NO. 2095. THE BRAVOlSlD SUBFAMILY OPIINAE—GAHAN. 73 



OPrUS MELLEUS, new species. 



Female. — Length 3 mm. Antennae longer than the body, 43- 

 jointed in the type, the first flagellar joint about equal to the scape; 

 head transverse, the vertex smooth and shining; frons smooth and 

 bare medially but with a few obscure punctures and fine hairs toward 

 the eye margins ; eyes broadly elhptical, very slightly narrowed below 

 and wider than the posterior orbits; face below antennae punctate 

 and hairy with a slight median ridge which terminates some distance 

 above the clypeus; clypeus punctate, about twice as wide as long 

 down the middle, fitting close to the mandibles, its anterior margin 

 rounded. Thorax sparsely pubescent, the hairs thickest on the 

 propodeum and mesosternum; mesoscutum polished, trHobed, the 

 parapsidal grooves nearly complete to the median slit-like impression 

 in front of the scutellum ; mesopleurae with an impressed crenate area 

 below, otherwise mostly smooth; propodeum irregularly rugose. 

 Wings hyaline ; stigma broad, the radius arising from about the middle 

 of stigma and attaining the wing margin above the extreme wing- 

 apex about the length of the second transverse cubitus ; first abscissa 

 of cubitus shorter than half the width of stigma, second abscissa about 

 equaling the first transverse cubitus; recurrent nervure interstitial; 

 posterior wing with a distinct postnervellus. Abdomen ovate, a 

 little longer than the thorax ; first tergite striate with strong lateral 

 and sublateral carinae; second tergite smooth laterally but with the 

 median area strongly striate from the base to the subobsolete suturi- 

 form articulation, third and following tergites smooth; ovipositor 

 exserted the length of the body ; eyes, ocelli, flagellum, and ovipositor 

 sheaths black; apical two-thirds of the posterior tibiae, their tarsi, 

 the apical joint of the median and anterior tarsi, and the wing veins 

 and stigma dark brown ; remainder of the body reddish stramineous. 



Type-locality. — Mount Washington, New Hampshire. 



r^/pe.— Cat. No. 19356, U.S.N.M. 



Described from one specimen. Ashmead's manuscript name is 

 adopted. 



OPIUS CRAWFORDI Viereck. 



Diachasma crawfordi Viereck, Proc. U. S. Nat. Mus., vol. 40, 1911, p. 181. 

 Diachasma craivfordi Keilin and Picado, Bull. Sci. France et Belg., 1913, vol. 47, 

 No. 2, p. 203, pi. 1. 



This is a large yellowish species easily distinguished from all others 

 by the characters given in the table of species. There can be no 

 doubt of the synonymy of the Keilin and Picado species with that 

 of Viereck. The figure given by the former establishes the identity 

 beyond question. 



Habitat. — Mexico. 



Host. — Anastre'pha striata. 



