344 PARASITIC HYMENOPTERA, I., 



less shining than mesonotum ; a stout keel down centre. Meso- 

 pleural furrows not very distinct, smooth. Antennae at 

 least 43-jointed, flagellum closely pilose. Both the basal two 

 abdominal segments are longer than wide. 



On the whole, this species agrees best with O-piits, but it 

 approaches Biosteres closely in the alar neuration. The 

 relative size of the stigma, and the relative length of the 

 abscissae of the radius do not afford very definite generic 

 characters. It is to be noted that the late Dr. W. H. 

 Ashmead (These Proceedings, 1900, p. 357) records Dia- 

 rhasma carpocapsir, Ashm., from New Zealand, as a probable 

 parasite of Dacus tryoni. 



EVANIID^. 



AULACINUS PALLIDICAUDIS, Sp.n. 



cf $ . Black ; antennae, apex of the four front femora, 

 four front tibiae, and tarsi, rufo-testaceous ; middle joints of 

 flagellum paler, more yellowish in colour ; base of hind tibiae 

 and apex more narrowly, rufo-testaceous, as are also, except 

 at apex, the mandibles ; wings hyaline, iridescent, apex 

 with a narrow smoky border, stigma and nervures black ; 

 second transverse cubital nervure paler than the others, 

 second recurrent nervure received very shortly beyond it, 

 third at a greater distance before first : first abscissa of radius 

 with a steep, oblique slope, and a little shorter than third, 

 second shorter than either. Sheaths of ovipositor pale ful- 

 vous, darker at base. Length, 8: terebra, 7 mm. 



Head smooth, opaque, wider than thorax, temples a little 

 longer than eyes, rounded behind; occiput rounded. Hinder 

 ocelli separated from eyes by one-half more than from each 

 other. Third joint of antennae a little shorter than the 

 fourth. Palpi testaceous, basal joints blackish. Mesonotum 

 and scutellum irregularly reticulated, the former more 

 strongly towards apex ; parapsidal furrows distinct, straight, 

 oblique ; striae on scutellum transverse, an opaque, non- 

 striated space on middle of apex. Metanotum in centre 



