44 HYMENOPTERA. 



Nomada Jacobcece. This local species we found in some 

 numbers on the slopes at Kingsdown on the Ragwort. 



Nomada atrata. This species we took in the same situa- 

 tion as the former; it is by far the most important capture 

 we have made this season ; the only examples which were 

 known previously were taken in Sussex by my friend 

 Mr. Samuel Stevens, both were males. Of three taken at 

 Kingsdown two are females ; this sex scarcely differs from 

 the male, it is black, with the extreme base of the flagellum 

 beneath, and the mandibles, ferruginous ; the anterior and 

 intermediate tarsi, the posterior tibiae at their base outside, 

 the tubercles, tegulae and two ovate spots on the scutellum, 

 ferruginous; the tibias with a black stain outside; wings 

 with their apical margins very dark fuscous ; abdomen with 

 the apical margin of the basal segment, and the basal margin 

 of the second, ferruginous ; the sides of the metathorax, and 

 some spots on the sides of the abdomen, with silvery white 

 pubescence. The male is rather brighter than those captured 

 in Sussex ; taken on Reseda lutea. 



JEpeolus variegatus. Taken plentifully at Deal on the 

 sand-hills. 



Stelis aterrima. Taken in company with the preceding 

 species ; this insect we have always found on the flowers of 

 the Mallow; it is probably parasitic on Osmia fulviventris, 

 as that bee is extremely abundant in the same situation, the 

 eand-hills, Deal. 



Osmia parietina. This very local species was taken at 

 Loch Rannoch, by Charles Turner, the collector. 



Osmia xanthomelana. This rare, or very local, species 

 was captured near Exeter by Mr. Parfitt. 



Osmia spintdosa. This little bee may be found on nearly 

 every thistle-head at the foot of the cliffs beyond Kingsdown 

 during July and August. 



