no. 1812. NEW ICHNEUMON FLIES— VIERECK. 189 



CREMASTUS HYMENLE, new species. 



Judging from the accepted classification of Ophioninas this species 

 should not figure as a Cremastus because the occipital ridge is not 

 broken and the radial cell extends more than halfway between the 

 stigma and tip of the wing. In other particulars it is so closely simi- 

 lar to the genotype of Cremastus that I am constrained to give it this 

 position. 



Female. — Length 6.5 mm.; stramineous, head with a broad black- 

 ish stain extending from the occipital foramen to the scrobes, orbits, 

 malar space and clypeus yellow, rest of head mostly stramineous, 

 dorsulum with three brownish areas ; areola poorly defined below the 

 costulas, finely sculptured and dull, the sculpture similar to that of 

 the other areas of the propodeum; wings hyaline, most of veins and 

 stigma dark brownish; postpetiole and second tergal segment finely 

 closely striated, petiole proper blackish, second tergal segment 

 mostly blackish as is the third at base, exserted portion of sheaths of 

 the ovipositor about half the length of the tergum of the abdomen. 



Male. — Similar to the opposite sex. 



Type.— Cat. No. 13507, U.S.N .M. 



Type-locality. — Oahu, Hawaiian Islands. 



"Bred from Hymenia fascialis, August 16, 1910." H. O. Marsh, 



collector. 



Genus HYPERALLUS Foerster. 



The following species described under this genus would seem to 

 differ from Foefster's description only in having the longer of the 

 hind spurs at least half as long as the first joint of the hind tarsi. 

 The thyridia of the second dorsal segment are not much more devel- 

 oped than in Scopesis. Assuming that the thyridia are not con- 

 spicuous in our species the same would be best received into Scopesis. 

 Our species is apparently, however, sufficiently different from Scopesis 

 to give Hyperallus standing as separate from Scopesis. 



HYPERALLUS CALIRO^, new species. 



Compared with Scopesis guttigera (Holmgren) Thomson, this 

 differs as follows: 



Female. — Length, 3.5 mm.; front hardly depressed, first flagellar 

 joint virtually as long as scape and pedicel combined, head black, 

 dullish in front, polished behind, scape and pedicel yellowish, first and 

 second flagellar joints rather stramineous, remaining joints more or 

 less dark brown; clypeus mostly yellowish as are the mandibles, 

 palpi stramineous or yellowish, posterior ocelli about as far from each 

 other as from the nearest point on the eye, but nearer to the anterior 

 ocellus than to each other; thorax shining, poorly sculptured; dorsu- 

 lum brownish, more or less stained with blackish; pro thorax mostly 



