THE CANADIAN ENTOMOLOGIST 147 



ON THE SYNONYMY OF DELPHAX MAIDIS ASHM. 

 Through the kindness of Dr. L. O. Howard and the courtesy 

 of the National Museum, Washington, D.C., I have been able to 

 examine a male cotype of Delphax maidis Ashm., and can now 

 state definitely that it is synonymous with Pundaluoya simplicia 

 Distant. Unfortunately I have not been able to examine a male 

 specimen from India, but Mr. Distant has stated that the 

 Hawaiian and Indian specimens are the same species. I have not 

 seen the type of Delphax psyUoides Leth., but from the description 

 and figures I conclude that it is the same as D. maidis Ashm. It 

 is true that the figure shows no spur on the hind tibia, but this should 

 not over-ride the other characters or the fact that Lethierry placed 

 it in Delphacidae. Green's description of the habits confirm me in 

 this conclusion. 



I have now examined specimens of this species from North 

 America, Hawaii, Fiji, Australia, Amboriva, Java, Phihppines, 

 Formosa, Malay Peninsula and British India. It is also recorded 

 from Ceylon, Seychelle Islands, West Africa, Cuba, Nicaragua and 

 Brazil. Which of these places is the natural habitat I am unable 

 to say, for in the Malay Archipelago and the Philippines it lives 

 on native grasses as well as Zea mays. 



I have not seen specimens of Pundaluoya ernesti (Kirk.), but 

 from the figure and description I am unable to place it in the same 

 genus with D. maidis Ashm. I recognize Kirkaldy's genus Pere- 

 grinus as distinct from Liburnia, and therefore consider the follow- 

 ing as the correct synonymy: 



Peregrinus maidis (Ashm.) Kirk. 



Delphax maidis Ashmead, 1890. Psyche, p. 323. 



Delphax psyUoides Lethierry, 1894. Indian Museum Notes, 

 p. 105. 



Dicranotropis maidis Yam Duzee, 1897. Bull. Buft'alo. Soc. Nat. 

 Sci.. p.240; Van Dine. 1911, U.S. Dep. Agr., Bur. Ent. Bull. 93, p. 34. 



Peregrinus maidis Kirkaldy, 1904. Entom., p. 175; 1906, 

 Haw. Sugar Planters' Assn. Ent. Bull. I, p. 407; 1907, op. c. Ill, 

 p. 132; Van Duzee, 1907, Bull. Buffalo Soc. Nat. Sci., p. 43. 



Pundaluoya simplicia Distant, 1906. Faun. Brit. Ind. Rhyn., 

 Ill, p. 468; 1916, op. c. VI, p. 134. 



Honolulu, Dec. 1, 1916. F. muir. 



April. 1917 



