412 Materials for a Monograph 



every synonymical reference. Of the work of Stoll, I 

 have only been able to make a hasty examination, with- 

 out the opportunity of direct comparison with specimens ; 

 and the references to Palisot de Beauvais are not so com- 

 plete as they would have been had I ever seen a perfect 

 copy. In my references to Harris's Report, I have quoted 

 the last (third) edition only, because it is better known, 

 has illustrations of many species, and there has been no 

 essential alteration in the text of the three editions. To 

 those who would not otherwise understand the claim of 

 prior description in some cases, I would say that the first 

 edition was published in 1841. I have also made full ref- 

 erences to his "■ Catalogue of the Insects of Massachu- 

 setts," (published in 1835, in Hitchcock's " Report on the 

 Geology, Mineralogy, Botany, and Zoology of Massachu- 

 setts," and also in a smaller volume extracted from it, 

 under the title, " Catalogue of the Animals and Plants of 

 Massachusetts,") not because the names given there have 

 any value in questions of priority, but because Dr. Harris 

 had sent away many collections correspondingly labelled. 

 To prevent misunderstanding, I may state that where 

 I have not indicated the number of specimens examined, 

 it is to be taken for granted that I have seen a consider- 

 able number ; and where no reference is made to the 

 sexes seen, I have examined both. The measurements 

 given have been, so far as possible, average measure- 

 ments. The length of the body has been given as a 

 straight line, connecting (in the natural attitude of the 

 Orthopteron) the tip of the vertex and the extremity of 

 the abdomen — excluding the ovipositor in the females of 

 Gryllides and Locustaria?, and including the inarticulated 

 abdominal appendages in the males ; the length of the 

 ovipositor is given as a straight line, connecting its tip 

 with the point of junction of the upper and lower'valves 

 at its base. 



