170 



Plantation (Timberlake) ; Maui, Kipalinlu (Swezey) ; Ha- 

 waii, Pahala (Swezey). 



Bred from TepJtrifis cnissipes breeding in the heads of 

 Bidens by the late F. AV. Terry, Honoluln, Jan. 1906, by 

 P. H. Timberlake, Honolnln, Jnly 1918, and by J. C. Brid- 

 well, Wailnkn, Mani, Ang. 1918. 



This species is an immigrant, donbtless arriving with its 

 host, from what conntry we can only conjecture. The habits 

 of the species were stndied by Mr. Terry in Jan. 1900. and 

 Mr. Swezey's material from Mani was taken the same year. 

 This is donbtless the Bvacon recorded by Dr. Perkins in the 

 introduction of the Fauna Hawaiiensis as attacking Tephritis. 



Type ? and allotype $ in the collection of the Hawai- 

 ian Entomological Society ; paratypes in the U. S. National 

 Museum, in the collection of the Hawaiian Sugar Planters' 

 Association and in the private collections of P. H. Timber- 

 lake and of the author. 



Opiinae. 

 4. Opius lantanae n. sp. 



$ Length 2 mm. 



Black ; the legs, including coxae, palpi, clypeus and mandibles in part, 

 scape and pedicel (and usually the first tergite and the anterior half of 

 second) yellow; tegulae brownish; wings hj'aline, the ncrvures brown. 



Smooth and shining, highly polished except the face, which is very 

 slightly microscopically roughened ; propodeum and first tergite rugose ; 

 second tergite slightly aciculate sublaterally ; the suture of the connate 

 second and third tergites finely crenulate or almost smooth. 



Head a little more than twice as broad as long; mandibles entire 

 beneath, widely separated from the clypeus ; the malar space as long as 

 the width of the mandible ; face with a rounded median ridge ; clypeus 

 not twice as broad as long; eyes oval, parallel; posterior orbits not nar- 

 rowed below, narrower than the width of the eye ; lateral ocelli about 

 four times their width from the eye margin; antennae about 23-jointed, 

 inserted above the middle of the eyes; first joint of the fla,gellum about 

 three times as long as broad, second and following joints successively 

 shorter, all as long as broad. 



Mesonotum evenly convex, not impressed ; parapsidal furrows indi- 

 cated as deep rounded impressions at the anterior margin : mesopleural 

 impressions imperfectly crenulate. 



