PROC. EJSTT. SOC. WASH., VOL. 20, NO. 8, NOV. 1918 169 



Hoplocampa occidentalis Rohwer. 



Hoplocampa occidentalis Rohwer, U. S. D. A. Techn. Ser. 20, pt. 4, 1911, 

 . p. 144, pi. 24, f. 8; pi. 25, f. 5. 



Type. Cat. No. 13479, U. S. Nat. Mus. 



Distribution. Colorado; Oregon; Placer Co., California. 



Hoplocampa orbitalis Rohwer. 



Hoplocampa orbitalis Rohwer, U. S. D. A. Techn. Ser. 20, pt. 4, 1911, p. 

 141, pi. 23, f. 3; pi. 24, f. 10. 



Type. Cat. No. 13472, U. S. Nat. Mus. 

 Distribution. Montana. 



/ 



Hoplocampa pallipes MacGillivray. 



Hoplocampa pallipes MacGillivray, Can. Ent., vol. 25, 1893, p. 239. Konow 

 Gen. Ins., fasc. 29, 1905, p. 75. 



Type. Cornell University. 



Distribution. Skokomish River, Washington. 



Hopolocampa xantha Rohwer. 



Hoplocampa xantha Rohwer, U. S. D. A. Techn. Ser. 20, pt. 4, 1911, p. 144, 

 pi. 23, f. 9; pi. 24, f. 1. 



Type. Cat. No. 13478, U. S. Nat, Mus. 

 Distribution. Ottawa, Canada. 



Genus Hemichroa Stephens. 



This genus is divisible into two groups which have been given 

 generic names. They may be separated as follows: 



Tarsal claws simple Marlattia Ashmead 



Tarsal claws cleft Hemichroa Stephens 



Subgenus Marlattia Ashmead. 



Miii-lali; a Ashmead, Can. Ent., vol. 30, 1898, p. 287. 



Marlattia Rohwer, Bur. Ent. Techn. Ser., 20, part, 2, 1911, p. 108. 



This subgenus includes only the type which was described as 

 Hemichroa laricis by Marlatt, The species erythrotlionu: which 

 was originally described in this subgenus belongs to the genus 

 Dineuridea Rohwer. 



Marlattia laricis (Marlatt). 



Hemichroa laricis Marlatt, Can. Ent., vol. 28, 1896, p. 257; Dyar, .In. X. V. 

 Ent. Soc., vol. 5, 1897, p. 28. 



