Palpi quatuor inaequales ; 



anteriores porrecti, filiformes, posterioiibus plus rluplo longiores, 

 quinqupmticulati ; aititnlis cylindricis: pHmo breviori, secundo 

 bravissimo, terlio crassiori, omnium longissimo, reliquis tenuiori- 

 ' bns, aequalibus, adhaerentcs maxillarum dorso. 



posteriores triarticulati ; articulo prhno et secundo brevissimis, cylin- 

 dricis, tertio paullulum lorigiöri, ovato, labii medio adnati. 

 Thorax capite paullo angustior, cylindricus, minime convexus, antice ro- 

 tundatus, postice scutelli loco in angulum producta». Pectus convexum, 

 medio (glaberrimiuii), planum, Stria longitudinali baseos impressa, api- 

 cis elevata instructum. Meiathorax i) abdominia latitudine, et primi 

 illius segmenti dimidii longitudine, planus, azitice posticeque paruin 

 emarginatus. Cenchri 2) in nietatliorace duo squamaeforiues, miniiui 

 vixque conspicui. 



Abdomen thorace angnstius, triplo fere longius, cylindricum, sessile, segmen- 

 tis novein aequalibus, ultimo excepto reliquis angustiori, multoque bre- 

 viori, supra feie abscondito, apice rotundato, subtus sulco longitudinali 

 diviso. Cor.NicuLus vix adest. Aculeus siraplex, abdomine longior, e 

 squama septirni segtnenti exiens, retractilis , apice lanceolaius, subserra- 

 tus, acuminatus. 



1) Partcm scutelli et abdominis intermedia«), metatboracem seciiiidi-.m Kirby (Account of 

 the Ammophila in Linn. Transact. IV. p. 200. Not. X.) inclytum Mono^raphiae Apum 

 An^liac anderem, nuneupo. Jpse Kirby de li.ie parte I. c. sie est loquutnai "Tbat 

 part uf ihe ilioiax, wliicii ia behind ibe wiflgaj I believe I sLall name upon a future 

 occasion tlie Metailioiax, as it is separated iu hymenopterous insects both firorn the 

 tborax and scutellum by a suture, and in descriptions eften requives distinet no:ue." 



2) Cei.clni a g.aico vocabulo »«yjt?*« (mili; in) corpnscula sunt duo, iiueclis piezatis 

 propria, in UlrocjUB htere metatliornds pone scutellum sita. 



