HYMENOPTERA. 221 



testaceous, the tarsi beneath fulvous, the wings subhy aline, the 

 nervures black. Abdomen cylindric, shining and strongly punc- 

 tured ; the basal and apical margins depressed ; the first and 

 three following segments have very narrow fasciae of white pu- 

 bescence, which is rather wider at the lateral margins ; the fasciae 

 cross the segments about one-third within, curving backwards to 

 the lateral apical margins, the sixth segment covered with white 

 pubescence at the base; beneath densely clothed with white 

 pubescence. 



Hob. Georgia. 



9. CHELOSTOMA SIGNATUM. 



Chelostoma signatum, Eversm. Butt. Mosc. xxv. 73. 1 (1852). 

 Hab. Russia. 



10. CHELOSTOMA INERME. 



Chelostoma inerme, Schqff. Norn. Ent. p. 98. 

 Eversm. Bull. Mosc. xxv. 74. 2. 



Hab. Russia. 



Genus 17. HERIADES. 



Apis, pt., Linn. Faun. Suec. 419; Syst. Nat. i. 954. 11 (1761). 



Hylseus, pt., Fabr. Ent. Syst. ii. 302 (1793). 



Anthophora, pt., Fabr. Syst. Piez. p. 372 (1804). 



Megachile, pt., Latr. Hist. Nat. xiv. 52. sec. 2 (1805). 



Heriades, pt., Spin. Ins. Lig. fasc. ii. 8 (1808). 



Chelostoma and Heriades, Latr. Gen. Crust, etlns. iv. 161 (1809). 



The labial palpi 4-jointed, the basal joint not quite half the 

 length of the second, the third and fourth minute, placed at the 

 side and near the apex of the second joint. The maxillary palpi 

 3-jointed, the two basal joints short and stout, the apical joint 

 slender, cylindric and pointed at the apex. 



1. HERIADES TRUNCORUM. B.M. 



Apis truncorum, Linn. Faun. Suec. 1692; Syst. Nat. i. 955. 15, 

 and Cab. Mus. Linn. Soc. 



Kirby, Mon. Ap. Angl. ii. 258. 51. 

 Hylaeus truncorum, Fabr. Ent. Syst. ii. 305. 9. 



Panz. Faun. Germ. 64. 15. 



Anthophora truncorum, Fabr. Syst. Piez. p. 379. 29. 

 Megachile truncorum, Latr. Hist. Nat. xiv. 52. 3. 



Spin. Ins. Lig. fasc. 2. p. 9. 



