74 Mr. W. F. Kirby on Odonatafrom Sierra Leone. 



spines scarcely move than seta? on the femora, numerous and 

 rather short and strong on the tibiee, but with a few long 

 slender ones at their base. Abdomen distinctly shorter than 

 the hind wings, not inflated at base ; second and third 

 segments transversely carinated j appendages of second 

 segment prominent, consisting of a small lobe, and an ap- 

 pendage in front directed obliquely backward ; upper anal 

 appendages rather longer than the ninth segment, slender, 

 hardly longer than the broad lower appendage. "Wings with 

 only one cross-nervure in the lower basal cell and no supra- 

 triangular nervures ; nodal sector slightly waved ; arculus 

 rising between antenodals 1 and 2, its sectors with a long 

 stalk. Fore wings with 13-14 antenodal cross-nervures, the 

 last not continuous, and 8-9 postnodal cross-nervures ; triangle 

 crossed by 2 nervures (rarely 1) and followed by one or two 

 rows of 4 cells (rarely 3) and then several rows of 3, in- 

 creasing; subtriangular space consisting of 3 cells (occasionally 

 2 or 4 on one side). Hind wings with 8-10 antenodal and 

 9-11 postnodal cross-nervures; triangle traversed by one 

 nervure, its base lying rather nearer the base of the wings 

 than the arculus; sectors of the triangle subcontiguous ; 

 triangle (above the sectors) followed by one row of 3 (rarely 2) 

 cells, and then by several rows of 2, increasing. 



Female. — Eighth segment not expanded ; vulvar scale 

 distinct, about one third as long as the ninth segment. 



Allied to Thermortheinis, Hadrothemis, &c. The presence 

 of the vulvar scale in the female allies it to Crocothemis. 



Apeleutherus Strachani, sp. n. (PI. II. figs. 4, 4 a.) 



Long. corp. 38-40 millim. ; exp. al. 71-73 millim. ; long, 

 pter. 4 millim. 



Head blackish, face more or less testaceous, especially the 

 labium and men turn. Thorax brown or blackish; a large 

 oval spot on each shoulder,, a longitudinal stripe on each side 

 of the central carina in front, a transverse one behind, in 

 front of the patagia, the inside of the patagia, 3 spots on the 

 upper part of the pleura and others below, and some slighter 

 marks on the interalary spaces pale yellow, or more rarely dull 

 reddish; abdomen greyish brown above (rarely red in the 

 male), but usually reddish below. In the female the base 

 and sides are marked with irregular pale markings and with 

 large pale irregularly-shaped spots, more or less distinct 

 above, on each side of most of the segments, near the base. 

 In the male these markings are usually obsolete. Legs 

 testaceous, more or less blackish above, and with black spines. 



