SYRICHTHUS. 
361 
three small yellowish ochreous spots near the hind margin and a 
continuous band of smaller spots towards the base. Under side : 
Fore wings as above, but the ochreous spots are larger. Hind 
wings reddish brown, with two large central silver spots and some 
smaller ones near the base and the hind margin. Marginal fringes 
orange ; head and collar yellowish orange ; thorax dark brown ; 
abdomen black, with an orange anal tuft. Habitat, South-Eastern 
Siberia (Kiachta). 
NOETH AMEEICAN SPECIES OP HE8PEEIDM ALLIED TO THOSE 
OF THE PAL^AECTIC EEGION. 
The Nearctic Region is numerically richer in Hesperidce than 
the Palsearctic, and several genera are represented of which no 
species occur in the European region. 
The genus Spilothyrus is not represented in North America. 
Syriclithus Oneko, Scudder, Proc. Ess. Inst. iii. p. 176, 1862. 
S'. Hegon, Scudd. loc. cit. — Both these inhabit the States. 
S. Wydanot, Edw. Proc. Ent. Soc. Phil. ii. p. 21, 1863. 
Habitat, Washington. 
S. Ricara, Edw. loc. cit. iv. p. 203. Habitat, Colorado. 
S. Ridingsii, Beak, loc. cit. p. 151 (1866). Habitat, Colorado. 
The last three species are placed between S. Phlomidis and 
Orhifer in Mr. Kirby’s Catalogue. 
S. Oileus, Westwood and Humphreys’ Brit. Butt. pi. 38 (1841). 
Hesperia Syriehthus, Lat. Ency. Meth. ix. (1823). — This species 
was erroneously accounted British, and is described as such by 
Westwood and Humphreys ; it inhabits the Southern States of 
North America. 
S. Euralis, S. Ccespitalis, and S. Scriptura, Boisduval, Ann. Soc. 
Ent. Fr. 1852, p. 311-313. — All inhabit California. 
The following species of Nisoniades occur in North America : — 
N. Briso, Boisd. Lee. Lep. Amer. Sept. t. 66 (1832), &c. 
Habitat, the United States, 
3a 
