74 BEES OF GREAT BRITAIN. 



rugose space, enclosed by a sharp ridge; the antenna have 

 the flagellum nigro-piceous towards the apex beneath, and 

 are half the length of the thorax ; the thorax thinly clothed 

 above with short fulvous pubescence, at the sides it is shorter 

 and paler i the pubescence on the femora beneath and also the 

 floccus, pale fulvous; the scopa bright fulvous; the tarsi be- 

 neath fulvo-ferruginous, the apical joints of the tarsi ferru- 

 ginous ; wings hyaline, their nervures pale rufo-testaceous. 

 Abdomen ovate, shining and rather strongly punctured; the 

 margins of the segments depressed, and having a thin sparing 

 frmge of pale fulvous pubescence ; the apical fimbria fusco-fer^ 

 ruginous. 



This insect might be mistaken for a small example of J. atri- 

 ceps, female ; but the description will at once point out the dif- 

 ference. A single specimen has been captured near Colney 

 Hatch : there are one or two in the collection of Mr. Desvignes, 

 who does not know their locality. 



27. Andrena spinigera. 



A, atra, fulvo-pilosa ; thorace fulvescenti; abdomine fusco; pe- 

 dibus rufo-fuscis, pilosis. 



Mehtta spinigera, Kirhy, Hon. Ap, Angl ii. 123. 63 $ . 

 Andrena spinigera, Smith, Zool v. 1669. 7 <? ? . 



Female. Length 5^-6 lines.— Black; the face and cheeks tliinly 

 clothed with fulvous pubescence, the apical half of the man- 

 dibles ferruginous. Thorax thinly clothed above with fulvous 

 pubescence ; the metathorax and sides have pubescence of a 

 lighter tint ; wings hyahne, the nervures pale ferruginous, the 

 tegulse rufo-piceous; the legs dark rufo-testaceous, then pu- 

 bescence fulvous ; the floccus and scopa beneath fulvous, the 

 latter fuscous above. Abdomen : the apical margins of the two 

 basal segments rufo-testaceous; two minute dots of the same 

 colour on the basal segment; the abdomen has a scattered ful- 

 vous pubescence ; beneath, ferruginous at the base. 



Male. Length 5-5| lines.— Black; the pubescence pale ftdvous ; 

 head usually much wider than the thorax, the face densely 

 clothed with black pubescence; the mandibles forcipate, anil 

 armed at their base with a long acute spine, their tips ferru- 

 ginous ; antennae about the length of the thorax, the joints of 

 the flagellum subarcuate. Thorax : the wings hyaline and iri- 

 descent, the nervures pale ferruginous ; legs fusco-ferruginous, 

 the apical joints of the tarsi paler. Abdomen lanceolate, shiniug. 



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