CHARLES W. HOOKER, 37 



Wings hyaline or slightly tinged with fuscous ; stigma and costa flav- 

 ous, bordered with black below ; nervures black, those enclosing the 

 cell thickened, those at the apex beyond the closed cells slender and — 

 except from the radial vein— even somewhat indistinct at the outer 

 end ; base of radial vein straight and slender ; discocubital nervure 

 twice angularly broken and appendiculate, with its appendix directed 

 downward; nervulus well antef ureal to interstitial, nervellus broken 

 below the middle ; legs light to dark flavous, claws pectinate ; abdo- 

 men flavous to dark fulvous, more or less varied with black. 



Described from 9 and & types. 



Types. — 9 cf . American Entomological Society Collec- 

 tion. 



This subspecies is closely related to O. abnormts, having 

 the large broad head, small eyes, etc., but it may be readily 

 separated from that species by characters of the venation. 

 The basal nervures, as far as the apex of the closed cells, are 

 noticeably thickened throughout, while those beyond are 

 more slender than usual, and in their outer ends may almost 

 disappear (except for the radial). The shape of the third 

 discoidal cell and the discocubital vein, twice angularly 

 broken with the appendix pointed downward, are also quite 

 different. I am not satisfied that these characters are all 

 well fixed, but a series of specimens would settle this point. 

 If the characters are well fixed I believe that they are of 

 specific value, but in the absence of such evidence I can only 

 place this insect as a subspecies. 



Distribution. — This subspecies appears to have a similar 

 range to abnormis, along the mountain ranges of the western 

 United States ; the cotypes come from Montana and south- 

 ern California. Nothing is known of the life history, habits 

 or hosts. 



Location of specimens^ — American Entomological Society. 

 Cotypes 9 and d^, southern California, Montana. 



Opliion melanostig-ma Cam. 



Ophion me lano stigma Cameron, Biol. Centr. Amer., Hym., I, p. 



293, n. 14, cf , pi. 12, fig. 18 1886. 



Dalla Torre, Cat. Hym., Ill, p. 195 1901. 



" " Szepligeti, Gen. Ins., Hym., 34'ne Fasc, p. 



32, n. 105 1905. 



TRANS. AM. KNT. SOC. , XXXVIII. 



