354 FAUNA HAWAIIENSIS 



(6) Atromettts hazuaiiensis, sp. nov. 

 (Plate IX. fig. 5, ?.) 



$. Length 10 to iO"5 mm. Black; the head, except the occiput and an oblong 

 spot on the vertex extending forwards to the base of the antennae and enclosing the 

 ocelli, the prothorax, a hook-shaped spot on each side of the mesonotum anteriorly and 

 extending along its outer margins to the tegulae, the mesopleura, except a spot beneath 

 the tegulae and on the sternum, the scutellum, an oblong spot on the sides of the 

 metathorax connected with a band across its base (neither so distinctly defined nor as 

 yellow as in the t), and the anterior and middle coxae and trochanters, lemon-yellow ; 

 the rest of the front and middle legs, except the tarsi, are reddish, the tarsi being more 

 or less fuscous ; the hind legs are rufous, the coxae and trochanters above marked with 

 black, the extreme base and apex of their femora, the apex of tarsal joints i to 3 and 

 the following joints black or fuscous ; abdomen black, the venter and more or less of 

 dorsal segments 2 to 6 ventrally, testaceous. Wings hyaline, the stigma and veins dark 

 brown. Antennae black, 30-jointed, with the first three joints pale, although dusky 

 above. 



$. Agrees very closely with the female, except that the antennae are 34-jointed, 

 and that the mesopleura, except a small black spot just beneath the tegulae, are wholly 

 yellow. 



Hab. Hawaii : Kilauea, in August. 



(7) Atrometus delicatus, sp. nov. 



Z. Length 4-5 mm. Head, except a large spot on the vertex enclosing the ocelli, 

 the prothorax, the mesopleura wholly, and a stripe on the sides of the metathorax, 

 yellow ; the palpi, the anterior and middle coxae and trochanters and the hind coxae at 

 base, white, rest of the front and middle legs, except last joint of tarsi, honey-yellow, 

 the hind legs red, their coxae except at base, their trochanters above, the extreme base 

 of femora and tarsi, black or fuscous. Wings hyaline, the stigma and veins brown. 

 Antennae 25-jointed, the first three or four joints pale, the following black or brown- 

 black. 



%. Agrees well with the male, except that the thorax is brown, with the lateral 

 mesonotal lobes, a spot beneath tegulae, the lower part of the mesopleura and the lower 

 part of the metapleura blackish, while the hind coxae and the legs are paler than in 

 male, without any black, although a little darker than the middle legs. 



Hab. Kauai : Koholuamo, in April. 



