28 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



Anal cell or cells. VIII and supernumbers in figures where they occur. 



The area immediately behind submedius and brachius and, in 

 all Hymenoptera in which the anal vein is absent, bounded poste- 

 riorly by the hind margin of the wing; in those Chalastogastra 

 in which the anal vein is present it forms the posterior boundary 

 of the cell. In those Chalastogastra in which the anal vein is 

 present the anal cell is of considerable taxonomic value as it is 

 either open and constricted basally, or with the interanal cross- 

 vein present (fig. 1), or contracted and closed medially, or petio- 

 late (fig. 2) . This term has been used generally for the area as it 

 occurs in Clistogastra while the closed anal cell of the Chalasto- 

 gastra has been variously designated (in America usually as 

 lanceolate cell), but inasmuch as it is impossible to determine 

 whether the anal vein has faded out or has coalesced with sub- 

 medius and brachius we prefer the above definition. 



Synonyms: Anal cell Shuckard, Cresson 1887, Cockerell and Rob- 

 bins 1910, Fernald 1906. Areola analis Andre 1879. Anal area Kirby. 

 Cellula analis Costa, Dahlbom 1845. Cellule anale Lacordaire 1834, de 

 Romand, Berthoumieu 1904. Cellula humeralis interna Gravenhorst. 

 Cellule humerale Wesmael. Area humeralis lanceolata Foerster 1877. 

 Humeralfeld Konow 1901, Enslin 1912. Humeralcelle Nielsen and 

 Henriksen 1915. H inter Schulterzelle Szepligeti 1904. Lanceolate cell 

 Norton 1867, Cameron 1882, Marlatt 1894, Rohwer 1910. Cellule lanceolee 

 Hartig, Andre 1879. Lanzettformigp Zelle Zaddach, Konow 1901, 

 Schmiedeknecht 1907, Enslin 1912. Lancetcelle Nielson and Henriksen 

 1915. Third basal cellMorley 1903. Axillary areolet Marshall 1885. 

 IstA (first anal, in Chalastogastra) Comstock and Needham 1898, Mac- 

 Gillivray 1906. 2dA (second anal, in Chalastogastra) Comstock and 

 Needham 1898, MacGillivray 1906. 3dA (in Clistogastra) Fernald 1906, 

 Bradley 1908. 



Posterior cell. Figs. 1, 2, IX. 



The area posterior to the anal vein, when present, and bounded 

 posteriorly by the hind margin of the wing. Present only in cer- 

 tain Chalastogastra. 



Synonyms: Cellula postica Dahlbom. Area humeralis postica Hartig, 

 Foerster 1877. Analfeld Konow 1901. 3dA Comstock and Needham 

 1898, MacGillivray 1906. 



Section II. Veins. 

 Costa. Fig. 1, AX'B; figs. 2, 5, 6, 8, 9, 10, AB. 



The vein on the anterior margin of wing from base to stigma, 

 in some wings enlarging somewhat before the stigma and this en- 

 larged portion has been termed parastigma. In many Clisto- 



