142 BULLETIN 15 7, U. S. NATIONAL MUSEUM 



The fore wing in the local male at hand measures 17 mm. In the 

 two females it measures 18.5 mm. and 16.0 mm. 



STRYMON CALANUS (Hubner) 



Banded Hairstije^vk 

 Plate 24, Figures 7, 8 



Occun^ence. — Rare. Mr. Shoemaker has a specimen taken at Diffi- 

 cult Run, Fairfax County, Va., on June 20, 1920, and another taken at 

 Glencarlyn, Arlington County, Va., on June 24, 1913. There are 

 two specimens in the Schonborn collection from the District without 

 dates, and I have a much worn one taken at Silver Spring, Md., on 

 July 24, 1927. 



Remarks. — There is only a single brood a year. The insect passes 

 the winter as a caterpillar just from the ^gg which does not feed 

 until spring, or in the egg. 



Genus MITOURA Scudder 



MITOURA GRYNEUS GRYNEUS (Hubner) 



Olh-e Haikstreak 

 Plate 25, Figures 3, 4 



Occurrence. — Not rare, but ver}^ local and found only about cedar 

 trees {Juniperus virginiana) on hillsides. 



I have specimens taken on April 27 and May 4, 1930, at Cabin 

 John. There are six specimens from the District in the Schonborn 

 collection, and Mr. Shoemaker has taken it on cedar trees in Arling- 

 ton County, Va., over Free Bridge, from April 18 to May 1. In the 

 National Museum there are three specimens from Plummers Island, 

 Md., one collected by Dr. E. A. Schwarz on April 12, 1908, one taken 

 by Dr. August Busck on April 14, 1908, and the third simply dated 

 April, 1908. 



Remarks. — There are two broods, one in the last half of April and 

 early in May and the other in July. 



Genus INCISALIA Minot 



INCISALIA AUGUSTINUS (Westwood) 

 Brown Elfin 



Plate 25, Figure 7 



Occurrence. — Very local, but common where it is found. Dr. G. P. 

 Engelhardt tells me that in May, 1920, he found this butterfly com- 



