328 MR. V. v. LAIDLAW ON^ 



117. Dysph^a LIMB ATA Selys. 



Di/s2Jh(ea limhata Kirby, Cat. Odonata, p. 40. 



3 d d- Tatan. 1 S . Baraui (6'. Hose coll.; no date). 



The male from Bavam belongs to the race semilimbata of Selys. 

 It is witliout the black costal line between the nodus and ptevo- 

 stigma. of the fore-wing. All the specimens have the liyaline 

 parts of the wings suffused with yellow- brown. 



c5' . (Baram). Abd. 34 mm. + l'S mm., h. w. 30 mm. 



6 . Tatau. Abd. 35 mm.-f-l-S mm., h.w. 30*5 mm. 



LlBELLAGIX^. 



118. ElIINOCYPHA BISERIATA Selys. 



Rhiiiocyjyha hiseriata Kirb}', Oat. Odonata-, p. 113. 



Very closely related to R. angusta Selys from Sumatra and 

 to R. perforata Perch, from Malacca and Lower Siam. The 

 group is Indo-Chinese and Sondaic in distribution. 



1 1 9. Rhinocypha karschi Kriiger. 



Rhinocypha karschi Kriiger, Stettin. Entomol. Zeitg. 1898, 

 pp. 83-85 ; Laidlaw, Proc. Zool. Soc. London, 1902, p. 90. 



4: S 6 . Limbang, ix. 09. 



The species stands alone, without, so far as I know, near allies. 

 It is confined to the Sondaic area. 



120. *E,HiNOCYPHA STYGiA Forster. 



Rhinocypha stygia Forster, Ann. Soc. Entomol. Belg. xli. 1897, 

 pp. 210-211. 



121. Rhinocypha moultoni Laidlaw. (Text-fig. \,a, h.) 



Rhinoaypha moultoni Laidlaw, Proc. Zool. Soc. London, 1915, 

 p. 35. 



4 c^ d, 6 5 $ . Kinabalu, Sept. 1913. 



The a.dult female of this species resembles that of R. stygia 

 Forster very closely, to jiidge at least by Fdrster's rather brief 

 description. But the fully adult male is so brightly coloured 

 about the body — much more so than the female — that I do not 

 think it possible that stygia, which is entirely black about the 

 body, can be merely a very adult specimen of the same species. 

 The four males of tnoidtoni that I have been able to examine are 

 fully mature, and it is interesting to find that they retain on the 

 abdomen tlie colour-pattern characteristic of the teneral female, 

 whicli is lost in the mature female. For whereas the male 

 retains the paired dorsal spots of the a,bdomen from segment 2 

 to 9 as rich orange-i'ed marks in addition to the yellow paired 

 lateral marks, these dorsal marks are entirely lost in the fully 

 adult female, but are veiy conspicuous in newly-emei-ged females 

 as large lemon-yellow areas covering about three-tjuarteis of tht; 



