390 THE CANADIAN ENTOMOLOGIST. 



the Canadian Entomologist eariy this year the occurrence of Say's Hydro- 

 metra austraUs in Georgia and Florida. He also fails to mention its life- 

 history, which was worked out by Martin in 1900 and confirmed by myself 

 in 1904 (and again this year). 



Referring to Corixidce and Notoiiectidce, he remarks on page 199 : 

 " The complete life-history of no member of either of these families is yet 

 known, but it ought not to be a difficult matter for some patient observer 

 to add this knowledge to entomological science. In this statement he 

 echoes Dr. Howard in "The Insect Book." Nevertheless, Kirkcaldy, 

 who is an expert entomologist, tried two years in succession to breed 

 Notoneda gluiica, and did not succeed ; while I have had ova and two or 

 three nymphal stages the last four summers, and have not been able to 

 bring them beyond the second or third moult. What the condition is that 

 stands in the way is as yet obscure. On the same page he states with 

 reference to the Naticoridce : " The life history of no member of this family 

 is known." Had he consulted the Journal of the New York Entomo- 

 logical Society, Vol. XL, pp. 166 to 173, he would at once have eliminated 

 this sentence. There is a fairly detailed life-history of Pelocoris femorata 

 in those pages. His statement with regard to the Belosiomatidce, that 

 " The two largest species of this family, both common in this country, are 

 Belostoma Americanuin and Benacus griseus .   ," is misleading, for the 

 reason that in Texas and Arizona, at least, A?norgius {Belostoma, Olim.) 

 an/mlipes must occur and that in our South-eastern States we find Amor- 

 gius Uhleri, Montandon, which is very near in size and appearance to 

 A. Americanum. The figure of " A Water Scorpion, Ranatra fusca " 

 (fig. 275, p. 201), is, unfortunately, a nymph in the last instar 

 and not an adult. Ranatra has never, to my knowledge, been 

 found with aborted or rudimentary hemelytra in the adult. In addition, 

 the anterior femora are too broad for Ranatra fusca, and the figure in all 

 likelihood represents one of the undescribed Western forms in the U. S. 

 National Museum collection. 



" Galguliis " is employed on page 202, instead of the correct 

 Gelastocoris, which was used by Champion in the Heteroptera part 

 (Vol. II) of Biologia Centrali Americana, because it, unfortunately, has 

 been preoccupied in Aves for 145 years. With regard to this family, 

 Professor Kellogg says on this page, " A species of toad-bug, Galgu/us 

 oculatus (figs. 279 and 280), is common all over the country." His figures 

 do not represent oculatus, which is very fairly delineated in its salient 

 features by Professor Uiiler in the "Standard Natural History." The 



