[229] HYMENOPTERA 235 



being parallel, the first and second segments shagreened, the first one 

 third longer than the second, the following segments smooth and 

 polished, the third segment a little shorter than the second. 



Type. — Cat. No. 5674, U. S. Nat. Museum. From St. Paul 

 Island, August 25 (Fur Seal Commission). 



In describing this new species of Neuroteles^ as defined to suit our 

 American species, the opportunity is taken to state my disagreement 

 with Mr. Davis in his removal of Neuroteles americana^ N. ulmicola 

 and N. liriodendri to the genus Camerotops Forster, as also in 

 making the last two synonymous with Brephoctonus Jlavosus Ashm. ; 

 all are distinctly different. 



Mr. Davis has overlooked important cephalic and metathoracic dif- 

 ferences not readily appreciated by a beginner. 



Genus Deleter Forster. 



DELETER KINCAIDI sp. nov. 



Female. — Length 2 mm. Polished black ; apex of second dorsal 

 abdominal segment and the third segment entirely testaceous ; antennae, 

 except scape above, and the legs brownish, the trochanters, knees, 

 base of tibiae and the tarsi paler or yellowish ; palpi white ; tegulae 

 and stigma pale yellowish, the costae and internal veins dark brown. 



The antennae are 22-jointed, slightly thickened toward apex, the five 

 or six joints before the last being quadrate or nearly so, not or scarcely 

 longer than thick, the first three or four basal joints of the flagellum 

 being a little more than twice longer than thick, narrowed toward base. 



Abdomen, except the first segment, smooth, impunctate, the first 

 finely aciculate, the second with two oblique depressions basally. 



Male. — Differs from female in having the antennae filiform, the 5 

 or 6 terminal joints longer than thick, the abdomen, except the first 

 segment being brownish-piceous, while the legs, except the hind coxae 

 and femora and tips of hind tibiae, are yellowish, the hind coxae and 

 femora black, the tips of the hind tibiae fuscous. 



Type. — Cat. No. 5754, U. S. Nat. Museum. From Belkofski, 

 July 22 (Fur Seal Commission). 



DELETER FLAVIFRONS sp. nov. 

 Male. — Length 3 mm. Polished black ; face below antennae, man- 

 dibles and two stripes on the scape lemon-yellow ; palpi, tegulae, a dot 

 In front, epitegulse, apex of front coxae, their trochanters, their femora 

 except stripe beneath the tibiae and tarsi beneath., sutures of middle and 



