238 



PROCEEDINGS OF THE ACADEMY OF 



[1899. 



Falls here by my key, I. c, 1898, p. 95. I note, however, ou 

 the side of the thorax, in addition to the stripes described for 

 brachiale (= contractmn Kamb. ) ou p. 130, Proc. U. S. Nat. 

 Mus., xviii, a blackish stripe running through the spiracle (meta- 

 stigma), and a similar one on the metepimeron parallel to and 

 behind the second lateral suture and confluent, at its lower end, 

 Avith the blackish color along the latero- ventral metathoracic carina ; 

 neither of these stripes reaches to the base of the wings. There 

 are therefore six dark stripes on either side of the thorax, counting 

 the antehumeral as one. A similar number and arrangement of 

 stripes exists in a male from West Africa, given me by Mr, 

 McLachlan, but which from the black color of the autenodals and 

 other cross-veins should be conti-actum ; this male is not at all 

 pruinose, and its colors are in excellent preservation. 



11. Orthetrum Sabina Drury. 



Lib. S. Drury, 111. Exot. Ins., i, pi. 48, f. i, 1773. 



One male (the last five abdominal segments missing) and one 

 female, Berbera, July 4, 1894. 



The race africana Selys (Aun. Eitf. Soc. Belrj., xxxi, p. 22, 

 1887) is slated by him and by JNIr. McLachlan (Entom. Mo. Mckj., 

 2, viii, p. 154, 1897) to differ from the typical Sabina in the 

 following rejpects : 



Sabina Drury. Africana Selys. 



1. Labrum pale brownish yellow black, barely mar- 



gined with pale yel- 

 low. 



2. Sectors of the tri- 

 angle in the hind 



widely separated at 

 their origin 



arising from the same 

 point. 



Anterior lamina Avith a pencil of stiff without the hairs of 

 of the male hairs ou either side Sabina type 



Habitat 



China, Malaysia, 

 Moluccas, New Gui- 

 nea, Vlti Is., India, 

 Syria, Asia 

 Cyprus, 



Mine 



Cameroon ( West Af- 

 rica). 



