576 



U. S. NATIONAL MUSEUM BULLETIN 216 



Occasional specimens, well within the range of this subspecies, 

 have the mesopleurum mostly black as in the subspecies vicinum, but 

 have the temple a little wider than in typical vicinum. Because of 

 their wider temples and their locality, they are assigned to the sub- 

 species melanderi. 



Type: 9, 4-mile camp at Priest Lake, Idaho, August 1920, A. L. 

 Melander (Cambridge). 



Paratypes (3d 1 , 219): From British Columbia (Okanagan Valley, 

 Osoyoos, Robson, and Trinity Valley near Lumby); Idaho (4-mile 

 camp at Priest Lake); Manitoba (Teulon and Victoria Beach); 

 Michigan (Douglas Lake in Cheboygan Co.); Minnesota (Basswood 

 Lake in Lake Co., Caribou Creek in Lake Co., Clear River, Itasca, 

 and Lake Itasca); Nova Scotia (MacNob's Island and Truro); Oregon 

 (Portland); and Wisconsin (Sawyer Co.). 



Collection dates are distributed from June 15 to August 19, and 

 there is one capture on September 11, on MacNob's Island, Nova 

 Scotia. 



This subspecies is in northern coniferous forests, mostly from 

 Minnesota to British Columbia. Adults occur mostly in mid-summer. 



4. Spilopteron occiputale (Cresson), new combination 



Figure 328,g 



Arotes occiputalis Cresson, 1869, Trans. Amer. Ent. Soc, vol. 2, p. 260; cf . Type: 



d\ West Virginia (Philadelphia). 

 Arotes apicatus Davis, 1898, Trans. Amer. Ent. Soc, vol. 24, p. 366; 9 • Type: 



9, Agricultural College [=East Lansing], Mich. (Philadelphia). 



Front wing 9 to 12 mm. long; head about 0.84 as wide across mid- 

 length of temples as across eyes; punctures on metapleurum moder- 

 ately small, separated by about 1.8 their diameter; scutellum with 



Figure 281, 282. — Localities: 281 (left), Spilopteron vicinum melanderi; 282 



(right), S. occiputale. 



