STKONGYLOGASTEK. 11 



luteous, except at the apex, where they are blackish. The head and thorax are 

 covered with a close, stiff, white pubescence, which is especially long on the face ; the 

 legs also are pilose. The apical fourth of the abdomen is darker than the rest ; but 

 this may be an accidental discoloration. The apex of sheath black, pilose. The 

 transverse median nervure is received beyond the middle of the cellule. The vertex is 

 considerably raised, especially behind the ocelli, there being also a depression between 

 the two upper ones ; the frontal area is raised, longer than broad, rounded at upper 

 end, where there is a small furrow leading into it ; the lower end is more angled at the 

 sides. The lateral foveae are large, the central fovea smaller and with a tubercle 

 occupying it almost entirely. Eyes converging at bottom in front. 



13. Strongylogaster nigriceps. 



Luteus, antennis, capite (ore excepto), abdominis apice, tarsis 4 posterioribus et tibiarum dimidio apicali 



nigris ; alis flavo-hyalinis, apice fuscis, costa stigmateque testaceis, apice nigro. 

 Long. 9 millim. 



Hah. Guatemala, San Geronimo (Champion). 



Frontal area very faintly indicated, ovoid. Lateral foveae large, deep, with a small 

 tubercle in the centre ; central large, semicircular, with a minute tubercle at its apex. 

 Eyes converging. Qypeus transverse. The antennae are distinctly thickened in the 

 middle, slightly attenuated at the apex, and pilose. The costa, stigma, and nervures 

 are yellowish, save in the blackened apical portion, which commences in the middle of 

 the stigma. At the lower part of the radial, and in the lower parts of the cubital and 

 apical cellules, run spurious veins, which follow, to a certain extent, the course of the 

 nervures, and pass through bullae in the radial, third and fourth transverse, and second 

 recurrent nervures; those in the cubital cellules originate in a single vein, which 

 bifurcates a little beyond the second transverse cubital nervure. The anterior tarsi are 

 fuscous at the apex, the middle and apex of middle tibiae black. 



Apart from the coloration, 8. nigriceps may be known from S. melanocephalus by the 

 longer and thicker antennas, longer and more curved spurs, and stouter tibiae and tarsi. 



14. Strongylogaster frontalis. 



Testaceus, antennis, capite pro parte, abdominis apice, tibiarum apice tarsisque nigris ; antennarum basi, ore 



pedibusqne albidis ; alis fumatis, costa stigmateque nigris. 

 Long. 8 millim. 



Rah. Panama, Bugaba (Champion). 



The antennae are rather slender, pilose, nearly as long as the thorax and abdomen ; 

 the third joint is not much longer than the fourth. The lateral furrows behind the 

 vertex are deep ; the lower ocellus is in a roundish depression. The lateral frontal 

 foveae are large and round ; the central is much smaller. The clypeus is truncated. 

 Behind the head is black ; in front it is black along the inner orbits of the eyes above 



cc2 



