GUANACASTE—PUNTARENAS TO LIBERIA 409 



four belonged to the subfamily of the Libellulinae, having 

 the bases of the hind wings wider than those of the fore 

 wings, the eyes meeting each other on the top of the head 

 and the conspicuous triangle of veins dissimilarly shaped on 

 the fore and hind wings. Two of these four species were of 

 the purely tropical American genus Micrathyria, but while 

 one of them {schumanni) is known only from the Pacific 

 side of Mexico and Central America, the other {ocellata 

 quicha) has been found on the Atlantic side in Mexico and 

 Guatemala as well. They were about one and one-quarter 

 inches long with a wing-spread of two and one-eighth inches. 

 The wings of the female schumanni were pale brown at the 

 tips, of the other sex of this species and of both sexes of ocel- 

 lata quicha almost colorless. 



The other two species were of Erythrodiplax, also an em- 

 phatically tropical American genus, although some of its 

 representatives are frequently found north and others south 

 of the tropics. The specimens of E. ochracea which we took 

 here were of nearly the same size as the Micrathyrias just 

 mentioned. They had the bases of the wings brownish- 

 yellow which becomes darker with advancing age. In Mex- 

 ico and Central America ochracea is known on both coasts 

 and occasionally up to 5000 feet altitude although it is 

 chiefly a lowlander; in South America it is known east, but 

 not west, of the Andes. 



The fourth species, E. funerea, is in some respects the most 

 interesting. It is one and three-fourths inches long and has 

 a wing-spread of two and one-half inches. Our Puntarenas 

 specimens had but recently transformed and the immature 

 wing coloring of the males and one sort of females consisted 

 of a pale yellowish-brown extending over the whole width of 

 the wings from the bases outward for two-thirds the wing- 

 length, while the extreme tips were edged with darker brown. 

 There was also another sort of female here, with the same 



