7. osmia. 159 



griseous pubescence ; on the third and fourth segments it is slightly 

 ochraceous ; the sixth and seventh segments are both deeply incised 

 in the middle. B.M. 



The female of this species has a close general resemblance to the 

 same sex of 0. parietina, from which it is distinguished by having 

 fulvous pubescence on the two basal segments of the abdomen and 

 black pubescence on the face ; its smaller size will separate it from 

 0. xanthomelana ; and it has the legs with entirely black pubescence. 

 This species was first discovered by Capt. Blomer, subsequently by 

 Dr. Thwaites, on Durdham Downs, who proposed the specific name 

 0. pilicornis. It has also been found in Leigh Woods, near Bristol, 

 in some abundance, and also at Birch Wood. It appears about the 

 end of May, but is a very local insect. 



8. Osmia aurulenta. 



0. nigra, ferrugineo-rufo villosa, abdominis segmentis marginibus 

 fulvis, ano in. mare bidentato. 



Osmia aurulenta, Latr. Fncycl. Meth. viii. 584 2 • 



St.-Farg. Hym. ii. 323, tab. 20. fig. 4 $ . 



Smith, Bees Great Brit. 163 S 2 • 



Nyland. Notis. ur Stilish, pro Faun, et Flo. Fenn. ii. 273. 



Schench, Nass. Bien. 338. 



Gerst. Stett. ent. Zeit. (18G9) 351. 



Thorns. Hym. Scand. ii. 248. 

 Apis aurulenta, Panz. Faun. Germ. 63. 22 § • 

 Apis hsematoda, Panz. Faun. Germ. 81. 20 $ . 

 Apis tunensis, Kirby, Mon. Apitm Angl. ii. 269 2 • 

 Megachile tunensis, Latr. Hist. Nat. xiv. 58. 

 Osmia tunensis, Smith, Zool. ii. 744. 



Female. Length 4-4| lines. — Black, closely punctured ; the head 

 large, subquadrate, as wide as the thorax ; mandibles stout, triden- 

 tate, the apical tooth acute ; the face clothed with a short fulvous 

 pubescence ; the antennas not longer than the head, filiform and 

 slender. Thorax clothed with a rufo-fulvous pubescence, paler be- 

 neath ; the wings fusco-hyaline, the tegulae ferruginous ; the legs 

 have a rufo-fulvous pubescence, that on the tarsi beneath bright 

 ferruginous ; the calcaria rufo-testaceous, the claws ferruginous. 

 Abdomen subglobose, at the base and on the sides a rufo-fulvous 

 pubescence ; the margins of the segments have a short fringe of 

 the same colour ; beneath, densely clothed with bright ferruginous 

 pubescence. B.M. 



Male. Length 4-5 J lines. — The face densely clothed with long pale 

 pubescence, that on the vertex and disk of the thorax ochraceous ; 

 both the latter have an aeneous tinge ; the pubescence on the sides 

 of the thorax and beneath hoary ; the legs have a similar pubes- 

 cence ; the wings as in the female. Abdomen narrowest at its 

 base, obscurely asneous ; the base has a little pale pubescence ; the 

 margins of the three apical segments have a fringe of bright fulvo- 



