ODYNEliUS. 227 



©4. O. Maypiims Sauss. — Niger, hirsutus ; antennis, tegulis, pedi- 

 busque ruiis ; abdomine fasciis 2 luteis, prirno segmento sessili, lato et 

 brevi ; alts ferrugineis, apice violascentibus. — Longit. 13 mm. — £ ? — 

 % . Clypeo paulum bidentato, luteo. 



Ab Odyn. Antucensi diffort, metanoto rotundato, marginibus hebetatis 

 (num ejus masculus ?). 



Odyn. Maypinus Sauss. Vespides, I, 169, 58, % (1852).— In Gay's Hist, 

 fis. de Chile, Zool. VI, Suppl. 564, 5 (1852).— Vespides, III, 229. 



Hab. Chili (Type in the Paris Museum). 



D. Form also quite chubby, but not so much depressed; mela- 

 thorax rounded, flat or convex behind, smooth, without mar- 

 ginal edges ; abdomen arched (vespiform) ; first segment 

 very short; its superior face transverse-linear. (Appear- 

 ance of a Vespa.) 



©5. O. vespifformis Halid. — Niger, parum depressus. nitidus, pilis, 

 lougissirnis iiigris hirsutus; capite et thorace nitidis, tenuiter punctatis ; 

 post-scutello breviter truncate; metanoto rotundato, convexo, punctato ; 

 thorace quadrato-globoso ; abdomine perfecte sessili (ut in genere 

 Vespa) superne convexo ; primo segmento brevissimo, antice excavate, 

 subexciso; secundo subtus basi valde tuberculato ; punctulo frontis 

 luteo; antennis pedibus et tegulis runs; pronoti margine postico et 

 abdominis segmentorum l 1 , 2 l limbo, luteis ; alis ferrugineis apice sub- 

 infuscatis. — ^Longit. 13 mm. 



$ . Clypeo nigro, apice rugoso, punctato, bicarinato, truncato ; 



£> . Clypeo luteo, punctato, bidentato ; mandibulis antice fascia flava ; 

 antennarum uncino minuto. 



Variat. Thorace et abdomine fere omnino nigris, fasciis rudimentaris vel 

 nullis. 



Odyn. vespiformis Halid. Trans. Linn. Soc. XVII, 323 (1837). 

 Odyn. kirsutulus Spin, in Gay's Hist. fis. de Chile, Zool. VI, 257, 3 aS51). 

 —Sauss. Vespides, I, 212, 118 ; III, 244. 



Bess. a. diff. — This species is rendered very distinct by its less 

 depressed form, and its quite sessile abdomen, which gives it the 

 appearance of a Vespa. The first segraenl is so short, that the 



superior face is almost wanting; its anterior face presents as in 

 Vespa a sort, of obsolete notch at its summit, which is an impres 

 sion of the post-SCUtel. The anterior face has not the triangular 

 form, its superior margin being arcuate as in the Vespa. 

 Hab. Chili (A common specie 



