BORNEAN BBAGONFLIES. 331 



Diagnostic table for 'males of Bornean s'pecies o/" Rhinocypha. 



A. All four wings with opaque areas. 



a. Opaque area of liiuder-wiiig with hyaline windows, 



" mesothoracic triangle " jjresent R. hiseHata Selys. 



h. Opaque area of wings without hyaline windows. 



1. Large antehumeral l)lue ray on thorax. 



a. Terminal two-fifths of wings opaque J?. /«()»era/«s Selj's. 



/.■J. Terminal fourth of wings opaqrxe R. eximia Selys. 



2. Antehumeral band of synthorax narrow. 



y. Terminal opaque area of wings beginning at level 

 of prostigma in front ; posterior tibias not dilated ; 

 slight enlargement of posterior margin of second 

 abdominal segment RJnnoci/pJia sp. A. 



S. Terminal two-flfths of wings opaque. Posterior 

 tibisB dilated, blue on anterior surface. Marked 

 enlargement of posterior margin of second abdo- 

 minal segment R. ciccvllafa Selys. 



B. Hindez-wings only with opaque markings. Dorsal marks 



of abd. segments 2-8 red R. JcarscJii Krviger. 



C. No opaque markings on wings. 



1. Abdominal markings lost R. stijgia Forster. 



2. Dorsal markings on abdomen red, lateral markings 



yellow. 

 a. Apex of clypeus marked with orange-yellow. 



Lateral abdominal markings from segment 2-5 

 brokeii into an anterior line and posterior spot. 

 The anterior line is entirely fused with the dorsal 

 mark on these segments. From 6-8 the lateral 

 series is represented only by an anterior spot fused 



to the dorsal marks R. moultoni Laidlaw. 



j(3. Apex of clypeus black. 



Lateral abdominal markings present as a complete 

 band of rnther irregular outline on segments 2-7, 

 only fused with the dorsal marks at its extreme 

 base, and not at all on segments 2-3, on which 

 segments the dorsal mark is small or absent Rhinocypha sp. B. 



127. Rhinoneura villosipes Laiclla.w. 



Rhinoneura villosipes Laidlaw, Proc. Zool. Soc. London, 1915, 

 pp. ;:}3-35 {text-figs. 4, 5 a). 

 1 c5^ . Mt. Kinabalu. 

 Autotype in British Museum. 



128. Micromerus aurantiacus Selys. 

 Micromerus aurantiacus Kivby, Cat. Odonata, p. 115. 

 1 S 6 • Linibang. 



129. Micromerus semiopacus Selys. 



Micromerus semiojxwus Kirby, Cat.. Odonata,, p. 115 ; Ris, Ann. 

 Soc. Entomol. Belg. Iv. 1911, pp. 233-234 (fig. 1). 



3 d c? . Lio Matu. 2 d c? . Ulu Akar, xi. 14. 2 $ $ . Lio 

 Matu. 



