1896.] Olf DBA00NFLIB3 FROM SOMALI-LAND. 521 



3. On some Dragonflies obtained by Mr, and Mrs. Lort 



Phillips in Somali-land. By W. F. Kihby, F.L.S., 



F.E.S., &c. 



[Received April 21, 1896.] 



Two days were devoted by Mr. and Mrs. Lort Phillips during* 

 their stay in Somali-land to the capture of Dragonflies, and 

 examples of six species were obtained. Five of these belong to 

 the Libellulince, and one to the JiJscJminw ; and though three are 

 common and well-known species, I am able to describe the others, 

 which I refer provisionally to the genus OrlJietrum, as apparently 

 new to science. It is, however, somewhat to be regretted that I 

 have only single specimens before me at present. 



1. Pantala FLATBSCENS, Fabr. .' 

 Dobar, Goolis Mountains, Feb. 4, 1895. 



A common species in most parts of the world, except Europe. 



2. Teithemis AnTBEiosA, Burm. 

 Debar, Goolis Mountains, Feb. 4, 1895. 

 Bichen, Somali-land, Feb. 5, 1895. 



A common African species. 



3. Oexheteum behvistttlum, sp. n. 



Long. Corp. 38 millim. ; exp. ai. 52 millim. ; long. pter. 2-.7 

 milHm. 



Male. Head testaceous, more greenish above, occiput dull orange 

 above, with two black spots on each side ; prothorax blackish, but 

 marked with large yellow spots above and on the sides ; mesothprax 

 and metathorax olivaceous, slightly pulverulent, especially behind, 

 the former with the front carina and an incomplete shoulder-stripe 

 on each side black; pleura with two oblique glaucous stripes, 

 bordered above with black ; abdomen pulverulent blue, with some 

 yellowish markings on the basal segments, which are considerably 

 thickened vertically, central carina black ; terminal upper append- 

 ages about twice as long as the last segment, very hairy, shghtly 

 thickened beyond the middle, and pointed at the extremity ; lower 

 appendage very broad, two-thirds as long as the others, and shghtly 

 upcurved at the extremity. Legs black a,bove and slightly pulve- 

 rtdent ; testaceous below. Wings clear hyaline, even to the base ; 

 membranule pure white, edged with black below on the hind wings. 

 Neuration black ; the front of the costal nervure, the lower ante- 

 nodal cross-nervures, and the nodal cross-uervure for two spaces 

 below the upper antenodal space, testaceous. Fore wings with 11-12 

 antenodal cross-nervures (the last continuous), and 8-9 postnodals, 

 the first 2 or 3 not continuous ; nodal sector distinctly waved ; 

 space between the nodal and subnodal sectors with two rows of cells 

 towards the hind margin. Sectors of the arculus springing from' a 



Proo. Zool. Soo.— 1896, No. XXXIV. 34 



