May, '09] nxTOMomcTCAi, XR\VS. 201 



Tachytes praedator Fox. 



Three females and three males, Lee Co., Texas (G. Birk- 

 mann). The scape and mandibles are black sometimes. The 

 femora of all the specimens before me are ferruginous for the 

 apical two-thirds. 



Tachytes mandibularis Patt. 



Female, Fedor, Texas, Oct. n, 1905 (G. Birkman). This 

 is 19 mm. long, and the femora are largely ferruginous. It 

 seems to agree otherwise. 



Tachytes pepticus Say, 



A S , Wellsville, Kansas, August 3, 1901 (S. A. Johnson), 

 is almost typical. It is in the collection of the Colorado Agri- 

 cultural College. Many males collected at Fedor, Texas, by 

 Rev. G. Birkmann. Also two females from the same locality. 

 These are not typical and may represent a distinct species. A 

 % , Boulder, Colorado, July 20, 1908 (S. A. Rohwer), had the 

 eyes in life bright green below and darker above. 



Tachytes aurulentus Fabr. 



A and 9 , Lee Co., Texas, August, 1907, and a 9 same 

 locality, Sept. 6, 1907 (G. Birkmann). The wings are much 

 darker than usual for this species, being almost black. The 

 last mentioned 9 has the anterior margin of the clypeus 

 slightly more acute at the middle and the pubescence of the 

 front is golden. 



Tachytes obdnctus Fox. 



A 9, Fedor, Texas, August, 1905, 9 Lee Co., June, 1906 

 (G. Birkmann). New to Texas. 



Tachytes distinctus Sm. 



Three females and three males, Lee Co., Texas (G. Birk- 

 mann) ; 2 females, Paris, Texas (C. R. Jones); , Wellsville, 

 Kansas, Aug. 16, 1901 ; S , Julesburg' Colo., August 4, 1899. 

 The last four are in the collection of the Colorado Agricultural 

 College. The pubescence in some of the specimens is golden 

 instead of silver)^. 



I take the opportunity to correct a mistake made by myself 

 in the ENT. NEWS, May, 1908, p. 224. The S recorded from 

 Roswell, N. M., as T. crassus Patton is a S of T. distinctus 

 Sm. So far T. crassus has not been taken in New Mexico. 



