No. 2326. THREE TRIBES OF ICHNEUMONINAE—CUSHMAN. 45 



the black apical joint of the hmd tarsus. There are in the United 

 States National Museum, including Yiereck's two types, ten speci- 

 mens, four females and six males, which are without doubt conspecific. 

 These show variation in the number of flagellar joints from 41 to 47, 

 the number varying directly with size. The infumation of the wings 

 is not as Viereck described it, but is perfectly normal for the genus, 

 being faint entirely across the tip of the wing with a darker spot 

 embracing the apex of the radial and upper outer corner of the third 

 cubital cells. Krieger, by inference only, says that his species lacks 

 the dark band on the first tergite; winnamanae has it, but in the 

 series of specimens it varies from broad and distinct to nearly absent. 

 In regard to the color of the apical joint of the hind tarsus in septem- 

 trionalis Krieger says nothing. 



The three characters used in the above key all show variation in 

 the series examined, the width of the face and of the vertex being in 

 the proportion of form 1:1.23 to 1:1.4. 



In addition to the type females the National Collection contains 

 another female from the type locality, Plummers Island, Maryland, 

 September 29, 1912, P. R. Myers; one male, Cabin Jolm, Maiyland, 

 June 25, 1917, E. L. Fonts; four males collected in Alabama by H. H. 

 Smith, three at Pyziton, Clay County, and the other at Coleta; one 

 female, TaUulah, Louisiana, V. I. Safro; and one male without 

 locality. 



NEOTHERONIA SEPTEMTRIONALIS Krieger. 



Neotlicroiiia septemtnonalis Krieger, Zeitschr. Hym. Dip., vol. 5, 1905, p. 305, 

 male. 



The differences between this species and winnamanae Viereck have 

 already been discussed under the latter species and need not be 

 repeated. 



Krieger 's material was from North Carolina. 



HOST LIST. 



Arachnida. 



Dictyna volupis. 



Polysphincta (Zatypota) dictynae Howard. 



Epcira sdopeturia. 



Polysphincta (Polysphincta) koebelei Howard (?). 



Epeira strix. 



Polysphincta (Polysphincta) koebelei Howard (?). 

 Polysphincta (Polysphincta) strigis Howard. 



Epeira trivittata. 

 Hymenoepimeds wiltii (Cresaon). 



