NOTES ON HYMENOPTERA. 25 



seek such protection to guard against the consequences 

 attendant upon the jiolent winds, and driving rains, to which 

 they must be subjected. The Formica fusca usually con- 

 structs its nests in banks ; sometimes it is found in decaying 

 stumps of trees, and in hilly districts and exposed situations, 

 I have, but rarely, found it under stones on the Cornish 

 coast. Myrmica ruginodis is very common in Lundy 

 Island ; both the species of Vespa were plentiful in one 

 sheltered spot where a quantity of umbels were growing, 

 but I did not see one in any other situation. 



Colletes succincta was found, as usual, on the flowers of 

 the heath ; all the Salicti were on the yarrow, as well as 

 the three species of SpJiecodes. 



On my first excursion to Lundy I made, as I fully be- 

 lieved, my best capture of the season, Haliclus quadrifasci- 

 atiiSf but only the male sex ; this induced me to make a second 

 visit, in the hope of securing the females ; in this I failed, 

 but I obtained some more specimens of the male ; it was not 

 until I returned to London that I discovered my error. The 

 male of II . quadricinctus has yellow antennae, with the three 

 basal joints black, and this was the case in the males which 

 I captured, but the former has the mandibles dilated in a 

 remarkable manner, so that, when viewed sideways, they are 

 seen to be lobate at the base. My males have the mandibles 

 of the ordinary form, and I can only regard the specimens 

 as remarkable varieties of S. ruhicundus, of which species 

 I also took males, with the antennse dark above and pale 

 beneath, in company with the variety. The Nomada Ja- 

 cobccce is probably parasitic upon this Salictus. I hope, on 

 a future occasion, to quite satisfy myself by the capture of 

 the females of H. ruhicundus. 



I have, in the next place, to describe a new species of 

 Salictus from Cheshire. 



