PROC. ENT. SOC. WASH., VOL. 23, NO. 5, MAY, 1921 109 



them for the hairs covering the surface. Two sterno-pleurals, 

 the front one sometimes very weak. 



Four males from Mt. Moscow, Idaho, July 25, 1920, R. C. 

 Shannon, collector. Deposited in the collection of U. S. 

 National Museum. 



The following note on the habit of this species was given to 

 the author by Mr. Shannon: "Occurs near summit of Moscow 

 Mountains (Cedar Mountain of government maps, a name not 

 in local use) where the slope is moist and there is a heavy 

 growth of cedars. The females may be collected by sweeping 

 the undergrowth but the males are found strutting about on the 

 fallen logs, displaying their charms as proudly as the partridge 

 on the log in the drumming season." 



THE MALES OF THE ICHNEUMONID GENERA MYERSIA AND 

 THAUMATOTYPIDEA, WITH DESCRIPTIONS OF NEW SPECIES. 



(HYM.) 



BY R. A. CUSHMAN-, U. S. Bureau of Entomology. 



Among the undetermined Ichneumonidae in the National 

 Collection I have recently found what I am confident are the 

 males of these two anomalous genera together with an undes- 

 cribed female Myersia, and another new species of that genus 

 has been received from C. W. Johnson of the Boston Society of 

 Natural History. 



As pointed out in an earlier paper 1 these two genera should be 

 referred to the Stilpnini. 



Genus MYERSIA Viereck. 



The two new species of this interesting genus described below 

 extend the known range of the genus to Maine and British 

 Columbia, and double the number of known species. The 

 females may be separated by the following key: 



Key to females. 



1 . Temples broad, flat and nearly straight behind eyes; first tergite increasing 



gradually in width from base to apex, the spiracles not prominent; a 

 large species, 6 mm. ....grandis, new species. 



Temples narrow, convex and receding; first tergite increasing suddenly in 

 width beyond the prominent spiracles; smaller species... ...2. 



2. Pale rufous .. pullida Cushman. 

 Black ...3. 



3. Subapical flagellar joints fully as long as thick; postpetiole at apex little 



more than twice as wide as petiole... jo/insoni, new species. 



Subapical flagellar joints thicker than long; postpetiole at apex nearly 

 three times as wide as petiole laminata Viereck. 



iProc. U. S. Nat. Mus., vol. 55, 1919, p. 521. 



