334 



MR. F. LAJDLAAV ON 



[CCELICCIA BORNEENSIS (Selys).] 



Coeliccia borneensis Kirby, Cat. Odor^ata, p. 128. 

 (See under C. octogesima (Selys), Laidlaw, Proc. Zool. Soe. 

 LondoD, 1917, p. 231.) 



143. CoPERA ATOMARiA (Sely.s). (Text-fig. 3.) 



Copera atomaria Kirby, Cat. Odonata, p. 129. 



(See also Kriiger, Stettm. Entomol. Zeitg. 1898, pp. 103-107 ; 

 Ris, Tijdschr. v. Entomol. Iviii. 1915, p. 7, sep.) 



Upper anal appendages of male about one-lialf length of lower 

 pair. Tibite not dilated. In the adult male the thorax is bronze- 

 black above, with a few irregular yellow spots repj esentiug the 

 antehumeral band. The sides of the thorax are mottled black 

 and yellow, the legs are entirely red-brown. Abdomen black, with 

 yellow lateral markings on segments 1 and 2 a,nd a basal bluish- 

 white l ing on segments 3-6. Segment 10 and upper pair of anal 

 appendages white, lower pair of appendages black ; distal half 

 marked with white dorsally. 



Toxt-figure 3. 



Prothorax of Cojpera atomaria seen from above. 



Adult female coloured much as the male, but duller. The 

 posterior femora have a i-ow of black dots along their dorsal 

 surface. The posterior thoracic margin of the female carries a 

 pair of small triangular projections directed upwards and for- 

 wards. These are much less acute than the corres^pon ding- 

 structures of the Sumatran species, C. acutimargo Kriiger. 



J. Abd. 28-1- 0-75 mm., h. w. 17-5 mm. $. Abd. 30 mm., 

 h. w. 19 mm. 



Specimens from Lio Matu seem to have been taken in com- 

 pany with Caconeura verticalis Selys ; at least in many cases I 

 found examples of both species papered together. 



To what extent these Bornean specimens are to be regarded as 

 distinct from other allied forms of the genus it is at present 

 impossible to say. But I think it likely that a number of foims 

 of the vittata series of the genus will ultimately be characterized. 

 As I have seen only examples of one foim from Borneo, I have 

 retained for it the Selysian name. 



