HYMENOPTERA 663 



as the second joint of the hind tarsus. Wings evenly hairy, the marginal vein thick, 

 punctiform, the longest cilia of the front wing only about half the greatest width of 

 this. Length 1-3 — 1-4 mm. 



Hab. Hawaii ; 4000 ft. 



(4) Polynema scrutator, sp. nov. 



Male black, the abdominal pedicel and all the legs yellowish or brownish yellow, 

 the pedicel sometimes somewhat darkened ; all the tibiae, the middle and hind femora 

 and sometimes also the front ones brown or dark brownish, claw joint of tarsi dark. 

 Antennae with the pedicel yellow laterally, the scape sometimes brown or piceous at the 

 sides. 



Antennae long and filiform, the joints of the funicle subequal, the third about three 

 times as long as its greatest width, the pedicel compressed, dilated, being very strongly 

 rounded beneath, first funicle joint a little shorter than the second. Thorax with 

 distinct microscopic rugulosity under strong magnification, the abdomen smooth, shining, 

 with the pedicel much narrowed from base to apex. Front wings with the marginal 

 vein ovate, subpunctiform, dark, the longest cilia much shorter than the greatest width 

 of the wing, or only about half as long. Length i mm. 



Hab. Oahu, Honolulu. Though I have on various occasions found this species 

 in the town of Honolulu, I have never at any time taken a female of the males 

 described above. Males and females of P. reduvioli occur with it, in some localities. 



(5) Polynema rubriventris, sp. nov. 



Female black, the abdomen ferruginous, sometimes partly dark or infuscate ; 

 the legs, except the apical tarsal joints, entirely yellow, as also the two basal and some- 

 times the third antennal joint ; the club and three preceding funicle joints black, while 

 the more basal funicle joints are mostly more or less sordidly yellowish or brown. 



Antennae slender, the pedicel compressed, obconic, the first funicle joint half as 

 long as the very slender and elongate third, the three apical joints of the funicle 

 subequal, slender, three or four times as long as wide, the club as long as the two 

 preceding joints. Thorax hardly shining, the minute surface sculpture or rugulosity 

 distinct, the impresso-punctate transverse line on the scutellum about two-thirds the 

 length of the latter from its front margin. Abdomen smooth and shining, the ovipositor 

 distinctly subexserted. Marginal view of front wings subovate, the longest cilia not 

 half as long as the greatest width of the wing. Length f6 — 175 mm. 



Hab. Oahu ; 1500 ft. and upwards. 



