BEES OF GREAT BRITAIN. 11 



tibiae in front, and the intermediate and posterior pairs at their 

 base, pale yellow ; all the tarsi of that colour, with the claw- 

 joint ferruginous ; the basal joint of the intermediate tarsi di- 

 lated in front ; the abdomen elongate-ovate, slightly pubescent 

 at the apex ; beneath, in the middle of the apical margin of the 

 second segment is a depression clothed with short fulvous 

 pubescence. 



In the Kirbyan collection is a specimen of this insect without 

 a name ; but in Mr. Kirby's interleaved copy of his Monograph 

 it is named cornuta, a name which I had given it before I saw 

 the MSS. notes. A specimen of each sex was taken on Cove 

 Common, Hants, but described as distinct species ; since that 

 time Mr. Douglas gave me some stems of the common Dock, 

 which were evidently perforated by an hymenopterous insect ; 

 these produced both sexes from the same stem, and conse- 

 quently I retain the manuscript name given by Mr. Kirby for 

 the female of the species. 



5. Prosopis punctulatissima. 



P. nigra, tibiis flavo annulatis, abdomine segmentis punctulatis- 

 simis. 



Hylaeus punctulatissimus, Smith, Ent. Trans, iv. 33; Zool. vi. 

 2205. 7. 



Female. Length 3 lines. Black ; the head and thorax strongly 

 and closely punctured ; the inner orbits of the eyes have a broad 

 yellow stripe as high as the insertion of the antennae ; the 

 tubercles, a spot on each side of the collar and another in front 

 of the tegula?, pale yellow ; wings subhy aline, the anterior and 

 intermediate tibiae at their extreme base and a ring at the base 

 of the posterior pair, pale yellow ; the abdomen shining and 

 strongly punctured, and having on each side of its apical margin 

 a line of white pubescence ; the rest of the abdomen is more 

 finely punctured, and has a short silvery pile, observable in 

 certain lights. 



Male. Length 3 lines. Black ; the face, and the scape in front 

 yellow ; the apical half of the flagellum testaceous ; the thorax 

 punctured as in the female ; a spot on the tegulae, the an- 

 terior tibiae in front, the intermediate and posterior pairs at 

 their base, and the basal joint of the posterior tarsi, pale yellow ; 

 the apical joint fusco-ferruginous. Abdomen oblong-ovate, 

 shining, closely and distinctly punctured, the margins of the 

 segments more or less rufo-testaceous. 



