British Dragonflies. 



Date. 



This Dragonfly seems to have been oftenest taken in 

 England in August and September. It is out, however, 

 at least b}- the middle of Jul}-, and Mr. H. Double- 

 day speaks of its being found in October. In 1898 I 

 took an immature male near Sandwich on August 20, 

 although many specimens on the same day were much 

 worn. 



Habits. 



Its colour might cause this insect to be confused 

 with vS. striolatuiii, but the crimson tint is much richer 

 and more pronounced than in the common species, 

 and it is not much larger than 6". scoticinii, which 

 it resembles in shape. It has a short, jerky flight, 

 and often settles. Though restless and easily startled, 

 yet, after being struck at and missed, it will often keep 

 returning to the same spot. It rests sometimes with 

 wings bent down over its sides, as has been mentioned 

 of other species of the genus. 



Migration. 



Perhaps this species sometimes visits us from the 

 Continent, and possibly 1898 may have witnessed such 

 an immigration on a small scale with ^. fiaveolum. 



found, and the fact that they belon<^ed to that species, and not to 

 sanguineum was clearly established. The identity of the nymph was dis- 

 covered, unfortunately, only after the sheet containing the account of 

 stfiolatu7n had gone to press, and so too late to enable the 

 description of the nymph to be removed to its proper place on ]>. 74. 

 This discovery will also necessitate an alteration on p. 42. The doubtful 

 diagnosis of the nymph of striolatiim must be ignored, and that of 

 sangiiineujn below, which is also queried, must be lead as belonging to 

 itriDliili/iii. 



