190 Mr. Edward Saunders on 



$ 1. Biskra, on Sonchus onaritimus, 12, iv, 97. (A. E. E.) 



$ 1. Constantine, on Sonchus tcncrrimus, 8, v, 95. 



?1. „ „ „ „ 2, xi, 94. {A.E.E.) 



Halictus punctatissimus, Schk. 



$ 1. Azazga, 2, ix, 93. {A. E. E.) 

 ^ 1. Bone, 2, iii, 96. {A. E. E.) 



Halictus yakourensis, sp. nov. 



^ . Niger nitidus, clypei apice, mandibulis, antennis subtus, tegulis, 

 tibiis antei'ioribus antice, tarsis genubusque omnibus plus minus 

 piceis, genis subprominentibus angulosis, mesonoto punctato, inter- 

 stitiLs Isevibus, abdomine subovali,,-.nitido, punctato. Segmentorum 

 apicibus vix impressis. 



Black, apex of clypeus, mandi1)les, antennro beneath, tegulfc, front 

 tibia3 anteriorly and all the tarsi more or less piceous ; head finely 

 and closely punctured above the insertion of the antennae, less closely 

 so on the clypeus. Cheeks short, slightly projecting laterally be- 

 tween the eyes and mandibles in a sharp angle; mesonotum shining, 

 regularly and somewhat closely punctured, intervals between the 

 punctures smooth, wings slightly dusky, post-scutellum hairy, 

 legs clothed with short whitisli hairs, 2nd and 3rd joints of hind 

 tarsi slightly longer than wide, propodeum not truncate posteriorly, 

 basal area rather small, irregularly striate, sides punctured and 

 clothed with short greyish hairs, abdomen shining elongate ovate, 

 with scattered greyish-white hairs, which are more abundant towards 

 the apex, apical impressions of the segments ^scarcely indicated 

 except at the sides, 1st segment rather sparsely punctured, the 

 following more closely so, nearly smooth at their apices ; beneath 

 somewhat shining very finely rugulose and remotely punctured the 

 punctures bearing fine hairs. 



Long. 6 mm. 



^ 4. For^t de Yakouren, on and over the ridge on which 

 stands the Maison Forestier, on Eryngium tri- 

 cuspidatum, 19, ix, 93. {A. E. E.) 



This species is very distinct by its angulated cheeks and 

 deep black colour. 



Halictus, sp. ? 



$ 1. Bune, 1, V, 96. {A. E. E.) 



