OF WASHINGTON, VOLUME XVIII, 1916 



two or all of these. In Chalastogastra often divided by one or 

 more cross-veins (interradii) . Where there are more than one 

 cell they are numbered from base of wing out. 



Synonyms: Radial cell Shuckard, Norton 1867, Cameron 1882, Cres- 

 son 1887, Marlatt 1894, Morley 1903, Fernald 1906. Radial areolet Mar- 

 shall 1885. Radial cellule Say 1825. Cellule radialis Andre 1879. 

 Areola radialis Haliday, Foerster 1877. Cellule radiale Saussure 1852, 

 Jurine 1807, Lepeletier 1825, Lacordaire 1834, de Romand, Sichel, Ber- 

 thoumieu 1904. Cellula radialis Dahlbom 1845, Gravenhorst, Coshi. 

 RadialfeldKonow 1901. Radialzelle Ratzeburg 1848, Hartig, Zaddach, 

 Kohl 1896, Szeligeti 1904, Schmiedeknecht 1907, Dalla Torre and Kieffer 

 1910, Friese 1911, Enslin 1912, Kieffer 1912. Radialccllar Nielsen and 

 Henriksen 1915. Marginal cellule Say 1825. Marginal cell Norton 1867, 

 Smith, Cresson 1887, Ashmead 1900, Cockerell and Robbins 1910. Areola 

 marginalis Latreille, Thomson. Margin Cell Shuckard. Area costalis 

 Fallen. Costal area Kirby. .4 pical cell Morley 1903. 1st R! (= first 

 radial) Comstock and Needham 1898, MacGillivray 1906. 2d R l - 

 second radial) Comstock and Needham 1898, MacGillivray 1906. R 2 - 

 (= third radial) Comstock and Needham 1898, MacGillivray 1906. 2dRi 

 +#, Fernald 1906, Bradley 1908. Cell IIIi + 2 (as in bees) Robertson 

 1902 a, 1902 b, 1903 c. 



Appendiculate cell. (Not illustrated.) 



The usually incomplete cell formed by the metacarpus or ante- 

 rior margin of wing and a spurious branch or extension of radius 

 beyond the end of the radial cell. Occurs in many groups but is 

 seldom of taxonomic importance. 



Synonyms: Appendicular Cell Cameron 1882. Areola appendicea 

 Hartig, Foerster 1877, Andre 1879. Cellula appendicea Costa. Cellule 

 appendicee Andre 1879. Anhangszelle Kohl 1896, Konow 1901, Enslin 

 1912. Vedhaengscelle Nielsen and Henriksen 1915. Appendiculate cell 

 Marlatt 1894. 



Cubital cell or cells. III and supernumbers in all figures when present. 



The area between the radius and cubitus, often divided by a 

 number of crossveins in which case the cells are numbered from the 

 base of the wing to the apex. In Ichneumonidac and certain 

 other Clistogastra the first abscissa of cubitus is wanting and the 

 first cubital is confluent with the first discoidal. In Ichneu- 

 monidea and Cynipoidea the second cubital is greatly reduced in 

 size and is termed areolet. 



Most writers have been consistent in designating this area and 

 have numbered the cells from the base outward as can be seen from 

 the following synonymy. In certain cases however authors have 

 definitely named certain cells by an additional word or prefix; :md 



