98 NORTH AMERICAN MYRMECOPIIILA (oRTHOPTERa) 



Myrmecophila pergandei Bruncr 



1884. Mynnecophila pcrgnndei Bruner, Can. Ent., xvi, p. 42, figs. 4a and 4b. 



[ cf 9 • Atlantic States from Maryland southward.] 

 1912' Myrmecophila pergandei Rehn and Hebard, Pro^ Acad. Nat. Sci 

 Phih 1912. p. 128. (Single type fixation.) [?; Washington, District 

 of Columbia. Host = Catnponotus herculeanus pennsylvanicus DeGeer.] 

 The type is in the Hebard Collection, type number 202. 

 The present species develops the largest size of the species 

 f„inul in North America. Very close affinity to this insect is 

 shown Ijy M. oregonensis Bruner and M. manni Schimmer. It 

 is indeed possilile that these may eventually prove to be races 

 of pergandei. Nearest agreement is shown by oregonensis, which 

 occurs on the Pacific Coast, that insect distinguishable by its 

 normally concolorous pronotal spots and slightly longer caudal 



metatarsal spurs. 



Measurements {in ndllimeters) 



Length 



Leni>th Width Length Width of 



-71 of of of ot caudal 



body bodv« caudal caudal meta- 



femur femur' tarsus 



Washington, District of Colum- 

 bia, pam////«' 2.18 1.29 1.36 .88(X1.56+) .68 



Balsam, North Carolina 4.76 2.52 2.65 1.63(X1.63— ) 



Hondersonvillc, North Carolina 2.92 1.56 1.43 1.02 (X 1.42— ) .75 



Corbin, Kentucky 3.6 2.11 2.31 1.43(Xl.61+) 1.34 



South Bend, Nebraska 3.54 2.04 1.84 1.29 (Xl.4.3— ) 1.09 



South Bend, Nebraska^ 4.35 2.52 2.38 1.56(Xl.52 + ) 1.43 



Length 

 of 

 9 ovi- 



positor 



Washington, District of Colum- 

 bia, <2/pe 4.15 2.58 — 2.11 



Wa.shington, District of Colum- 

 bia, paratype 3.87 2.52 2.31 1.52 ( X 1.52— ) 2.04 



Clayton, Georgia 2.52 1.56 1.36 .88 ( X 1.54 + ) 1.29 



Posey County, Indiana 2.52 1..56 1.36 1.02 1.29 



Po.sey County, Imliana 3.4 2.24 2 1.26(X1.6— ) 1.56 



South liend, Nebraska 3.54 2.24 2.04 1.36 (X 1.5 ) 1.9 



Soiitli ii.-nd, Nebraska^ 4.69 2.72 2.52 1.5 (Xl.68) 2.24 



" Taken across second dorsal abdominal segment. This is slightly greater 

 than the pronotal width in males, much greater than that dimension in females. 

 ' Number of times width of caudal femur is contained in its length. 

 " [.largest and smallc!st males measured, of twenty from this locality. 

 " Largest au<l smallest females measured, of eleven from this locality. 



