286 THE ENTOMOLOGIST. 



In addition to these, two specimens of Anax imperator, 

 Leach, were seen, one at Shenley, Herts, on July 29th, the 

 other (a male) on August 4th, at Framfield, in Sussex. 



Odonata Observed during the Summer of 1910. 



Very few Odonata have been observed this season (1910), 

 owing to the small amount of collecting which was carried out. 



1. Libellula depressa. — Common at Shenley, Herts, on June 

 26th. A single male was taken at the same locality on July 14th. 



2. Anax imperator, Leach. — Very common at Shenley on 

 June 26th. The male frequently settled in the grass at the side 

 of ponds. A female was captured ovipositing. Two males were 

 seen on July 14th. 



3. Mschna ci/anea. — A single male on July 14th, at Shenley. 



4. Calopterijx virgo. — Immature specimens were abundant at 

 Woodstock, near Oxford, on May 28th. 



5. C. splcndetis, Harr. — Immature specimens were also 

 abundant in the same locality as the last species. 



6. Erythromma naias, Hans. — A few were captured at Shenley 

 on July 14th. The insect was common on June 26th. 



7. Pyrrhosoma nymphida. — A few specimens were obtained, 

 far from water, at Woodstock, on May 28th. 



8. Ischnura elegans. — Common at Shenley in June and July. 



9. Agrion puella. — Abundant at Shenley in June and July. 



10. Enallagma cyathigerum. — Common at Shenley in June 

 and July. A blue female was taken on June 26th. 



I was unable to visit the Somatochlora metallica locality in 

 Sussex this year, and so I have not been able to make a third 

 observation of the insect. 



\ 



DESCRIPTIONS OF THREE NEW SPECIES OF 

 ODYNERIN.E FROM JAPAN. 



By p. Cameron. 



.^ Rhynchium hrevilineatum, sp. n. 



Entirely black, except for a short narrow white line at the eyes 

 opposite the antennae, and the spurs which are testaceous ; the eye 

 incision, face and clypeus, densely covered with longish white 

 pubescence ; the ventral surface with shorter pubescence, the back of 

 abdomen with a white silky pile ; wings violaceous, the nervures 

 black ; the tegulae black and shining. Clypeus a little longer than 

 wide, the apex with a shallow rounded incision ; sparsely, distinctly, 

 but not strongly punctured ; the upper part of the head and thorax 

 much more strongly and closely punctured, the post-scutellum 

 coarsely rugosely punctured, its apex obliquely narrowed from the 



