352 FAUNA HAWAIIENSIS 



7. Head, except the occiput and a large spot enclosing the ocelli which are black, 

 lemon-yellow ; prothorax, scutellum, mesopleura including the sternum, and 

 the front and middle legs, pale yellowish. $ {?) -A. delicattis. 



([) Atrometiis flavifrons, sp. nov. 



%. Length 5 to 7 mm. Black, subopaque, the head coriaceous, the mesopleura 

 finely, closely, evenly punctate, the metathorax rugose, the hind coxae coarsely coriaceous; 

 a dot on temples just back of eyes, anterior orbits, face below the antennae, clypeus, 

 mandibles, cheeks, an annulus at apex of scape, prothorax, except a spot on the proster- 

 num, tegulae, front and middle coxae and trochanters, extreme apex of hind coxae, 

 sutures of trochanters, and the extreme base of their femora and extreme base of their 

 tibiae, yellow ; rest of front and middle legs, except more or less of their tarsi, testa- 

 ceous ; apices of front tarsi, apices of joints i to 3 and joints 4 and 5 of middle tarsi, 

 fuscous or black ; hind coxae and femora, except as noted, black (rarely reddish-brown), 

 their tibiae and tarsi, dark brown or fuscous, the tarsi sometimes black ; scutellum more 

 or less brownish ; dorsal abdominal segments 2 to 7 at sides ventrally marked with 

 reddish, rest of the abdomen black, the sheaths of the ovipositor being not quite as long 

 as the basal joint of hind tarsi. Wings hyaline, the stigma and veins dark brown. The 

 eyes are very large, converge below and extend to the base of the mandibles. The 

 antennae are 27-jointed, or, with the pedicellus, 28-jointed, black, and as long as the 

 body ; the flagellum being slightly thickened towards apex, the basal joints elongate, 

 cylindrical, the first the longest joint, although only slightly longer than the second, 

 about 9 times as long as thick. 



t- Length 4*5 to 5 mm. Agrees very closely with the % in colour, except that the 

 temples are usually immaculate, the scutellum black, the front and middle tarsi paler, the 

 hind femora reddish-brown, the hind tibiae fuscous towards base and apex, their tarsi 

 fuscous, while the antennae, with the pedicellus, are only 24-jointed. 



Hab. Hawaii : Kona (2000 feet), in August ; Olaa, in December. — Lanai, in 

 July. 



{2) Atrometus tarsahis, sp. nov. 



%. Length 6 mm. Allied to A. flavifrons but differs as follows : the face from 

 the antennae downwards, but not the superior orbits, the prothorax beneath, the scape 

 and the ring-joint, are yellow ; sternum black ; the hind legs are rufous, their coxae 

 above and the first joint of their trochanters above, have a dusky blotch, their tarsi 

 being fuscous or subfuscous ; the third and fourth dorsal abdominal segments ventrally 

 at sides are rufous, the following segments being black. The antennae are 23 or 

 24-jointed. 



