50 AMERICAN HYMENOPTERA. 



yet prove to be a synonym of O. bilineatus ; it may appar- 

 ently be recognized by its lighter color and broadly project- 

 ing face. The third discoidal cell is, judging from the figure, 

 fully as wide as long. 



Distribution. — Mexico (Cordova), Panama (Volcan de 

 Chiriqui, 2,500 to 4,000 feet. 



Ophion chiriquensis Cam. 

 Ophion chiriquensis Cameron, Biol. Centr. Amer., Hym., p. 294, 



n. 11, pi. 12, fig. 20 1886. 



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



" " Szepligeti, Gen. Ins., Hym., 34me Pasc, p. 31, 



n. 93 1905. 



Luteous, head, scutellum and pleura flavous, win^s hyaline, stigma 

 luteous. 



Length, 23 mm. 



Head shining, obscurely punctured ; antennae luteous, as long as or 

 longer than the body; clypeal foveae deep, longish. 



Thorax covered with close pale pubescence ; mesonotum very minu- 

 tely punctured, the pleura finely, longitudinally striated. Scutellum 

 carinate along the sides. Metanotum with one transverse keel near 

 the base, the base behind it finely rugose, the rest of the surface finely 

 rugose and bearing arcuate keels ; metapleurse finely rugose ; petiole 

 shining, glabrous, slightly hollowed in the center above the base ; sec- 

 ond segment stouter and not so much compressed laterally as the peti- 

 ole, densely covered with a white pubescence. Wings hyaline, stigma 

 luteous, basal division of the radius not curved upward, third discoidal 

 cell more than three times as long as wide, nervulus antef ureal. 



I have not seen a specimen of this species, and can only 

 give the original description slightly rearranged. 



Type. — 9 . British Museum. 



Cameron states that it is " smaller than O. curvinervis and 

 identical with it in structure (including the form of the meta- 

 thorax) and in coloration, except that the antennas are 

 entirely luteous ; differing from it otherwise in its smaller 

 size, in the second abdominal segment being stouter and not 

 so much compressed laterally compared to the first ; in the 

 basal division of the radial nervure not being curved up- 

 wards, and in the upper angles of the apex of the first cubital 

 cellule being longer than the lower." 



Distribution. — Panama, Volcan de Chiriqui, 2,000 to 3,000 

 feet. 



