BORNEAN DRAGONFLIES. 



319 



different in shape ; that of M. euterpe as shown in the figure 

 given [loc. cit. text-fig. 1 , a) is rather deeply indented, that of 

 M. westwoodi much more nearly straight. But the readiest 

 means of discriminating the two species is afforded by the anal 

 appendages of the male. In the specimens of M. euteiye I have 

 examined, the upper pair are in every case almost destitute of an 

 external tooth, and are but little shorter than the lower appendix. 



In the case of M. ivesUnoodi both the specimen before me and 

 that described by de Selys have the external tooth well 

 devoloped, and the lower appendage exceeds the upper pair in 

 length very considerably, projecting beyond tiiem by nearly a 

 third of its total length when seen in profile. 



For the rest I record M. cingnlata Ramb. and M. gerstaeckeri 

 on Martin's authority.] 



49. Macromidia fulva Laidlaw. 



Macromiditi fidva Laidlaw, Proc. Zool. Soc. London, 1915 

 pp. 29, 30, text-fig. 3. 



1 c?. Kinabalu. 1 ? . Mt. Matang, 4.xii. 13. 



The male is tlie type of the species and is in the British 

 Museum. 



The female is very immature. The body-colour is a pale brown, 

 with darker bands at bases of abdominal segments 3-7, and there 

 is a brown basal spot on each wing extending nearly to ax.^, the 

 rest of the wing being perfectly clear. Abd. 34 mm., h. w. 35 mm. 



50. Idionyx doheni Kriiger, subsp. boeneensis. 



Idionyx dohrni Kriiger, subsp. borneensis Laidlaw, Proc. Zool. 

 Soc. London, 1913, p. 67. 



51. Metaphya micans Laidlaw. 



Metaphya micans Laidlaw, Sarawak Mus. Journ. No. 2, 1912, 

 pp. 65-67, pi. i. ; id., Proc. Zool. Soc. London, 1913, pp. 65-66 

 (pi. iv. figs. 1, 3). 



The genus occurs in Borneo, New Guinea, and, I believe, in 

 New Caledonia. 



LiBELLULINiE. 



Group I. (of Bis). 



52. Tetrathemis irregularis hyalina Kirby. 



Tetrathemis in^egida^^is hyalina Bis, Cat. Coll. Selys, Libell. 

 p. 47. 



2 c5 . Matang Bd., 25. iii. 10. 1 ^ . Retuh, 16. v, 14. Id. 

 Limbang, 8. ix. 09. 



53. *Tetrathemis flavescens Kirby. 



Tetrathemis flavesceus Bis, Cat. Coll. Selys, Libell. p. 52. 

 1 6 . Sara wak. Aiitotype in Brit. Mus, $ unknown. 



