_; l ill: l MM. \ll RE STATE OF THE ODONATA. 



sprinkled about, and small bristles on the rounded sides; a transversa] much 

 waved suture behind the eyes; in middle two large ovoid spots, and in 

 front of them two prominent conical tubercles, sharp on tip; occiput behind 

 with shallow notch ; forehead a little convex, brown with a white middle 

 hand, forked at base and covering the little indicated ocelli, on each side a 

 pale hand extending outside of antenna 1 ; vertex small, rounded ; forehead 

 sprinkled with black dots; antenna 1 long, extending beyond the lower edge 

 of palpus, thick, seta a little thinner; 1st joint cylindrical, 2d equally long, 

 thinner at base, rounded on tip; 3d less long than the basal ones together, 

 4th much shorter and 5th little shorter than 3d, 6th as long as 3d, 7th short 

 subuliform ; mask short, distinctly spoon-shaped, extending between fore 

 legs; basal part as long as broad, front part bent down, and produced in an 

 obtuse angle; palpus large, triangular, edges straight with nine short teeth; 

 movable hook short, sharp. 



Prothorax about as broad as hind border of occiput, rounded behind with 

 an inflated rim, sides triangular, acute, a little hollowed ; stigma free ; wing 

 cases reaching 6th segment; sides of thorax brown above, paler below; ab- 

 domen broad, somewhat flattened, length less than twice the breadth, roof- 

 shaped above, flat below, oblong ; side margin sharp, convex, with a dense 

 brush of short bristles; gently sloping towards base and segments 7th to 9th 

 to tip. which is truncated ; segments equal, 10th very short and inserted in a 

 rounded apical notch of 9th ; lateral spines on 8th and 9th sharp, flat, distant ; 

 those of 9th very long, surpassing the appendages; dorsal hooks on 3d to 

 9th, the first thin, sharp, conical, the following larger, flattened laterally, the 

 sharp tip bent backward ; on 9th more incurved, nearly connate with dorsum 

 excepi on tip; anal appendages as long as last two segments, comparatively 

 small, triangular, straight, the sharp tip hairy; dorsal median one fourth 

 shorter than inferiors; the basal half of its dorsum squarely enlarged in the 

 male ; laterals a little shorter than dorsal ; ventral longitudinal sutures 

 straight, ending inside the apical angle of 9th segment; middle space larger 

 than laterals; apical border of 9th segment hairy; genitals marked; ventral 

 bags on 6tb segment. Dorsum with a black dot and a larger j^ale mark 

 about in the middle of each side of the segments. Legs very long, hind 

 femur reaching 8th segment, thin, cylindrical; widely separated at base, 

 fore legs a little less; lemur bent, tibia straight, a little longer; 1st joint 

 of last tarsus less than half as long as 2d ; legs sprinkled with darker very 

 fine dots, making two rings on femur and tibia. 



