142 EAST AFRICAN ODONATA— CALVERT. vol xviii. 



I "would have no liesitation in referring this male to J), mufata, Selys, 

 were it not that his description of the appendages 

 as seen in profile ("de profll on les voit dilates 

 en dessous en uue dent median e triangulaire") does 

 not mention the tivo teeth shown in my figure 

 (Fig- 15). The question arises: Can the appendages 

 DispAEONEURA Mu- ^f thc tjpe be partly retracted within the last 

 TATA ( ?), Mule. segment so as to hide the more basal of the two 



Side view of abdominal ap- ■^■cka■^■^^ '9 

 pendages. teeTU , 



AGRION INSULARE, Selys (?). 



Agrion insidare, Selys, Rev. Mag. Zool.,p. 179, 1872; Bull. Acad. Belg. (2), XLI, 



p. 1288, 1876. 

 Ccenagrion insulare, Kirby, Cat. Odon., p. 150, 1890. 



One male in the National Museum collection, from the Seychelles, 

 collected by Br. W. L. Abbott, may belong to this species. The last 

 three abdominal segments are wanting. It differs from the description 

 of Baron de Selys' as follows: 



Pterostigma covers one and a half cells on front wings, two cells on 

 hind wings; 14-15 postcubitals. No black marks on labrum. A small 

 linear yellow spot each side of vertex. Postocular spots represented 

 by a metallic green patch. All but the head (and wings?) of the type 

 (male) are wanting. 



Dorsum of prothorax and thorax metallic green. Prothorax with 

 hiud margin rounded, entire. Sides of thorax pale blue ( ?), a metallic 

 green baud on the first lateral suture, a black one on the second lateral 

 suture; both comi)lete. 



Feet luteous, with a superior black line. 



Dorsum of first tliree abdominal segments metallic green, of 4-7 

 black ; sides and below, light blue ; a basal blue ring on 3-7, interrupted 

 dorsally. 



2Ieasiirements. — Length of head, thorax, and first 7 abdoniinal seg- 

 ments, 38 mm. Front wing, 24. Hind wing, 23. Pterostigma, 1.5. 



PSEUDAGRION PR^TEXTATUM, Selys. 



Pseudagrion pratex-tatum, Selys, Bnll. Acad. Belg. (2), XLIII, p. 49-1, 1876. — 

 Kirby, Cat. Odon., p. 153, 1890. 



Thirteen males and six females in the National Museum collection, 

 from Kilimanjaro, belong apparently to this species. Only one male lias 

 the abdomen complete, and its appendages are in such bad condition as 

 to afford no help in identification. The colors of these specimens agree 

 with the description. The younger males have the sides of the thorax 

 i:)ale green, a short black stripe at the base of the front wings, no black 

 marks on the pectus, the abdomen with a greenish metallic or bluish 

 metallic luster. 



' Bull. Acad. Belg. (2), XLI, p. 1288, 1876. 



