14 University of Michigan 



Family LYGAEIDAE 



Lygaeiis kahuii Stal, subsp. kalinii Stal, mihi. 



B. C. — Revelstoke, Oct. lo, 1917 (M. H. R.) ; \'ernon, June 

 10, 1918 (R. C. T.). 



In describing kalinii, StaP- distinguished three color varieties, 

 which he designated a, h, and c. In spite of Stal's clear descrip- 

 tion kalinii and turciciis Fabricius were much confused until 

 ]\Iontandon published a paper^^ in which he reemphasized the 

 distinguishing characters of the two species, redescribed (with- 

 out naming) the three varieties of kabnii Stal, and added an- 

 other which he called melanodermus. 



After an examination of extensive materials, kindly sent 

 by H. G. Barber, E. H. Gibson, and others, and some discussion 

 of the matter in correspondence, especially with Barber, I am 

 led to the conclusion that there are two distinct geographical 

 races of kahnii, which may be discriminated as follows : 



Subsp. kalniii Stal (typ.) Western race. jMembrane of 

 hemielytra with two discal white spots and with a broad white 

 margin; red band between corium and membrane strongly 

 narrowed at middle ; general form of body usually rather nar- 

 row, sides of body more nearly parallel. Texas, Arizona, Kan- 

 sas and westward. 



Subsp. angustomarginatus subsp. nov. Eastern race. 

 Membrane usually without discal spots, rarely with small ones, 

 white margin extremely narrow or rarely absent; red band 

 between corium and membrane broader, almost or quite as 

 wide as that between corium and clavus ; form usually a little 

 broader, the sides more strongly arcuate. Texas, Kansas, 

 Wisconsin, and eastward. 



These two subspecies can always be distinguished by a dif- 



"Enum. Hem., 4, 1874, p. 107. 



i^Lyg. exot., Ann. Soc. Ent. Belgique, Vol 37. 1893. PP- 399-4o6. 



