24 University of Michigan 



7. Hetcragrion dorsale Selys 



This species is known from a single male from Nova Fri- 

 burgo, Brazil, in de Selys' collection. In the key to males of 

 group I and 2 it will run out to triangularc and bcsclikii; it has 

 head markings similar to triangularc, and dorsum of thorax 

 similar to bcscJikii, Ijut the prothorax is almost all black. 



8. Hetcragrion ochraccnm Hagen 

 Figure 19 



This species was described (de Selys i) from both sexes 

 from Nova Friburgo in the collections of Burmeister, Hagen 

 and de Selys. At the present time only a single female is in 

 Hagen's collection. The labels on this specimen are interest- 

 ing: there is a small written label "Heyer"; a large written 

 label "Argya cinnamomca female Hagen"; another written 

 label "H. ochraccnm female"; a written black-bordered label 

 "//. ochraccnm Hag." ; and a small printed label "Hagen", 

 De Selys ( i ) has Heyer's name following Hetcragrion cin- 

 namomcnin, but he states that the female of cinnamomeum is 

 unknown and later (2) he makes cinnamonicnni a synonym of 

 anrantiacnui. For further discussion of this point see text 

 under ciiniainoincnm. 



The female character, "un tubercle renfle derriere chaque 

 oeil sur Tocciput, que est jaune", emphasized by de Selys 

 (or Hagen), I do not understand. There is nothing peculiar 

 in the head of the female specimen in the Hagen collection 

 labelled ochraccnm by Hagen. Otherwise I believe this speci- 

 men is the one on which the description (de Selys i) was 

 based. The hind lobe of the prothorax is not in condition to 

 figure; it has wide wangs, similar to figure 142, but with the 

 edges convex. There is a rounded dark central area. 



