Triacanthagyna and Gynacantha 55 



Explanation of Letters in Venational Tabulation 



a. One present in one left front wing. 



b. In one wing' a minute fourth cell formed by a forking, near its distal end, of 

 the crossvein. 



c. Two wings each with one crossvein forked, and three wings each with a 

 single double cell. 



d. Two for one cell's length 'in two wings and two for two cell's length in 

 one wing. 



e. One wing with two rows only one cell's length, and one wing with double 

 and single cells interspersed. 



f. One front wing with an antenodal of the first series basal to the first thickened 

 antenodal. 



g. Obviously an abnornial condition. 



h. This is the Paramaribo specimen, — the type. 



i. One present in one right hind wing. 



j. Abnormal. 



k. Left front wing with added basal crossvein in both series ; absent in right 

 front wing and left hind wing ; right hind wing with an added crossvein in the 

 second series. 



1. In both cases anal loop apparently malformed. 



m. In two wings tliere are some single cells between the anal loop and the hind 

 wing margin. 



n. In the left front wing and left hind wing of one specimen Ms, beyond the 

 loop of M4, is diverted or switched anteriorly one row of cells, resulting in three 

 rows of cells between M3 and M4. This is the only case observed in all the wings 

 examined in this study in which a main sector is so diverted. 



o. One row of two cells. 



p. Two for one-two cell's length. 



q. Abnormal. 



r. Abnormal. 



s. In each case the fourth cell is small, interpolated. 



t. In one wing the cubital space is two cells wide for a distance of three cells. 



u. In one wing a few rows of three cells. 



