THE CANADIAN ENTOMOLOGIST. 173 



the appendages is projected a broad inflation, narrower on tip, and just on 

 its middle a spine coming from the right, as long as the basal joint, cylin- 

 drical, sharp on tip, somewhat curvated to the right ; a much smaller and 

 shorter spine on the left side does not exceed the inflation. Abdomen 

 from below with penultimate segment as long as the others, very dark, 

 blackish ; last segment pyramidal, rounded on tip, the left side asymme- 

 trical, stronger notched. 



In the same lot of copal I received another specimen of exactly the 

 same size, but differing as follows : The whole insect has copal colours, 

 less dark, only the head is dark brown. Both antennae are only 14- 

 jointed ; the apical joint is ovoid, without any traces on tip of a broken- 

 off segment. Wings pale, but with obvious traces of a smoky color and 

 white longitudinal bands ; the discoidal cell is closed in all four wings by 

 one strong transversal vein, and two in the left anterior wing ; all wings 

 show 4 to 5 small costal transversals in the apical half, but these may also 

 exist in the other specimen, the costal margin of which is not plainly 

 visible. 



The venation is alike, but all veins not developed are indicated by a 

 series of small, darker hairs inserted in a more visible and deeper hole. 

 I have formerly pointed out that just the same occurs in the wing cases 

 of the Calopteryx nymphs. The appendages are to be seen well from 

 below ; they are alike ; the right spine is longer, less thick, bifid on tip ; 

 near by is a short, cylindrical, curvated tube, with open end ; the left 

 spine is triangular at base, the apex twisted and sharply pointed. 



One joint more or less of the antennee, one transversal more or less in 

 the wing, can of course not be a specific difference. The marked char- 

 acter of the right spine between the appendages would be of importance, 

 if it would be possible to examine the same organ in the other specimen. 

 This is not the case, and therefore the existence of a similar character is 

 at least not impossible. 



Hab. — I received both specimens forty years ago among other copal 

 insects bought from the large Drogues House Gehe in Dresden, Germany. 

 It was sold as East Indian copal. Later I discovered that all copal sold 

 at that time as East Indian copal came from Salem, Mass. It is indeed 

 probably Zanzibar copal ; this trade was then entirely in the hands of 

 Salem merchants ; the copal was brought to Salem by the extensive East 

 Indian trade of this city, and sold to Europe. 



I request the honor of dedicating this gentle species, the smallest 



