116 BEES OF GREAT BRITAIN. 



yellow hairs, the mandibles ferruginous at their apex ; the 

 flagellum nigro-piceous beneath. Thorax : the wings sub- 

 hyaline, the nervures ferruginous ; sometimes the wings are 

 slightly fuscous ; the tegulae rufo-testaceous ; the femora, and 

 anterior tibiae at their base above, have a black pubescence ; 

 the intermediate tibiae, the apex of the anterior pair and the 

 tarsi have a fulvous pubescence ; the posterior tibiae and basal 

 joint of the tarsi have a dense scopa of long bright fulvous 

 pubescence. Abdomen ovate, the margins of the segments 

 depressed, the apical fimbria fuscous. B.M. 



Male. Length 5 lines.' Very closely resembling the female ; 

 but the head is wider and more pubescent ; the tibiae and tarsi 

 have a thin fulvous pubescence, the apical joints of the latter 

 rufo-testaceous ; the apex of the abdomen bilobate, the lobes 

 ferruginous. B.M. 



This species is much more abundant than P. calcaratus. It 

 abounds on Hampstead Heath, and is met with on many of the 

 heaths in Kent, Surrey and Hampshire ; the time of its appear- 

 ance is July and August. It has not been found in the north 

 of England or in Scotland. 



Subfamily 2. CUCULIN^, Latr. 

 Genus 2. NOMADA. 



Apis, pt., Linn. Faun. Suec. p. 419 (1761). 

 Noraada, pt., Fabr. Syst. Ent. 388 (1775). 



Body destitute of pollinigerous appendages. Head trans- 

 verse, as wide as the thorax ; antennae geniculated, filiform, 

 nearly as long as the thorax ; the labrum transverse, its anterior 

 margin rounded ; mandibles bidentate, in the males simple, and 

 rounded at their apex. The mentum slightly narrowed at the 

 base, the labium of the same length as the mentum, broad and 

 narrowed a little before the apex, which is rounded ; the labium 

 is grooved and transversely striated ; the paraglossae about one- 

 fourth the length of the labium ; the labial palpi four-jointed, 

 continuous, a little shorter than the labium, the basal joint longer 

 than the three following, the second about one-fifth of the length 

 of the basal joint, the two following each shorter than the pre- 



