HYMENOPTERA PARASITICA 341 



of the lateral lobes of the mesonotuni, the tegulae, a line beneath tegulae, the scutellums 

 and a broad band on hind tibiae, white ; legs, except as noted, rufous. 



Hab. Maui : Lahaina (along coast), in January. — ^Oahu : Waianae Mountains, 

 in March. — Hawaii: Hilo (H. W. Henshaw), in July. 



This species, which is parasitic on the larvae of Syrphid flies, is now widely spread 

 over the entire world, being recorded from Europe, Africa, Asia, Australia, New 

 Zealand, Chatham Islands, Japan, Hawaii, North and South America, and the West 

 Indies. 



Subfamily V. OPHIONINAE. 

 Tribe II. OPHIONINI. 



Ophion Fabricius. 



1798. Ophion Fabricius, Ent. Syst. Suppl., p. 210. 



Black, the orbits yellowish (/) O. >iigricans. 



Luteous, the eyes, claws and sheaths of ovipositor black {2) O. liiiea/us. 



(i) Ophion nigricans Cameron. 



1883. Ophion nigricans Cameron, Trans. Ent. Soc. London, p. 193. 



?, t- Length 16 to 19 mm. Obscure black, covered all over with a close 

 pale pubescence, the orbits of the eyes before and behind yellow ; the face [and some- 

 times] more or less of mesonotum, metanotum at base, pleurae and sternum, brownish 

 [rarely entirely black]. Mesonotum margined along the side to the end of the 

 scutellum, which is rugose. Metanotum finely rugose ; at the base is a striated 

 furrow. Pleurae finely punctured. Coxae finely punctured ; spurs thick, setose on 

 under side [sutures and second joint of trochanters, the tibiae and tarsi \-asy from 

 brown to ferruginous]. Antennae [in $] somewhat shorter than the abdomen [in 

 ^ somewhat longer], obscure brownish fuscous. Wings hyaline ; nervures fuscous ; 

 stigma livid. (Cameron.) 



Hab. Hawaii : Kilauea. 



(2) Ophion lineatns Cameron. 



1883. Ophion lineatus Cameron, Trans. Ent. Soc. London, p. 192, ?, ^. 



%. Length 13 mm. Luteous. Eyes, claws, and sheath of ovipositor black. 

 Wings hyaline ; stigma pallid ferruginous, darker round the edges ; nervures fuscous ; 

 A. F. H. I. 45 



