ON THE ODONATE AESCHNA RILEYI 

 BY PHILIP P. CALVERT 



In tlie Transactions of the American Entomological Society, 

 vol. XIX, p. 1()/+, Philadelphia, June, 180^2, I published a 

 description of a single female Odonate from Kilimanjaro , col- 

 lected by Dr. W. L. Abbott and sent by him to the United 

 States National Museum, as Aeschna RUeyi, n. sp. My more 

 detailed account of the same species has recently appeared in 

 the Proceedings of the U. S. Nat. Mus. Vol. XVIII, p. 138, 

 Washington 1895 (1896). 



Last April , when in the Museo Civico di Storia Naturale in 

 Genoa, I found three females of the same species. As these show 

 some variations in neuration, etc., from the original type, and 

 as the African fauna is receiving special attention at present, 

 I have thought it well to notice these variations. At the time 

 when the comparisons were made only my first and shorter 

 description was in my hands. The three subjects of these notes 

 are to be understood as agreeing with that description except 

 where the contrary is expressly stated. 



One female ^'SciotaUt, Scioa . IG Luglio 1887, non raro. Dr. 

 V. Ragazzi" has three hypertrigonals on the left front wing, 

 the discoidal triangle of both front wings five-celled with two 

 cells on the inner (basal) side, that of the left hind-wing five- 

 celled in an irregular way, that of the right hind-wing four-celled. 

 Front wings with 18 R 17 L antenodals, 11 postnodals. Hind 

 wings with 11 I{ loL antenodals, 14 R L3L postnodals. Total 



