Miller and Watt. — Study of Jew Zealand Entomology. 279 



The pupa is tear-shaped ; the posterior end. bearing the two respiratory 

 tubes, is much flattened and constricted. Anteriorly it is much swollen, 

 well rounded, and corpulent. 



The colour is light brown, with a broad conspicuous dark medio-dorsal 

 stripe extending the whole length of the pupa. On the sides arc several 

 (about 4) very faint narrow lines, much broken and interrupted, running 



9 

 Fig. 9. 



-Pupa of S. ropalus. 



parallel with the medio-dorsal. The integument is hard and roughened 



in. : breadth 



bv numerous minute transverse rugae 



at posterior extremity, rV ln - 



Length of pupa, 

 at anterior end. A in. 



The pupa is to be found, as a rule, near the butts of the leaves, on the 

 underside. The duration of this stage is about three weeks. 



Hab. — Auckland (Dr. Sinclair) ; Kekerangu, 3.000 ft. (Hudson) : Dun- 

 edin (Hutton) : Wanganui, October (M. N. W.); Marlborough. December 

 (D.M.). 



No. 7. Phytomyza albiceps Mg. Plates II and III. 



As far as it has been possible to ascertain, this little flv has not till now 

 been recorded from Xew Zealand. It is necessary, therefore, that a detailed 

 description be included in the present paper. 



The adult fly (Plate III. fig. 6) is small, black in ground-colour, bur 

 with a covering of minute silvery -grey 

 pubescence. Length of imago, $, 1 mm. : 

 wing. 1-25 mm. Length of imago, $, 1 -5 mm. ; 

 wing, 2 mm. 



Eves reddish-brown, broadly dichoptic. 

 with minute scattered silvery hairs ; ver- 

 tex and front broad and yellowish, this 

 colour (absent on the darker frontal lunule) 

 being due to the presence of a dense and 

 minute pubescence. On the front are a 

 pair of parallel longitudinal depressions, 

 assuming in certain lights an orange colour. 

 Ocellar triangle dark reddish brown, more 

 or less circular, the ocelli shiny dark orange 

 and well separated. A pair of strong 

 parallel proclinate ocellar bristles, one on 

 each side of the anterior ocellus (fig. 10, ob) : 

 a pair of strong reclinate divergent post- 

 ocellar bristles (fig. 10, pob) placed more 

 closely than ocellar pair. Inner and outer 

 vertical bristles strong, the latter diver- 

 gent (o), the former convergent (i). A 

 row of strong shorter post-orbital bristles 

 (fig. 11, po) extending to lower margin 

 of head; 3 strong reclinate upper fronto- 



orbital bristles (fig. 1". ufo) : a single strong convergent frontal bristle 

 (fig. 10,/) ; a row of smaller orbital bristles (fig. 10, or). Antennae inserted 



Fig. 10. — Dorsal portion of head 

 of P. albiceps. ob, ocellar 

 bristles ; pob, post - ocellar 

 bristles ; o, outer vertical 

 i, inner vertical ; /. frontal , 

 ufo, upper fronto - orbital ; 

 or, orbital bristles. 



