350 FAUNA HAWAIIENSIS 



The antennae, in the %, are a Httle shorter than the body, involute at apex, the 

 last joint being fusiform, the thickest joint and as long as the two preceding joints 

 united, the penultimate and antepenultimate joints being about equal and only a little 

 longer than thick, the first joint of the flagellum is elongate and very nearly as long 

 as the second and third joints united ; in the t they are longer than the body and 

 slenderer toward apex, the terminal joints being proportionately longer, the last, 

 however, being shorter than the two preceding united, which themselves are twice 

 as long as thick, the first joint of the flagellum being distinctly shorter than the second 

 and third united. The basal transverse carina of the metathorax is distinct in the % 

 but absent in the J. Wings hyaline, only faintly tinged, the disco-cubital blister-like 

 spot pear-shaped, the disco-cubital nervure (unlike other species) distinctly angularly 

 broken very near its middle and thus easily distinguishing the species from all others. 



Hab. Hawaii : Kanai (2000 — 3000 feet), in January and February, (4000 feet), 

 in July ; Olaa, in September ; Kona (4000 — 4500 feet). — Lanai (2000 feet), in Feb- 

 ruary ; Waimea (4000 feet), in May. — Molokai, in mountains (4000 feet), in January, 

 July and September. 



(9) Enicospilus longicornis, sp. nov. 



t. Length 15 to 17 mm. Ferruginous ; orbits and face below the antennae 

 whitish ; eyes large, black or brown-black ; wings hyaline, or only faintly tinged, the 

 stigma and the costal veins brown, the parastigma, stigma at base and the outer nervure 

 of the marginal cell, as well as the blister-like spots in the disco-cubital cell, yellowish. 



The antennae are long and slender, longer than the body, tapering off at apex, 

 the terminal joints about of an equal length, more than 2^ times longer than thick, the 

 first joint of the flagellum being about as long as the second and third united. The 

 metathorax has no trace of the basal transverse carina. The disco-cubital cell, unlike 

 the 8 previously described species, has two blister-like spots, the larger of which is 

 of an irregular triangular shape, the smaller being more or less ovate. 



Hab. Hawaii : Kilauea. 



Tribe IV. ANOMALINI. 



Atrometus Forster. 

 1868. Atrotnetus Forster, Verh. d. naturh. Ver. Rheinl., xxv. p. 146. 



This genus is represented in the Hawaiian fauna by seven species, separable with 

 the aid of the following table. 



