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II 蟲舉雜 誌 第壹卷 第四號 



A NEW SPECIES OF SYMPETRUM. 



BY K. OGUMA, Nogakushi, F-E.S. JAP. 

 Kec, Oct. 14th, 1915. 

 Last summer the author had an opportunity of examining the 

 specimens oi Dragonflies collected by Mr. Okumura in Kiushiu and 

 Loo-Choo. These specimens consisted of more than one hundred and 

 fifty individuals, representing about thirty species from four different 

 families, in which a new species is found, as described in the following 

 lines. This new Dragonfly is, for the first time, recorded in brief in 

 this magazine by Mr. Nohira who collected it near Osaka and put it 

 in question as a new species ； the very specimen has Kindly been 

 placed at my disposal during my stay in Kyoto this spring. That 

 specimen was, however, not siifhciently well preserved to allow of 

 close study, and, moreover, I was, at that time, obliged to set aside 

 its identification until fresh specimens were collected. Fortunately 

 enough I have found in the collection by Mr. Okumura, a well-pre- 

 served specimen of the species in question, of which the following- 

 description has been made. 



Sympetrum speciosum sp. nov. 



Abdomen 25mm., Hind wing 33mm., Pterostigma 3.5mm. 



Head. Pale yellow, a little smoky towards the base of the frontal 

 tubercle ； labrum somewhat deeper in the same color with the black 

 anterior free margin ； labium very pale yellow, free margins blackish. 



Thorax. Robust ； frontal part brownish-yeliow, side light-yellow 

 with two black bands along the lateral sutures, the posterior band 

 broader than the anterior and divided into three arms near its vential 

 extremity, one of these arms being prolonged forwards in connection 

 with the anterior band while the remaining two prolonged hind wards 

 and downwards passing into the dark part of the ventral surface of 

 the thorax. 



