171 



Text-fig. 6: — Apistomyia tonnoiri n.sp. «, Hypopygimn of c?, dorsal view (x 

 100). b, the same, lateral view, c, end of abdomen of ?, lateral 

 view ( x 50). 



large inverted U-shaped mark oi' silver on vertex and two small silver dots, one 

 behind eaeh eye, on occiput; face strongly marked with silver grey. Labrum- 

 epipharynx and hypopharynx (Plate xlv., fig. 2, e.) half as long 1 again as in d- 

 Mandibles present (Plate xlv., fig. 4, c), 1.2 mm. long, exceedingly slender, spear- 

 like, sharply pointed, and carrying minute forwardly projecting- barbs on the 

 inner margin. Abdomen cylindrical, broader than in <?, apex downeurved and 

 slightly pointed; colour velvety black with the same type of pattern in silver as 

 in d 1 . but the markings larger and more conspicuous, as shown in Text-fig. 7; seg. 

 1 with the lateral basal spots not connected across the dorsum; seg. 6 with two 

 silver spots. End of abdomen with a pair of subcorneal appendages, as shown 

 in Text-fig. 6, c ; gon-apophyses of seg. 9 rather large, subcorneal, with dark, 

 rounded apices carrying numerous minute hairs. 



V2 



Text-fig. 7:— Apistomyia tonnoiri n.sp., 9, colour pattern (x 11). 



Types : — £ holotype. ? allotype and four paratypes in Cawthron Institute 

 Collection, Nelson. N.Z.; also a single paratype ? in British Museum of Natural 

 History, London. 



