BORNEAN DRAGONFLIES. 313 



Dolcesclina elacatitra Needham, Bull. Aiiier. Mus. Nat, Hist. 

 23, p. 143, fig. 3. 



'? Jagoria poecUojjtera (pars) Karsch, Entom. Naclir. xv. p. 239 



Jagoria elacatura Martin, Cat. Coll. Selys, ^^i^schn. p. 135. 



Jagoria modiglianii Kriigei', Stettin. Entomol. Zeitg. 1898, 

 pp. 238-259, 327; Martin, Cat. Coll. Selys, ^schn. p. 130 

 (figs. 126, 127); Ris, Ann. Soc. Entomol. Belg. pp. 240-242. 



.2 $ § . Matang Rd. 



I have followed Ris in the synonymy of this species. 

 * Wings suftused with golden brown throughout. 



5 . Abd. 40 mm., h. w. 42 mm. 



5. *Jagoria pceciloptera Karsch. 



Jagonia paiciloptera Karsch, Entom. Nachr. xv. 1889, p. 238; 

 Kriiger, Stettin. Entomol. Zeitg. 1898, pp. 327-328; Martin, 

 Cat. Coll. Selys, JEsclm. pp. 132-133 (fig. 129). 



6. *Jagoria buhri Forster. 



Jagoria huhrl Forster, Insecten-Borse, 1903; Martin, Cat. 

 -Coll. Selys, ^schn. pp. 131-132 (fig. 128). 



This species recorded from N. Borneo by Dr. Forster appears tc 

 me to be very closely related to that immediately preceding it, 

 I have not seen examples of either of these two last species. 



7. Heli^scHiVA id^ (Brauer). 



Amphio'schna? idcp. Kirby, Cat. Odonata, p. 93. 



Helkeschna idee Kriiger, Stettin. Entomol. Zeitzg. 1898, 

 pp. 323-324; Martin, Cat. Coll. Selys, ^sclm. pp. 164-165 

 (fig. 166); Ris, Ann. Soc. Entomol. Belg. Iv. 1911, pp. 242-243 

 (fig. 10). 



1 S. Matang Rd., 2.ii. 11. 1 J. Kuching, 4.ii. 98. 1 J. 

 Buntal, iii. 12. 1 § . Matang Rd., 4. i. 1 1. 1 $ . Saribas, xi. 1900. 

 1 $ . Kuching, iv. 03. 



6 . Abd. 52 + 7 mm., h. w. 52 mm. $ . Abd. 57 + mm., h. w. 

 53 mm. 



The females each have four large spines on ventral plate, the 

 median pair being lai'ger than the lateral pair. The apex of the 

 plate is strongly decurved, and the margin carries smaller spines 

 on either side oi the four larger ones. From the description and 

 figures (Martin, loc. cit. figs. 163, 166) I cannot separate this 

 species from the next. 



8. *HELiiE3CHNA CRAssA Kriiger. 



Helkeschna crassa Kriiger, Stettin. Entomol. Zeitg;. 1898, pp- 

 3'24-325 ; Martin, Cat. Coll. Selys, ^:sclin. pp. 162-163 (fig. 163). 



