176 TENTHKEDINID^. 



50. Monophadnus hudsonicus. 

 (Plate VIII. fig. 7.) 



Exp. al. 5 lin., long. corp. 2 lin. 



Black ; antennae rather short and stont ; collar, tegulee, segments 

 3-6 of abdomen above, and a line down the middle beneath rufo- 

 testaceous. Legs rufous, the four front legs paler than the hind 

 pair ; coxse and base of femora black. Wings hyaline. 



This species must be closely allied to M. ruhi, but appears to 

 differ in the coloration of the legs and abdomen. 



Hah. Hudson's Bay. 

 a. $ . (Type of species.) St. Martin's Falls, Albany River. Dr. Barnston. 



51. Monophadnus nigellus. 



Selandria nigella, Cress. Trans. Amer. JEnt. Soc. viii. p. 12 (1880). 

 Hah. Nevada. 



52. Monophadnus medius. 



Selandria medius, Norton, Proc. Ent. Soc. Phil. iii. p. 9 (1864) ; id. 

 Trans. Amer. Ent. Soc. i. p. 250 (1867). 



Hob. New Jersey. 



53. Monophadnus irrogatus. 



Selandria irrogata, Cress. Trans. Amer. Ent. Soc. viii. p. 13 (1880). 

 Hah. Colorado. 



54. Monophadnus tiliae. 



Selandria tiliae, Norton, Proc. Post. Soc. viii. p. 221 (1861) ; id. 

 Trans. Amer. Ent. Soc. i. p. 250 (1867). 



Hah. North America. 



a. $. 



55. Monophadnus caryae. 



Selandria caryae, Norton, Packard's Guide, p. 224 (1868) ; id. Trans. 

 Amer. Ent. Soc. iv. p. 83 (1872). 



Hah. Connecticut. 



56. Monophadnus longipennis. 



Selandria longipennis, Norton, Trans. Amer. Ent. Soc. iv. p. 84 



(1872). 



Hah. Mexico. 



