SUPPLEMENT. 383 



reflexed expanded membrane convexo-concave and some- 

 what fan-sliaped. A small portion of these membranes 

 appears on either side of the stipites in a dorsal view of the 

 armature." 



Hab. Sidmouth, S. Devon ; Weymouth. 



Easily distinguished from inmciaiiasi'mus by the darker 

 tarsi and the peculiar form of the armature ; ? unknown. 



In the table of species of Halictus antea, p. 208, 

 division 44 should be subdivided thus : — 



44a. tarsi pale testaceous . . . punctatissimus. 

 44i. do. nearly black .... angusticeps. 



Andreaa ambigua, Perk. — "S face with pale hairs 

 generally more or less mixed with black ones towards the 

 sides, those on the clypeus nearly white ; apex of labrum 

 hardly emarginate, mandibles simple at the base ; an- 

 tennee with the second and third joints of the flagellum 

 subequal in length ; thorax with brown hairs, paler at 

 the sides and on the metathorax ; basal segment of 

 abdomen and the base of the second with long fulvous 

 hairs, the rest with sparser decumbent pubescence; the 

 segments punctured at the base, smooth and shining 

 along their apical margins ; legs with pale hairs ; abdo- 

 men beneath with long suberect pubescence ; the apical 

 margins of the segments ciliated with pale hairs. 



? face with black pubescence, labrum hardly emar- 

 ginate, clypeus somewhat sparsely irregularly punctured, 

 thorax as in the (^ , but more densely clothed; two basal 

 segments with bright fulvous hairs, third and fourth with 

 paler and more decumbent ones, apical segments with 

 black hairs ; dorsal valve of sixth segment very finely and 

 closely punctured, depressed along the margins ; scopa3 

 dark above." 



Hab. Near Moreton-Hampstead; Dartmoor. ,} and 

 $ taken in coitu, King's Lynn, Norfolk {Barrett) ; 

 Tostock, near Bury St. Edmunds (Tuck.). 



