Hymenoptent aculcata collected in Algeria. 187 

 Halictus cincticornis, n. sp. 



^ . Valde elongatus, griseo pubescens, antennaram articulis 4-13 

 basi apiceque griseo cingulatis. Capitefthoraceqne punctatissimis. 

 Abdomine cylindrico, minutissime ruguloso et punctato, segmentis 

 ventralibus 2 et 3 disco albido hirsutis. 5 • Malachuro simillima 

 propodeo breviori, apice latiori, abdomine segre punctato, maculis 

 segraenti secundi majoribus, distinguenda. 

 . (J. Very elongate, black, labrum, apex of the clypens and 

 mandibles except at the extreme base, tibiae and tarsi except a 

 spot on the anterior and posterior sides of the former flavoiis, each 

 segment of the abdomen with a pale apical ring. Head and tliorax 

 exceedingly closely, finely and rugosely punctured, lateral angles of 

 the cheeks above the mandibles viewed from in front somewhat 

 prominent, face elongate much as in albipes, clothed in front with 

 white, on the vertex with greyish ochreous hairs, antennae long, 

 joints 4 to 13 with a well marked grey pubescent basal and apical 

 band, that of the apex very narrow on the more basal joints, hardly 

 perceptible on 5. Mesonotum punctured and clothed like the vertex 

 of the head, tegula3 very pale testaceous, wings hyaline, nerves 

 testaceous, legs clothed with whitish hairs, knees tibiae and tarsi pale, 

 the tibiae with a black anterior and posterior streak, propodeum with 

 a sub-triangular and finely longitudinally rugose area, subtruncate 

 posteriorly but with its angles rounded, entire thorax clothed with 

 greyish hairs, sides of the propodeum very finely and diagonally 

 striate ; abdomen very elongate clothed with fine short grey hairs, 

 exceedingly finely and closely punctured, even more so than in 

 malachurus and quite distinct in this respect from albipes or 

 cxjlindricus', 2nd and 3rd segments with a rather large but ill-defined 

 lateral patch of white pubescence on each side of the base, all the 

 segments with a rather broad pale semitransparent apical ring, 2nd and 

 3rd ventral segments clothed on the disc with projecting white hairs. 



$ Kesembling that sex of malacJuirus but with the clypeus more 

 produced giviug the face a longer shape, and with an almost im- 

 perceptible puncturation on the basal segment of the abdomen, the 

 surface of this segment under a Coddington lens is seen to be 

 exceedingly finely aciculate with a very fine and rather scattered 

 puncturation, in malachurus the puncturation is fine and very close. 

 The propodeum in the species here described is shorter and wider at 

 the apex than in malachurus, and the white patches of hairs at the 

 base of the 2nd segment much more developed, the entire abdomen 

 also is much less hairy. 



Long. 8-9 mm. 



