Oguma, The Japanese Dragonfly-Fauna of the Family Libellulidae. 9g 



proximally into the basal blackline on Vertex ; the margins of 

 clypeus and labrum as well as the labial lobes smoky. 



Thorax: light yellow with streaks of black color like the 

 oase of female of the preceeding species , but the yellow part 

 between the frontal and the first lateral black streaks very widened 

 below the scapula ; w i n g s hyaline , basal area slightly tinged, 

 n e r V u r e s smoky brown ; pterostigma brown ; legs black 

 except all the coxae and trochanters and a small part of femur 

 in the first leg. 



Abdomen: slender, showing some resembling shape to tlie 

 preceeding species, but very different in coloration ; all the Seg- 

 ments black , only the basal ones being someAvhat brownisli and 

 with yellow patterns as follows : a streak on the bind margin 

 of the first segment ; on the second segment a similar streak at 

 the middle, and a pair of small elongated spots near the bind 

 margin , the larger part of the side mostly yellow though being 

 crossed by an oblique black streak ; on the third segmont the 

 part proximal to the carina yellow and at side this yellow part 

 being shortly surpassed the carina distally , segments 4*^ to 8*'' 

 with a pair of small triangulär yellow dots at the proximal end 

 of each segment , segment 9 and 10 entirely black ; upper anal 

 appendages nearly so long as the 9*'^ segment and tlie lower 

 appendage slightly shorter than the upper, both of them yellowish, 

 but smoky in their distal halves. 



F e m a 1 e : unknown. 



Nom. Jap. : M a d a r a - n a n i w a - t m b o. 

 Loc. : Kii (Honshin, I s s h i k i). 



The specimen of this delicately formed species came in my 

 band by the kindness of Mr. Isshiki from Kii ; the preceeding 

 species is also known to me from that locality. Unfortunately 

 the specimen is the male which is dated 1907 , and the pre- 

 servation is not so good that I could scarcely examine the details 

 of genital organ. The size and form is very like S. gracile, but 

 the coloration of the body shows resemblance to it. 



Sympetrum eroticoides sp. nov. (PI. 11, Fig. 12.) 

 Abdomen 22 — 23 mm ; bind wing 22 — 25 mm ; pterostigma 



2 — 2,5 mm. 



F e m a 1 e. Closely allied to S. erotica, but much sinaller in 



size and easily distinguished by the following points. 



1. The frontal black dots very faint. 



2. The vulvar scale intensively prolonged , far surpassing 

 the tips of the anal appendages , tapered towards the tip and 

 with a notch at the extremity which is not so deep. 



