OCR Text |
Show 388 ON THE DRAGONFLIES OF THE " SKEAT EXPEDITION.' [Dec. 2, so far as the male is concerned, in being somewhat larger, in having segments 8-9 of the abdomen blue or brownish blue, and in addition having a black epistome, and no black carina on segment 1. It is, however, scarcely advisable to name this supposed new species until definite evidence as to the female of the typical A. nigricans is forthcoming. See also Selys, Ann. Mus. Gen. (2) x. 1890, and Ris, Arch. f. Naturg., Jahr. 66, Bd. i. p. 200. * A griocnemis m in im a Selys. Agriocnemis minima Kirby, Cat. Odonata, p. 151 , Kiiiger, Stett. ent. Zeit. 1898, p. 126. Collected by Dohrn in Penang. A griocnemis in c is a Hagen. Agriocnemis feminina Kirby, Cat. Odonata, p. 158. Agriocnemis incisa Kriiger, Stett. ent. Zeit. 1898, p. 127, Ris, Arch. f. Naturg., Jahr. 66, Bd. i. p. 200, pi. x. fig. 19 (1900). Two males and a female of the orange variety from Khota Baru, Kelantan. The rose-colour of the latter only extends to the fifth abdominal segment. A griocnemis p u l v er u l an s Selys. Agriocnemispulverulans Kirby, Cat. Odonata, p. 158; Kriiger, Stett. ent. Zeit. 1898, p. 127. 4 3 from Khota Baru, Kelantan. The members of the above genus are the smallest known Odonates. The length of the hind wing of a male of A. incisa is 9 mm. and of the abdomen 16 mm. Both this and the preceding genus (Argiocnemis), as well as the two following, are found, so far as my experience goes, chiefly in cultivated low-lying land near the coast. Certainly I never saw specimens of any of them " up-country," whilst in the big rice-fields about Kelantan and Tringganu they are the only Coenagrions that are at all abundant. * O n y c h a r g ia a t r o c y a n a Selys. Singapore. *O n y c h a r g ia v it t ig e r a Selys. Singapore. PsEUDAGRION MICROCEPHALUM Ramb. Pseudagrion microcephalum Kirby, Cat. Odonata, p. 153. 3 cS' from Tringganu. C er iag r io n c er in o r u b e l lum (Brauer), Penang. Sumatra. Ceylon. |