444 PROCEEDINGS OF THE ACADEMY OF [April, 



to extend from the Huachuca Mountains, south-eastern Arizona to 

 the central San Joaquin Valley of California (Riverdale, Raymond 

 and Fresno). It is very probable that Saussure and Zehntner's New 

 Mexican record belongs to this species, in which case its range is carried 

 eastward some distance. The only dates on material are in July and 

 August. 



Remarks. — This is one of the most interesting species of the genus 

 seen by us, its supra-anal characters in the male being quite peculiar. 

 The real relationship of the female has, as witnessed by the references 

 to Saussure and Zehntner and the present author, been entirely 

 misunderstood, and the examination of the male enables us to assign 

 it to a position apart from the interrelated uhleriana group. Saussure 

 and Zehntner's Ischnoptera uhleriana (vide supra) was a composite, 

 not including the true uhleriana. and it is impossible to assign the 

 localities to the respective components. 



Specimens examined. — Six; four males, one female, one immature 

 individual : 



Huachuca Mountains, Ariz. One male (type). (U. S. N. M.) 



Palmerlee, Ariz. One female (type), one immature specimen. 

 (Brooklyn Inst. Arts and Sci.) 



Fresno, Cal. One male. (U. S. X. M.) 



Riverdale, Cal. One male. (U. S. N. M.) 



Raymond, Cal. One male. (Morse Collection.) 



Ischnoptera borealis Brunner. 



1865. I[xchno ptera] borealis Brunner, Xouv. Syst, Blatt., p. 133. [North 

 America.] 



1892. Ischnoptera borealis Osborn, Proc. Iowa Acad. Sci., I, pt. 2, p. 117. 

 [Central Iowa.] 



1893. Ischnoptera boreal is Brunner, Publ. Nebr. Acad. Sci., Ill, p. 21. [East- 

 ern Nebraska.] 



1903. Ischnoptera uhleriana Blatchley (not of Saussure, 1S62), Orth. of 

 Ind., p. 184. (Part.) [Crawford, Vigo, Putnam, Marion, Kosciusko 

 and Lake Counties, Indiana.] 



1905. Ischnoptera borealis Rehn, Trans. Kansas Acad. Sci., XIX, p. 221. 

 [Clark County, Kansas.] 



Description. — cT. Size small; form elongate-ovate; surface glabrous. 



Head hardly projecting cephalad of pronotum, interspace between 



eyes narrower than that between antennae; antennae reaching slightly 



beyond apex of tegmina. Pronotum transverse ovate, greatest 



length contained one and one-third to one and one-half times in 



greatest width, which latteris slightly caudadof middle, margin cephalad 



of same regularly arcuate, slightly subtruncate dorsad of head, lateral 



angles very broadly rounded, caudal margin very slightly arcuate; 



disk deplanate with distinctly declivent, lateral portions, oblique 



