40 AMERICAN HYMENOPTERA. 



In redescribing this species I have examined twenty-five 

 9 and one cf specimens. 



Type- — 9 . Location unknown to the author. 



As Spinola notes in his description this species varies con- 

 siderably in color in both directions, from a form with the 

 body, except legs and antennae, entirely glaucous to one that 

 is straw-yellow with distinct ferruginous markings ; between 

 these two are various combinations of yellow and glaucous 

 with more or less distinct ferruginous markings. The disco- 

 cubital vein is normally angularly broken and appendiculate, 

 but a good series shows at once that it is frequently, as in 

 bifoveolatus, only angularly bent, or arcuate, and without ap- 

 pendix. 



Dist7-ibution. — This species was described by Spinola from 

 Chili, and I have before me numerous specimens from Largo 

 Blanco Valle, Chubut Territory, Patagonia, Argentina. 



Location of specimens. — U. S. National Museum, 9 and 

 cf from Argentina (Largo Blanco Valle, Chubut Territory, 

 Patagonia). Massachusetts Agricultural College, 9, Argen- 

 tina. British Museum. 



Ophion ancyloneura Cam. 



Ophion ancyloneura Cameron, Biol. Centr. Amer., Hym., I, p. 



294, n. 13, 9, pi. 12, fig. 17 1886. 



" ancyloneurus Dalla Torre, Cat. Hym., Ill, p. 188 1901. 



" " Szepligeti, Gen. Ins., Hym., 34me Fasc, p. 



31, n. 89 1905. 



Sulphur-yellow , antennce, abdomen and tibice luteous, wings hyaline, 

 stigma testaceous . 



Length, 17 mm. 



Antennae a little longer than the body, pilose, third joint shorter 

 than the fourth and fifth together ; head closely punctured ; clypeal 

 fovese large, deep, longer than broad, face broadly projecting in the 

 middle ; with a longish tubercle below the antennae ; tips of the 

 mandibles piceous black. Thorax almost impunctate, shining ; meso- 

 notum with three obscure fuscous stripes, the sutures very shallow ; 

 metanotum with two distinct, transverse keels, united in the centre by 

 two longitudinal ones, which form a longish area ; from the apical 

 transverse keel run some not very clearly defined keels to the apex, 

 (except the central pair which form an area, narrower towards the apex 

 in front of the above mentioned area between the two transverse keels); 



