258 Mr. E. Saunders' Synopsis of 



margins produced into a membranous sort of wing ; 

 clypeus rugosely puncturod, with a smooth raised dorsal 

 Kne. Mesothorax ahnost naked in the centre, dull, 

 finely and irregularly punctured. Scutellum rather 

 shining and more strongly punctured. Abdomen dull, 

 the apical margins of the segments testaceous, and 

 fringed with short golden hairs at the sides ; apical 

 fimbria brownish ; beneath punctured, apices of the seg- 

 ments pale, and fringed with long pale hairs. Legs 

 piceous, clothed with golden hairs ; posterior tibiiB and 

 tarsi clear testaceous-yellow, clothed with pale golden 

 hairs. Length 9 — 12 mm. 



Hah. Very rare. The only recorded localities for it 

 are Bristol, Windsor, and Hastings. 



This is a very distinct species, the pale legs of the <? 

 and the clear testaceous posterior tibiae of the ? dis- 

 tinguishing it at once from its nearest ally, hucepluda. 



26. Andrena hucephala, Steph. 



Steph., 111. Brit. Ent. Suppl. 17, pi. xliii., f. 4, a^ ; 

 Smith, Cat. Brit. Hym., 2nd ed., p. 61. 



Black. Head in the ^ very large ; mandibles simple. 

 Thorax clothed with brown hairs. Abdomen shining ; 

 apical ventral segment deeply emarginate at the apex ; 

 apex of tibiae and all the tarsi testaceous ; ? black ; 

 segments of abdomen narrowly pale and fringed with 

 white hairs ; apical fimbria brown ; posterior tibiae and 

 tarsi piceous, clothed with golden hairs. 



S . Head very large, sometimes nearly twice as wide 

 as the thorax ; clypeus shining and punctured, clothed 

 with long hairs at the sides ; mandibles long and falcate, 

 piceous at the tips. Antenna3 reaching to the apex of 

 the metathorax ; 3rd joint shorter than the two following 

 together ; 4th and 5th subequal. Thorax clothed with 

 bright brown hairs ; metathorax with the basal area 

 narrow and smooth at each side. Abdomen shining, the 

 apex of each segment rather widely testaceous ; apical 

 ventral segment narrow, rather widened at the apex, and 

 deeply emarginate. Legs clothed with pale hairs ; 

 apices of the tibiae and the tarsi testaceous. 



? . Head clothed sparingly with pale hairs ; clypeus 

 largely punctured, with a smooth dorsal line ; antennae 

 rather long, reaching to the metathorax; lateral 



