. Catalogue of British Hymenoptera in the British museum. Bees; Hymenoptera. 164 with silvery white pubescence; the antennae filiform and longer than the head; the thorax more pubescent than in the female, and the segments truncate behind; the abdomen inflexed at the apex with white narrow fasciae; the sixth segment with its apical mar gin entire, compressed in the middle, on each side of which is a deep transverse fovea. Heriades truncorum is a very rare species in this country, but less so on the continent: 1 have received it from Westphalia in some numbers. Mr. Kirby received
. Catalogue of British Hymenoptera in the British museum. Bees; Hymenoptera. 164 with silvery white pubescence; the antennae filiform and longer than the head; the thorax more pubescent than in the female, and the segments truncate behind; the abdomen inflexed at the apex with white narrow fasciae; the sixth segment with its apical mar gin entire, compressed in the middle, on each side of which is a deep transverse fovea. Heriades truncorum is a very rare species in this country, but less so on the continent: 1 have received it from Westphalia in some numbers. Mr. Kirby received it from his friend Mr. Trimmer, who took it near Brentford, where I have searched for it unsuccessfully. Mr. Ingall found it near Dulwich, taking three or four specimens. It must no doubt be looked for about old posts and rails in June. It is a species 1 never met with. Genus 9. CHELOSTOMA. Apis (pt.), Linn. Sijst. Nat. i. 954 (1766). Hylaeiis (pt.), Fair. Syst Piez. 319 (1804). Anthophora (pt.), Fubr. lib. cit. 372 (1804). Megachile (pt.), Latr. Hist. Nat. xiv. 51 (1805). Chelostoma, Latr. Gen. Crust, et Lns. iv. 161 (1809). Heriades (pt.), Zett. Lis. Lapp. 467 (1840). Gyrodroma (pt.), Thorns. Hym. Scand. ii. 259 (1872). Head subquadrate, rather wider than the thorax ; ocelli in a tri- angle ; antennce subclavate, short, a little longer than the head, slender and filiform in the male, with the intermediate joints den- ticulate beneath ; labrum elongate, narrowed anteriorly, and trun- cate at the apex; mandibles bidentate, ciliated on their inner mar- gin ; the labial palpi 4-jointed, the basal joint one third the length of the second, the second joint attenuated at the apex, the third short and placed in a line with the second; the fourth clavate and arti- culated to the side and near the apex of the third. Maxillary palpi 3-jointed, the joints short and subequal. Anterior ivings with two submarginal cells, the second receiving both the recurrent nervures. Abdomen as long as t
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectbees, bookyear1876
