Cretan) 
IX. Description of a new Species of Corduliina 
(Gomphomacromia fallax) from Ecuador. By R. 
M‘Lacuuan, F'.R.S., &e. 
[Read April 6th, 1881.] 
Tue following description should have appeared as a foot- 
note, attached to the observations on Gomphomacromia 
Batesi, at p. 26 ante :— 
Gomphomacromia fallax, n. 8. 
Wings hardly tinged; neuration black; a slight fus- 
cous mark at the extreme base, which in the posterior 
(especially in the female) is slightly prolonged at the 
base of the subcosta; in the male the area against the 
membranule in the posterior is sometimes tinged with 
yellow, and in the female the base of both pairs is tinged 
with yellow up to the inner triangles: pterostigma dark 
brown (2 mm. long in the male, 23 mm. in the female) ; 
membranule whitish cinereous, paler at the base; a single 
row of post-trigonal cellules, but the first cellule (rarely 
the second also) is double; sectors of the arculus distinctly 
soldered at the base, more so in the posterior than in 
the anterior, and in the male than in the female (in the 
former they are so much united as to become petiolate) ; 
second costal space empty in its basal fourth; 8—9 ante- 
and post-cubitals, male, or 9—10 ante-cubitals, and 
8 post-cubitals, female, in the anterior wings. 
Blackish or dark brown, clothed with cinereous pilosity. 
Front olivaceous brown, with blackish pilosity; labrum 
and lobes of labium somewhat yellowish. Thorax with 
a narrow yellow dorsal crest, a broad and very distinct 
oblique yellow band on the sides between the wings, and 
a less distinct inferior terminal band; breast somewhat 
testaceous. Abdomen very slender, scarcely dilated 
towards the apex in the male; black, somewhat testaceous 
at the base; a yellow spot on each side of the dorsum 
(divided only by the dorsal crest on segments 38—8, 
those on segment 2 larger and more separated). Legs 
short, black, the femora more or less brownish internally 
(and sometimes also externally); lower tooth of the 
claws somewhat shorter and stouter than the upper. 
TRANS. ENT. soc. 1881.—PaRT I. (APRIL.) 
