38 burmeister's odonata. 



Belg.— 2 — xlii, p. 989, 1876) that his description is based on the 

 "Type unique de Bunneister, actuellement coll. Hagen. Le Dr. 

 Hagen ayant eu la honte de me comniuniquer ce type precieux, qui 

 est en tres-mauvais €tat, j'ai pu le decrire avec soin et en prendre un 

 dessin exact." De Selys was, fortunately, able to describe the wings, 

 of which only the bases now remain, so that the condition of the 

 type is still worse. 



7. Agrion fiiinipeiiiie P>. P. 819. [Argia.] 

 Aus Kentucki. v. Winthem's Sammlung'. 



Oiie female in M. C. Z. with the written label " fumipeiiis Br. * 

 Kentucki", the printed label "Winthem." 



8. Aj^rion discolor B. P. 819. [Amphiagrion sauciiim B. and Ischnura verti- 



calis Say.] 



testaceum unicolor, vel dorso rubicundo vel dorso toto nigro-aeneo, 

 thorace bivittato ; alarum stigrnate pallido. Long-. 1" 9 • 



Aus Siid-Karolina ; 2 Exemplare in der Hallenser Sammlung', von 

 Zimmermann g-esendet. 



Three females at Halle, no pin-labels, stand under the pink drawer- 

 label "discolor* Carol. Zm." in Burmeister's hand. Of these three 

 one (T) is a teneral female of A. saucium Burm., recognizable by 

 the very acute, upper, outer angle of the pterostigma, and corresponds 

 to the " dorso rubicundo" of the description ; the last four abdominal 

 segments are wanting. A seccmd (J) is a 'black' female of Isch- 

 nura verticalis Say and corresponds to the "dorso toto nigro-aeneo, 

 thorace bivittato." The third female is an orange female of Anovi- 

 alagrion hastntum Say and cannot be a type, as Burmeister quotes 

 but two, and as the colors of this one do not correspond with his 

 description. 



De Selys (Bull. Acad. Belg.— 2— xli, p. 285, 1876) has placed 

 discolor as a synonym of Amphiagrion saucium Burm. Kirby 

 (Catal. Odon. p. 143, 1890) has reversed the position of these two 

 names, making saucium the synonym, presumably on the ground 

 that in Burmeister's work discolor is No. 8 and saucium No. 10. 

 Since it is now shown that Burmeister confused two species under 

 discolor, it is evident that De Selys, and not Kirby, is to be followed 

 in this matter of nomenclature. 



9. Agriou deiiticolle B. P. 819. [Ischnura.] 

 9 . Aus Mexico. 



One female (T) under the green drawer-label " denticolle * Mexico" 

 in Burmeister's hand, at Halle. (PI. I, fig. 13). 



