PHILIP P. CALVERT 381 



1899. Id., Odonata Ohio, 46, fig. 13 (cfapps.) (Ohio). 



1900. WiUiamson, 24th Rep). State Geol. Indiana, 276, pi. v, figs. 23, 24 



(cf^apps.) (Simonton, Round and Shriner lakes, Indiana). 



1900. Calvert, 27th Ann. Rep. N. Jersey State Board Agric. 1899, 69 (Clemen- 

 ton, New Jersey). 



1903. Calvert, Ent. News, xiv, 35 (Lake Hopatcong, New Jersey). 



1903. Needham, Bull. 68 N. York State Mus., 258, pi. 19, fig. n (c^apps.) 

 (Illinois). Calvert, t. c, 277 (Black lake. SulHvan County, X. York). 



1908. Muttkowski, Bull. Wisconsin Nat. Hist. Soc, vi, 78 (Little Cedar 

 Lake, Wisconsin). 



1908. Needham, Rep. Geol. Surv. Michigan 1907, 265 (Walnut Lake, 

 Michigan). 



1911. Muttkowski, Bull. Wisconsin Nat. Hist. Soc, ix, 35 (North Hudson, 

 St. Croix County, Wisconsin). 



1913. Davis, Journ. N. York Ent. Soc, xxi, 17 (Yaphank, New York). 



1914. Williamson, Ent. News, xxv, 446 (Wister, Oklahoma). 



1916. Howe, Psyche, xxiii. 14 (Concord, Mat^sachusetts). 



1917. Howe, P.syche, xxiv, 50 (Moultonboro, New Hampshire). 



1917. Garman, Bull. lUinois State Lab. Nat. Hist., xii, 550, pi. Ixxi, figs. 186, 

 193 (cTapps.) (Lake Villa, Ilhnois). 



1917. Howe, Mem. Thoreau Mus. Nat. Hist., ii, 18, fig. (cf apps.). 



1918. Howe, t. c, 39 (West Peabody, Brookline and Bedford, Massachusetts). 



1919. Howe, t. c, 65 (Wakefield, Mass.). 



cf . Superior appendages in profile view, with the apical margin one and 

 one-half times as long as the inferior margin, convex; in dorsal view, the 

 intero-inferior lamella reaching beyond the level of the supero-internal sub- 

 apical hook. 



Nasus black, its margins and transverse spots or stripe on the disk yellow or 

 orange. 



Frons: pale color of the anterior surface sometimes reaching the small 

 yellow or orange spot immediately anterior to the median ocellus and indent- 

 ing the black of the superior surface more deeply than in pollutum. 



Pale postocular spots not confluent with the pale color of the rear of the 

 head. 



Middle prothoracic lobe in dorsal view with l)lack usually predominating, a 

 spot each side and often also a pair of short submedian lines or stripes, yellow or 

 orange. 



Width of black mid-dorsal thoracic strijie .28-.67, of jiale antehumeral 

 .35-. 7, of black humeral, from a mere line to. 28 mm. 



Second lateral thoracic suture with a black stripe on its uppermost fourth 

 or fifth only. 



9 . Lateral end of mesostigmal lamina not margined with the black of the 

 humeral stripe but having a I)lack spot on itself. 



Mesepisternal tubercles of varj-ing size present, at the antero-mesal angle 

 of the pale antehumeral stripe, in some almost as well marked as in signalutn. 



TRANS. AM. ENT. SOC, XLV. 



