CHARLES W. HOOKER. 39 



Legs light ferruginous, inner tibial spur distinctly stouter and longer; 

 claws black, pectinate. 



Abdomen of general color, strongly compressed, venter and apical 

 segments slightly tinged with fuscous. 



In redescribing this species I have examined the two co- 

 types. 



Cotypes, two 9 's, New York State Museum. 



I am not fully satisfied of the validity of this species ; it 

 is related to O. dt/oveolahis and its subspecies. 



Distribution . — Colorado . 



Ophion chilensls Spin. 



Ophion chilensis Spinola, Gay Hist. fis. y. polit. de Chile, VI, p. 



515, n. 1, 9 1851. 



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



" " Szepligeti, Gen. Ins., Hym., 34me Fasc, p. 31, n. 



92 1905. 



Glaucous to light straw yellow, marked with ferruginous or black ; 

 vertex glaucous or luteous, antennce fulvous, discocubital vein usually 

 appendiculate , nervulus antefurcal to interstitial, nervellus broken at 

 or near the middle. 



Length, 12-18 mm. ; wing, 12-15 mm. ; spread, 26-32 mm. ; antennae, 

 12-18 mm. 



Head luteous to alboglaucous, face sometimes tinged with ferrugin- 

 ous, vertex luteoglaucous ; ocelli prominent, well separated ; eyes me- 

 dium sized, only slightly emarginate ; clypeal fovese distinct. 



Thorax glaucous, mesonotum with three longitudinal ferruginous or 

 black stripes, parapsidal furrows distinct only at the anterior border ; 

 mesosternum and metasternum ferruginous or dark gray, pleurae of 

 the general color, frequently marked with ferruginous, scutellum often 

 flavous; metathorax more or less marked with fuscous or ferruginous, 

 often in the shape of two clearly defined ferruginous spots at the base ; 

 with two transverse, two submedian and two lateral carinse. 



Wings hyaline, iridescent ; stigma luteoglaucous, frequently marked 

 with fuscous ; costa light glaucous, with the lower edge black, nervures 

 otherwise black ; discocubital vein usually angularly broken and ap- 

 pendiculate, sometimes arcuate without appendix — first recurrent vein 

 about one-third the length of the second ; nervulus antefurcal to inter- 

 stitial, nervellus broken at or near the middle. 



Legs fulvous, coxae frequently more or less glacous, claws pectinate ; 

 abdomen with first segment glacous or fulvous, the remainder varied 

 with ferruginous or black, or entirely fuscous. 



TRANS. AM. ENT. SOC. , XXXVIII. 



