described hitherto, so that it seems worth while to give a faiily full account of it. The length of the hind wing is 42 mm., of the abdomen 38 mm. The wings are hyaline, faintly tinged with yellow, which becomes vivid towards the outei' extremities of the fore wings. In a male in the British Museum Collection the wings are almost colourless. The reticulation is black. Aore loings. 14 antenodals ; on the left side the outermost is continuous, on the right side discontinuous. 7 to 8 postnodals. Internal triangle of both wings free.^ discoidal triangle free. (Tl^ internal triangle is usually divided into two or three cells ; de Selys states that in two females examined the discoidal triangle [10]](https://iiif.wellcomecollection.org/image/b22406566_0014.jp2/full/800%2C/0/default.jpg)
