268 GAYOMYIA FALCATA. 
joint a little shorter than 2nd; 4th shorter than 8rd; 5th 
as long as 4th and 3rd united. 
Forewing long and rather broad, falcate at tip. Costal 
Fig. 8. Gayomyia falcata. 
area very broad at base, strongly narrowed towards the 
middle of wing. At the base a recurrent vein circum- 
scribing a long, narrow and rectangular space. Reticulation 
of costal area dense and irregular in the two basal thirds, 
regular and dense in the apical third. A very narrow, 
hyaline streak runs along and close to the front margin 
as far out as the spot, where subcosta and radius join. 
Many crossveins between subcosta and radius. 6 radial 
sectors, the 6th with 5 branches. Reticulation at base of 
wing dense and irregular. Several black and chitinuous 
dots are found, especially in the costal area and along the 
posterior margin; a large one where subcosta and radius 
unite. Membrane yellowish brown, nervures reddish brown. 
In the dise of wing a large hyaline spot, and along the 
Notes from the Leyden Museum, Vol. XXXVI. 
