74 ENTOMOLOGICAL NEWS. [April, 



Subfamily 4. — Gomphina. 



23. Gomphus exilis Selys.— Orono, College Collection. 



24. Goinphus spinosus Selys. — Orono, College Collection. 



25. Gomphus ncBviiis Hag. — July 15th, single $ ; Chemo 

 Stream, over water. This specimen was referred to Mr. P. P. 

 Calvert, who made the following note: 



' ' This specimen agrees best with the description of G. ncevms 

 Hag. (in 4th Additions au Synopsis des Gomphines, p. 57), al- 

 though there are some slight color difference. G. n(Bvius Hag. 

 was described from a 9 from Pennsylvania. It is stated to be 

 -very near G. albistylus Hag. (4th Additions, p. 55) described 

 from a 9 from Maine, and some doubt is expressed whether the 

 two may not be one species. The ^ of neither has been de- 

 scribed. Until they are proved to be the same, this specimen 

 should stand for G. ncevius, which it resembles more than G. 

 xilbistylus. ' ' 



26. Hagenius brevisfylus Selys. — ^July 15th, single $ . Over 

 Chemo Stream. 



Tribe ni.— LIBELLULINA. 



Subfamily 5. — Cordulina. 



27. Cordulia libera Selys. — August. Single S ; over small 

 lake, Greenfield. 



28. Cordulia Uhleri Selys. — Orono, College Collection. 



29. Cordulia cynosura Say. — Orono, College Collection. 



Subfamily 6. — Libellulina. 



30. Plathemis trimaculata De Geer. — Common over small 

 trooks and ponds; August and September. 



31. Libellula \-tnaculata Linn. — Common over brooks; Au- 

 gust and September. 



32. Libellula extista Say. — ^July 15th. Common over Chemo 

 Stream. 



33. Libellula pulchella Drury. — Orono, College Collection. 



34. Leucorhinia proxinia (Hagen MS.) Calvert. — Orono, Col- 

 lege Collection. 



35. Leucorhinia intacta Hag. — ^July 15th, Chemo Stream. 

 Many pairs mating. The labium of all our specimens black, 

 with the external part of the lobes a little white. The labrum 

 cream colored. 



