320 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
2. Macrothemis vulgipes sp. nov. 
9 Frons luteous below, above and the vertex metallic blue. 
Clypeus pale green, lips luteous, labrum narrowly edged with black 
at the middle only of its free edge, median labial lobe black. Occi¬ 
put brown, a double green spot behind, with a slender forward pro¬ 
longation between the eyes which are in contact for a distance a little 
longer than the length of the occiput. Rear of eyes brown and green. 
Prothorax brown, anterior margin of front lobe, posterior margin 
of middle lobe greenish yellow. 
Thoracic dorsum dark brown, a slender, pale green antehumeral 
stripe efich side, whose width is about T u of the distance from the 
pale mid-dorsal carina to the humeral suture, confluent at its upper 
end with a transversely elongated green spot in front of the antealar 
sinus. Sides and pectus pale green, a narrow dark brown stripe on 
the second and on the first lateral sutures. 
Feet black, trochanters and bases of femora paler, first femora 
pale green inferiorly. Spines of the posterior (inner) row of the 
third tibiae a little shorter and more numerous (17) than those of 
the anterior row (13). All tarsal nails with a short inferior tooth 
as in most Libellulinae, not bifid as in typical Macrothemis; this 
condition has suggested the specific name vulgipes. 
Abdomen wider at 2 and at 8-9, black, 2-5 with a superior pale 
green stripe each side, interrupted by the black additional trans¬ 
verse carina on 2 and 3, and by a longer interval on 4 and 5 where 
it consists of a shorter basal and a longer posterior piece; a small 
pale spot each side at base of 6 in the Panama 9 ; 7 with a green 
oval spot on the middle of the segment, slightly bilobed at either 
end by the mid-dorsal carina running through it, this spot is ^ as 
long as the segment and on either side extends from the mid-dorsal 
carina a little more than half way to the lateral margin; 1 and 2 
with an inferior green spot each side, 3-7 with an inferior luteous 
streak each side. 
Appendages black, a little longer than 10. 
Wings in great part or entirely faint yellowish, all the veins bor¬ 
dered with pale brown in the Panama female (a variation which 
occurs very frequently in various species of Libellulinae, e. g. 
Pachydiplax longipennis ), subcostal, submedian, and postcostal 
spaces deeper yellow to the level of the second antenodal and back 
to the apex of the membranule on the hind wings. Pterostigma 
black. Membranule gray. 
