NOTES ON BRACONIDE. 129 
5. Clinocentrus excubitor, Hal. 
Once bred from a Noetua; and now known from France, 
Sweden, Holland and Belgium. A single male occurred to me 
on July 20th, 1900 (a very hot day, with temperature of 89°), 
in the Bentley Woods near Ipswich, on flowers of Heracleum 
sphondylium. Marshall had two pairs from Botusfleming. 
6. Clinocentrus vestigator, Hal. 
Not yet found outside Ireland and England, where Marshall 
took it at Nunton, near Salisbury, and Botusfleming. 
7. Clinocentrus stigmaticus, Marsh. 
A single ¢ was described from ‘‘ Angleterre” in André’s 
Species in 1897. It is not represented in Marshall’s collection, 
now in the British Museum. 
8. Clinocentrus umbratilis, Hal. 
Only recorded from Ireland, England and Wales ; apparently 
very rare. The Swedish C. petiolaris, Thoms., is probably 
synonymous with this species. 
ADEMON DECRESCENS, Nees. 
This species was originally described as a Rogas; and I am 
of Haliday’s opinion (‘ Ent. Mag.’, 1837, p. 104) that the present 
genus ‘‘ Rogadibus Genuinis statura satis similis.” Later 
authors have followed Wesmael, who found A. decrescens in 
Belgium and, the next year, transposed it to the Opiides ; but 
the whole structure (with the single exception of the oral orifice) 
so exactly resembles that of the more fragile species of Alezodes 
that, upon first capturing our single species, I at once recognised 
it as a member of the Rhogadides. Its correct position will be 
determined when its hosts become known, for the Opiides prey 
upon Diptera. 
Nees took a single female ‘‘in Sisymbrio Nasturtio circa 
Sickershausen”’ and received others from Bohemia and Italy. 
Haliday knew it from the Hebrides, had seen a single English 
example and, in Ireland, found it somewhat gregarious among 
aquatic plants on the margins of rivers. I do not find it again 
recorded as British till 1872, when Marshall leaves it in the 
Rhogadides, as did Kirchner in 1867 ; but in 1890 he places it in 
the Opiides. He considered it ‘‘rare and local in England. . . 
I have seen no specimens except my own, which were taken 
formerly by sweeping Nasturtium officinale in a ditch near 
Aylestone, in Leicestershire ; at that place the insects were not 
uncommon.” The next year he gives it as ‘‘ Répandu dans 
toute Europe, mais peu abondant,’’ adding no new localities. 
There are, however, no examples in his collection ; and the only 
