In 1824 I was able to notice only two species as British, but now 

 there are five that have been recorded as inhabitants of this Island. 



1. Ibis Tab. (?.— Titanus Tab. ? .—Curt. B. E. pi. 26. (?. ? .— ma- 



culatus Laf. 



The extraordinary disparity of the sexes led Fabricius into the 

 error of designating them as two species, and Latreille has given 

 them a third name. 



This beautiful but sluggish species is evidently attached to the 

 banks of rivers, where it sometimes occurs in great abundance, and 

 after floods large masses of the males have been found sticking to 

 culms of grass, on the banks of the Severn at Bridgenorth the end of F 

 May ; and Mr. Bird gave me a conglomerated body of the females, 

 so closely packed as completely to conceal the catkins or fruit of f 

 the Alder to which they adhered. I have taken the female near 

 Slaughter in Gloucestershire in June ; Mr. A. Cooper found it the 

 same month upon willows near the head of the river Darent : it 

 has also occurred in Derbyshire. 



2. marginata Fab. — Atherix Doii, Brit. Ins. 16.pl. 549. — Meig. 



tab. 15. f. 27. 28. 

 On the 21st June I took both sexes resting upon hazel leaves near 

 Ambleside. It has also been observed on the borders of Darent- 

 wood and in Devonshire. 



3. crassicornis Panz. 105. 10. — Meig. tab. 15. f. 23. 29. 30.— gri- 



seola Fall. 

 The only specimen I have seen was captured in Scotland, I be- 

 lieve in July. " It is common enough in Switzerland in June."— 



Macq. 



4. meleena Hoff.—Meig. 2. 109. 



Said to have been taken in the neighbourhood of London. 



5. unicolor Curt. Guide. 



Jitt/^cinereous, sparingly clothed with longish pale hairs: antennae 

 blackish, 3rd joint reniform : eye reddish-brown: thorax ob- 

 scurely striped: tibiae lurid and subochreous towards the base: 

 wings slightly fuscous, 3rd costal cell a little darker : halteres 

 ochreous : length 3 lines. 



I have taken three specimens, one at Mickleham the end of June,; 

 but do not know the female. 



The plant is Anthemis Cotula, Stinking Chamomile. 



\i.. 



