1893.] HTMElfOPTERA OF THE FAMTLT ODTNEBID^. 687 



Odtnueus COLOCOLO. 



Odynerus cohcolo, Sauss. in Gay, p. 566 (1852). 

 This must be a notable species if specimens agree with the 

 description. 



Odtiteeus subpetiolattjs. 



Odynerus subpetiolatxis, Sauss. Vesp. i. p. 162 (1852). 



Odynerus coarctatus, Sauss. in Gay, p. 565 (1852). 



De Saussure published two descriptions of this species almost 

 simultaneously, but he states that the name of 0. petiolatus was 

 published first. 



This species is common in Central Chile. It is very much like 

 0. lahiatus, but smaller and has no tubercle beneath the second 

 abdominal segment. 



OdYKEEUS TtTBEECTTLATTJS. 



Odyneims tubercidatus, Sauss. in Gay, p. 564 (1852). 



Allied to 0. humeralis, but smaller, with a small tubercle on the 

 upper surface of the first abdominal segment ; differs also in the 

 form of the metathorax and in colours. 



This species must be very rare, as I have looked for it for many 

 years and have obtained only one specimen, which I caught near 

 Valparaiso. 



OnTNEEtrS TTTBEECTJLITElfTEIS. 



Eumenes tubercidiventris, Spin. 1. c. p. 267 (1851). 



This common little species is easily recognized by its large 

 tubercle on the underside of the second abdominal segment in 

 both sexes, and by the yellow coxse of the males. 



ODTtfEETJS MOLINA. 



Odynerus molince, Sauss. in Gay, p. 562 (1852). 



Odynerus molinius, Sauss. Vesp. iii. p. 251 (1854). 



Described from a single specimen, female, said to exist in the 

 Paris Museum. From the description it would appear to be 

 allied to 0. lahiatus, perhaps a variety. 



Odykeetjs labiatus. 



Odynerus lahiatus, Haliday, Trans. Linn. Soc. xvii. p. 323 (1837). 

 Odynerus laehesis, St.-Farg. Hym. ii. p. 667 (1841). 

 Odynerus marc/inicollis, Spin. 1. c. p. 256 (1851). 

 One of the most common Chilian species. 



Odyneeus CAUPOLiCAiTirs, sp. nov. 



Allied to 0. lahiatus, but with yeUow tegulse and yellow markings 

 on scutellum, postscutellum, and metathorax. 



cJ . Head and thorax coarsely punctured, clothed Tvith short, 

 reddish hairs, dull black ; abdomen finely punctured, velvety. 

 Antennae and legs ferrugiaous, tarsi and coxae darker. Post- 



