igig.] 



F. F. LaidIvAW : Indian Dragonflies. 



191 



In my account of the type I stated that the apices of the 

 lower pair of anal appendages lie 

 internally to the upper pair. In the 

 present specimen they lie imme- 

 diately below them. 



This species, the smallest Indian 

 representative of the genus, is prob- 

 ably a local development of the 

 stock from which C. erubescens^ 

 SelySj is derived. I have seen no 

 Indian examples of the latter, but 

 Selys {0 donates de Birmanie, p. 517, 

 1891) has recorded the occurrence 

 of a red-bodied form from Burma, 

 which he regards as a race of C. coro- 

 mandelianuui , under the name C. ertihescens, Selys, now regarded 

 as a distinct species. (vSee Ris, Abh. Senckenb. Ges., XXXIV, 

 pp. 520-522, pi. xxiii, figs. 13-14; 1913). 



Fig. 



-Cei'iagriou rnbiae, Laid- 



law. 

 Apex of abdomen. 



Ceriagrion fallax, Ris. 



Ceriagi'ion fallax, Ris, Eiitomol. Mitteil., Ill, 2, pp. 47-48, fig. 2. 

 Ceriagyion iHelaininnn, Selys, An>t. Mus. Civ. Genova, X (xxx), 

 p. 520 (1891) ; Ris, Abh. Senckenb. Ges., XXXIV, p. 520. 



Until distinguished by Dr. Ris this species was confused with 

 the following (C. melannrum, Sel3^s). 



Selys' record of C. melanurum from Burma {loc. cit.) appears, 

 from his note on the anal appendages, to refer to this species. 



Ceriagrion melanurum, Selys {pars). 



Ceriagrio)! melaniiriiniy Kirby, Cat. Odonata, p. 154, 1890; Ris, Eiito- 

 mol. Mitteil., Bd. Ill, 2, p. 44-47, fig. i (1914); Maclachlan, Ann. 

 Mag. Nat. Hist. (6), xvii, p. 374 (1896) ; Kruger, Stettin. Entom. 

 Zett., 1898, p. 120. 



2 (^ (^, 2 5 ?, F"oot of Eiepliant Hill, near Yawngwlie, S. Slian States, 

 6-iii-i7 [F. H. Gmvely). 7166/H.1. 



These four specimens are all very immature, and of uniform 

 pale gray-brown colour. For some time I was unable to determine 

 their proper position in the genus. Mr. H. Campion has very 

 kindly examined them for me, and suggests that they are referable 

 to this species. They are, however, scarcely typical. The point 

 of origin of Ab is scarcely different from that occurring in C. 

 coromandclianii'ni (Fabr.) for example, it is perhaps just perceptible 

 before Ac. The appendages of the male agree with Ris' figure. 



The species occurs in Moupin, Shanghai, Sumatra, Japan. 



Genus Pscudagrion. 



In at least three, possibly four, of the Indian species the males 

 have ' recognition-marks,' probably of sexual importance, at the 

 tip of the abdomen. 



