ODONATA COLLECTED IN LIBERIA AND BELGIAN CONGO 1039 
ODONATA COLLECTED IN LIBERIA AND THE 
BELGIAN CONGO 
By Puiuipe P. Catvert, ZodLtocican Laporatory, UNIVERSITY 
OF PENNSYLVANIA, PHILADELPHIA 
Sapho ciliata (Fabricius) 
One male, Bakratown, Liberia, October 1926, agrees with the description by 
de Selys in the Monog. Calop., 1854, p. 60, of the “‘plus jeunes” males, as it has 
the wings entirely hyaline. Front wings 34.5 mm. long, max. width 10 mm. 
(at the fifth postnodal cross-vein). Hind wing 34.5 mm. long, max. width 11 mm. 
(at the fifth postnodal cross-vein). The last three abdominal segments have 
been lost. 
Libellago dispar (Beauvois) 
One female, Du River, Camp No. 3, Liberia, agrees better with the descrip- 
tion of the female of this species, as given by de Selys in the Monographie des 
Caloptérygines (1854, p. 227) than with any other by him or by later authors. 
The differences from that description are as follows: Hind wing 22 mm. The 
transverse yellow ray on the labrum is divided into two at the middle, distal 
half of the labium black. Above the yellow humeral stripe is a detached, cunei- 
form, yellow spot, its wider end superior. There is a narrow, mid-dorsal stripe 
on abdominal segment 7, a pair of dorsal spots at the hind end of segments 8—10 
and an inferior lateral spot on 10, all probably yellowish in life. The abdominal 
appendages are 2.4 times as long as segment 10. Inferior surfaces of femora and 
tibiae slightly pruinose (the second legs have been lost). 18-19 postnodals on 
the front wings, 16-17 on the hind wings. 
Ceriagrion glabrum (Burmeister) 
Two males and one female, Monrovia, Liberia. Abdomen ~ 30 mm.,¢ 
33 mm.; hind wing ~ 19.5 mm., ¢ 22mm. Dr. Ris has published two figures 
of the apex of the abdomen of the male of this species in his useful paper on the 
Odonata of South Africa (Annals S. Afr. Mus., XVIII, p. 315, 1922). 
Disparoneura vittata Selys 
One male, Bakratown, Liberia, October 1926. The pale (blue?) antehumeral 
stripe has a maximum width of .75 mm. and a maximum length of 2 mm., reaches 
upward to .7 of the length of the mesepisternum and is unequally bifid at its 
upper end, the outer (or lateral) division longer than the inner, both of them 
very acutely pointed. The third abdominal segment has a very small (.1 mm.) 
pale spot on each side of the dorsum at its anterior end. 
