ODONATA COLLECTED IN LIBERIA AND BELGIAN CONGO 104I 
Vulvar lamina well displayed, bilobed, interval between the lobes about .33 mm., as compared 
with .25 mm., the width of each lobe at its base, forming an obtuse angle at each side (right and 
left), the middle of this interval a little convex and bent slightly dorsad; the two lobes diverging 
from each other at a little more than 90° in their distal halves, each lobe about .28 mm. long, nar- 
pool: _ a rounded apex, and bearing on its ventral surface a subbasal, transverse ridge or tubercle 
‘ig. 25). 
Colors of the abdomen not well defined, apparently similar to Dr. Ris’ description. 
Wings ‘“‘ziemlich dunkel grau braun beraucht,” yellow at the base not well defined, usually 
paler in the middle of each cell; in the front wings reaching to slightly beyond the second antenodal 
and the arculus, in the hind wings to the fourth antenodal, triangle and also below the distal side 
of the triangle and thence to the anal angle. Costal margin of pterostigma, on front wings, 2.7 mm., 
on hind wings 2.8mm. 13 antenodals on the front wings; 2 rows Rs-Rspl and 1 row M4—M4spl 
on all wings; triangle of both hind wings with one cross-vein. 
Abdomen, 24; width at segment 3, 3.7; at segment 8, 3.7; hind wing, 30 mm. 
Female No. 3 (Bequaert). Similar to No. 2, but the dark brown on the mesal margin of the 
lateral labial lobes extends distad for more than one half the length thereof. Face browner, a dark 
brown spot on the center of the labrum but not reaching any margin thereof; each side of the 
frons superiorly a little reddish, a mere trace of the black line in front of the eyes and nothing of it on 
the upper surface of the frons. 
Thoracic markings as described for No. 2 above, the metepisternal stripe above the metastigma 
longer (1.33 mm.), the posterior maigin of the metasternum narrowly blackish, the black of each 
latero-ventral metepimeral carina prolonged slightly in dark brown at its anterior end onto the 
metasternum. 
Distal halves of the femora and the whole flexor surfaces of the tibiae blackish. 
Lobes of the vulvar lamina bent more dorsad and apparently somewhat retracted cephalad and 
hence not so readily visible. 
Colors of abdomen better preserved, being more of a pale olive than “‘triib rotbraun,” all 
carinae, hind margins of 3-7 and most of the dorsal surfaces of 8-10 black; in addition, 3 and 4 
have a longitudinal brown stripe on each side of the dorsum midway between the mid-dorsal and 
lateral carinae. 
Wings much less (but still slightly) smoky; yellow at the bases paler than in No. 2, ill-defined, 
on the front wings reaching to the first antenodal and the cubital cross-vein, on the hind wings to 
the second antenodal and the arculus, and caudad for 2-8 cells beyond the membranule. Costal 
margin of pterostigma, front and hind wings, 2.8 mm., 13 antenodals on the front wings; 2 rows 
Rs-Rspl, 1 row M4—M4spl, all wings; triangle of hind wings free. 
Abdomen, 26; width at segment 3, 3.27; at segment 8, 2.86; hind wing, 30.5 mm. 
Tholymis tillarga (Fabricius) 
One female, Du River, Camp No. 3, Liberia, July 24, 1926. 
Palpopleura lucia (Drury) 
Three specimens, Du River, Camp No. 3, Liberia, July 1926, as follows: 
one male lucia type form male of Ris, Cat. Coll. Selys, Libell., p. 8321, approach- 
ing pl. I, fig. 1 (Cameroon); one male var. portia Drury, Ris, p. 321, nearest pl. I, 
fig. 7 (Nossibé); one female Ris, p. 322, nearest pl. I, fig. 11 (Cameroon). 
Acisoma panorpoides ascalaphoides (Rambur) 
Ris, 1911, Cat. Coll. Selys, Libell., p. 458; 1919, loc. cit., p. 1152. 
One female, Monrovia, Liberia, abdomen 17 mm., right hind wing 20 mm., 
pterostigma of front wing 2.5mm. The dark brown anastomosing stripes on the 
thorax are distinct. The left hind wing (Fig. 26) is malformed from slightly 
beyond the arculus, its length along the costal margin 9.5 mm.; beyond the 
