[141] HYMENOPTERA 147 



The head is polished, impunctate, seen from in front wider than long 

 and with some short, sparse hairs anteriorly below the insertion of the ' 

 antenna;. Eyes oblong-oval, faintly hairy. Antennae i i -jointed, black, 

 and reaching to the middle of the abdomen ; the scape is as long as the 

 pedicel and the first two joints of the flagellum united ; the first and 

 last joints of the flagellum are equal in length and a little longer than 

 the intermediate joints which are subequal and scarcely more than 

 twice as long as thick, the first and the last joints being a little more 

 than thrice as long as thick ; the pedicel is not quite two-thirds the 

 length of the first joint of the flagellum. 



The thorax is smooth and shining, the mesonotum having three dis- 

 tinct furrows, the pronotum being very short while the metathorax is 

 abruptly shortened and faintly alutaceous. 



The abdomen is ovate, polished black, subdepressed, wider than thick 

 dorso-ventrally, a little longer than the head and thorax united, the 

 ovipositor subexserted, the petiole extremely short, transverse and 

 striate ; body of abdomen has an elevated rim at extreme base where 

 it unites with the petiole. 



Type. Cat. No. 5522, U. S. Nat. Museum. From St. Paul Island, 

 August 10 (Fur Seal Commission). One specimen. 



This species is allied to L. stigmatus Say but it is slightly larger 

 and easily separated by the relative lengths of the flagellar joints of an- 

 tenna and by the difference in the pedicel. 



Super-family VI. CYNIPOIDEA Ashmead. 



Family FIGITID^E. 



Subfamily EUCCELIN^E. 



Genus Tetrarhapta Forster. 



TETRARHAPTA ALASKENSIS sp. nov. 



(PI. IX, fig. 2.) 



Female. Length 1.4 mm. Polished black ; the mandibles, knees, 

 base and tips of tibiae and all tarsi, testaceous or reddish ; wings hya- 

 line, largely pubescent, the apex of the anterior wings subemarginate, 

 the veins brown-black, the marginal cell open all along the outer 

 margin. 



The 1 3- jointed antennae terminate in a large 4-jointed club, the 

 joints being fluted, the first being a little shorter than the second, the 

 second and third subequal, the last large, ovate, one-half longer than 



