30 mi; i.MM.wi be mail: of the odonata. 



suture short, oblique laterally, widely notched at the margin; two blunt 

 tubercles in the middle; basal pari of mask very little longer than broad, 

 produced anteriorly in a very oblique angle ; palpus equilateral, with seven 

 strong interlocking triangular teeth; prothorax aboul as broad as occiput, 

 side angles narrowed, bent up; wing covers reaching 7th segment; the 

 shape of the abdomen looks rather unusual, and is mentioned only as it is 

 exactly the same in all specimens; about three times longer than broad, 

 truncate at tip, sides parallel, bulging out a little roof-shaped on the basal 

 half; the sides much bent down; segments equal, the last very short 

 annular: side margin sharp, ciliated ; lateral spines on 8th and 9th; very 

 short and small on 8th : about as long as the segment, fiat, sharp, slightly 

 incurved on tip on 9th; dorsal hooks on 4th (perhaps on 3d) to 9th seg- 

 ments, a little larger on the three last, much bent backward, above hairy, the 

 sharp tip exceeding the segment; appendages as long as the two last seg- 

 ments, longer than the last lateral spine, together longer than broad at the 

 base : inferiors sharp on tip, a little longer than the median, which above is 

 covered on the male in the two basal thirds by an inflation cut square at tip ; 

 laterals shorter, pyramidal, sharp ; ventral sutures convergent to segment 7, 

 then straight ; the 9th ventral segment a little larger ; space between the 

 sutures larger than the lateral spaces; the whole inferior face of abdomen 

 very concave ; legs thin, long ; hind femurs reaching half of 8th segment; 

 all tibiae with long hairs; first joint of tarses short. 



Among the two or three species known from Japan, there is none to 

 which this belongs ; the wing covers show a black neuration, but nothing 

 which would resemble the pattern of Somat. marginata Selys. It is not 

 obvious whether the nymphaj are nearly full-grown, as the genitals are 

 hardly visible, except the basal inflation of the dorsal appendage of the male, 

 which allow r s the decision that both sexes are among the lot, three males and 

 two females. 



18. CORDULIA METALLICA V. L. (Raised.) 

 Plate V. Fig. 4. 



Vander Linden. Selys, Revue, p. 69. 

 B Stett E. Zeit, Vol. XIV. p. 263, no. 8. Brauer, Neur. Austr., \>. xv. 



Nympha in alcohol, and two skins from Vienna, Austria, raised by Dr. 

 F. Brauer, the types of my former description ; two skins from Apken, near 



