BEES OF GREAT BRITAIN. 107 



or less interrupted, the extreme apex covered with glittering 

 golden-yellow hairs. B.M. 



The above descriptions are from examples in the finest con- 

 dition ; the females when old have the pubescence usually rather 

 paler ; that of the males becomes entirely cinereous. 



This species is extremely abundant near London during May 

 and the two following months; it usually appears about the 

 middle of May, and abounds in the neighbourhood of Hamp- 

 stead | it burrows in hard sandy pathways ; I have frequently 

 captured the sexes in coitu, arid have received specimens from 

 Scotland and Ireland. 



Genus 6. MACROPIS. 



Megilla, pt, Fdbr. Syst. Piez. p. 332 (1804). 

 Macropis, Panz. Faun. Germ. 107. 16 (1809). 

 King, MSS. 



Head transverse, about the width of the thorax; the stem- 

 mata placed in a slight curve on the vertex ; antennae inserted 

 in the middle of the face ; the scape subclavate ; the first joint 

 of the flagellum ovate, the second joint narrowed at its base, 

 the apical joint obliquely truncate. The mentum narrowed 

 towards the base, thrice the length of the labium ; the labial 

 palpi four-jointed, the basal joint as long as the two following, 

 the apical one shortest ; the labium lanceolate, the paraglossse 

 minute. The maxillary palpi six-jointed, as long as the apical 

 lobe. The superior wings having one marginal and two sub- 

 marginal cells, the second submarginal cell receiving the two re- 

 current nervures; the posterior tibiae and tarsi incrassate, and 

 having a dense scopa of short pubescence in the female. Abdo- 

 men ovate. 



1. Macropis labiata. 



M. nigra, fusca, cinerascenti-villosa ; tibiis posticis externe 

 albido-lanatis ; metatarsis externe fuscis ; abdomine fasciis 

 tribus albidis, p rima mterrupta. 



Macropis labiata, Panz. Faun. Germ. 107. 16. 

 Smith, Zool. iv. 1279. 1. 

 Nyland. Ap. Boreal, p. 248. 1 ; Revis. Ap. Boreal, p. 269. 1. 



