OF WASHINGTON, VOLUME XVIII, 1916 37 



Anal. Fig. 1, UW'U 1 ; fig. 2, WW 1 . 



The third basal longitudinal vein which diverges from the ante- 

 rior margin of the wing, originating either at the base of the wing 

 or on submedius and joining submeclius again beyond nervulus. 

 Found only in some Chalastogastra. In some wings there is a 

 free basal portion of the anal vein which is not connected to sub- 

 medius and in such cases it can be assumed that the anal has co- 

 alesced medially with submeclius and a portion of the base has 

 become obsolete. In a selected series of sawfly wings it is pos- 

 sible to produce evidence that when the anal vein is absent it has 

 united with submedius, but in other sawfly wings the evidence is 

 quite otherwise and it would be more plausible to assume that the 

 anal vein has been entirely lost. 



Synonyms: Humerus Thomson, Konow 1901, Morice 1903, Schmiede- 

 knecht 1907, Enslin 1912. Nervus humeralis Thomson. Humeralaare 

 Nielsen and Henriksen 1915. Vena accesoria Foerster 1877. Nervus 

 accessorius Andre 1879. Accessory vein Cameron 1882, Marlatt 1894. 

 Begeitader Foerster (teste Andre 1879). 3d A Comstock and Needham 

 1898, fig. 38. 



Interanal. Fig. 1, WW 1 . 



A cross-vein occurring in the anal cell of Chalastogastra, its 

 anterior end on submedius and its posterior end on the anal vein. 

 In some Braconidae represented by one, or in some cases two, 

 stubs projecting from submedius into the anal area, fig. 6. 



Synonyms: Transverse lanceolate vein Marlatt 1894. Nervus trans- 

 verso-lanceolee Andre 1879. Vena transver&o accessoria Foerster 1877. 

 Axillary transverse nervure Marshall 1885. Humeralnerv Kofcow 1901. 

 Humeralquernerv Efcslin 1912. Cross-vein of the lanceolate cell Norton 

 1867. Quernerv der lanzettf arming Zelle Ehslifc 1912. MA Comstock 

 and Needham 1898, fig. 38. 



B. HIND WINGS WITH MANY VEINS. 



Until comparatively recently systematists have paid but little 

 attention to the veins and cells of the hind wing and in most cases 

 they have given no key to their terminology. The few authors who 

 have given keys to their terminology of the hind wing have at- 

 i cmpted to analogize the veins and cells with those of the 1'on- wing 

 and have made it necessary to repeatedly use the phrase "of the 

 hind wing" which unfortunately has in a number of cases been 

 omitted leaving the reader in doubt. It is, with the hope of 

 avoiding such uncertainty and the burdensome phrase "of the 

 hind wing," that we have added the diminutives "ella" and 

 "Han" to the veins and cells, respectively, of the hind wing. In 



