March, 1922.] Davis: Cicadas of Virginia. 45 



20 miles south of the river. On August 19, after a cold snap, Col. 

 Robinson found ten specimens of linnei lying along a shady part of 

 the road overhung by large trees between Spear's and Pluet's moun- 

 tains. On August 16, 1 921, the writer heard many singing at West 

 Hampton, near Richmond. 



This is one of the most forest-frequenting of the cicadas, but its 

 presence may be known by its wavey song, which may bo rendered 

 cegcr, zeger, zeger, of rather even tone and continued for a short time. 



5. Tibicen canicularis (Harris). 



iMgured in Journal, N. Y. Entomological Society, March, 191 6, 

 PI. 3, fig. 2, and September-December, 1918, PI. 7, fig. 2. 



A dead male, without a head, was found on Bald Knob, Bath 

 County, 3,900 feet, August 19, 191 7, and kindly presented to the writer 

 by Mr. Morgan Hebard, who states that it was found " in low scrubby 

 oak forest bordering the bald." The specimen belongs to this species, 

 as the uncus seen in profile is differently shaped than in davisi. (See 

 Entomological News, April, 1907, PI. 3.) This is a common species 

 to the north in Pennsylvania, New Jersey, etc., but how far south it 

 extends can be determined only by future collecting. 



This insect has a piercing, high-pitched song, the shrill zing lasting 

 but a short time. It is not loud, as the insect is small. 



6. Tibicen davisi (Smith & Grossbeck). 



Figured in Journal, N. Y. Entomological Society, March, 1916, 

 PI. 3, fig. 3, and September-December, 1918, PI. 7, fig. 3. 



Tappahannock, September, 191 5, two males, four females, October 

 4, 1915, male, and August, 1916, female (Dr. Henry Fox) ; Newport 

 News, August 10, 1889, male, Otto Heidemann collection and labeled 

 "Cicada canicularis Harris var. det. by Uhler"; Lynnhaven, October, 

 1917, three males, twelve females (A. H. Helme) ; West Hampton, near 

 Richmond, August 17, 1921, female on trunk of pine and recently 

 emerged. On the trunk of the same tree and elsewhere in the vicinity 

 on pines there were a number of empty pupa skins of this species, but 

 they w^ere not as plentiful as in the same locality in August, 1916. In 

 Nelson and Buckingham counties, what we have considered as davisi 

 has been heard on several occasions singing" in the pine woods. One 

 was heard singing near Spear's Mountain as early as June 21 in 1919, 



