176 



from the extremiticB of this line to the middle point of the posterior edge of the 

 occiput. This species will very probably be found to inhabit Indiana. 



5. Oomphus pallidus Rambnr. St. Joe River, June 8, 1900, one female. 

 R. J. Weith. 



6. Oomphm fipicatus Hagen. Elkhart, May 20, 1900. R. J. Weith. In 

 plate VI, " Dragonflies of Indiana," figs. 18 and 19 will not serve to distinguish 

 the males of Gomphus spicaius and 0. deecriptus. Seen from above the superittr 

 appendages of spicatus have a distinct median external tooth ; descriptus has the 

 appendages angulated beyond the middle, but there is no tooth. 



7. Gomphus sp. Page 294, "Dragonflies of Indiana," is a new species so( n 

 to be described by Mr. Hine. 



8. With a knowledge of the nymph of Tachopteryx thorei/i anotlier arrange- 

 ment of the genera of the Gomphinae than that employed in the "Dragonflies of 

 Indiana" becomes desirable. The arrangement of genera of the Gomphinae as 

 worked out by Selys in his " Synopsis des Gomphines" and culminating with his 

 final " Note sur la classification " in the fourth addition to the Synopsis, may be 

 employed here for the genera taken in Indiana. The genera would then stand in 

 this order: Ophiogomphus, Dromocjomphus, Gomphus, Progomphus, Hagenius, Tachop- 

 teryx, Cordulegaster. 



9. The genus Nasiaeschna hasTecently been established by Selys (Termesze- 

 trajzi fiizetek, XXIII, 1900, p. 93) for the species Aeschna pentacantha Rambur. 

 In the key to genera in "The Dragonflies of Indiana" pentacantha will run out to 

 the genus Epiaeachna. The genus Nasiaeschna is distinguished from Epiaeschna 

 by the supplementary sector between the subnodal and median sectors being 

 separated from the subnodal by one row of cells (two rows in Epiaeschna), by hav- 

 ing the face excavated, by the absence of a dorsal spine on abdominal segment 10 

 in the male, and by the superior appendages of the male being shorter and Itts 

 dilated. 



10. Aeschna multicolor Hagen. Calvert (Odonataof Baja California, p. 509) 

 has the following paragraph relating to the range of this species. "Distribution, 

 Mexico (Cordova, Baja California), California, Texas, Dakota, Colorado, Yellow- 

 stone, British Columbia (Victoria)." In Bull. Geol. Surv. Terr. 1875, p. 591, 

 Hagen says of it, "A decidedly western species." To find it in Indiana is a sur- 

 prise. The following description is found in the Syn. Neur. N. A., 1861, p. 121. 

 " Fuscous, spotted with blue, head blue ((J^) or luteous ( 9 ), front with a T spot, 

 each side terminated with yellow, and a band before the eyes, black ; thorax fus- 

 cous, dorsum each side with a stripe (interrupted or absent in the female), side?, 

 each side with two oblique ones blue (^) or yellow ($); feet black, femora 



