232 Records of the S.A. Museum 



Hab. New South Wales: Dovrigo (W. Heron). Type, I. 12176. 



Although this handsome little fly deviates in some impoi'tant respects from 

 tlie definition of Phymatopsis there is no other otouj) lliat can receive it, and it 

 seems best to place it in the present genus, although, like /'. hrcvipalpis Alexander, 

 it is aberrant in several points. 



SEMNOTES Westwood, 1876. 

 SEMNOTES REGIFICA sp. nov. 



General colouration yellow; mesonotal praescutuni with three confluent 

 transverse black stripes that do not attain the suture; legs black, the tibiae with a 

 broad yellow ring beyond the base ; wings dark brown, a conspicuous yellow band 

 at the base of the wing and ah oval yellow spot near the origin of Ks. 



$ Length, about "12 mm.; wing, 29 f) mm.; fore leg, femur, 12-2 mm.; 

 tibia, 16-4 mm.; metatarsus, 20-5 mm.; middle leg, femur, 15 mm.; tibia, 16-3 

 mm.; metatarsus, about 24 mm. ; hind leg, femur. 17 mm.; tibia, 20-5 mm.; meta- 

 tarsus, about 30 mm. 



Frontal prolongation of the liead short, light yellow, the nasas stout, de- 

 curved; palpi with the l)asal segments yellow, the terminal segments brown. 

 Antennae with the first scapal segment nearly- as long as the remainder of the 

 organ taken together, yellow; remainder of antennae brownish-yellow. Head 

 orange-yellow. Pronotuni yellow ; lateral margins and a confluent spot on either 

 side of the narrow yellow median area dark brown. Mesonotal praescutiuu 

 yellow with three broad black stripes, the median stripe broad but short, becoming 

 obsolete near midlength of the segment ; lateral stripes short, attaining the lateral 

 margins of the sclerite in front of the root of the wing, confluent with the median 

 stripe, not attaining the suture; scutal lobes yellow, each with two conspicuous 

 isolated brownish-black spots along the anterior margin in transverse alignment ; 

 scutellum yellow, the caudal margin of the median area dark brown ; postnotum 

 yellow. Pleura yellow ; mesopleura dark brown, sparsely variegated with obscure 

 yellow ; propleura black ; a large oval brownish-black spot on the lateral sclerites 

 of the postnotum before the root of the halteres. Mesosternum dark brown. 

 Halteres dark brown, the base of the stem yellowish. Legs with the coxae obscure 

 yellow, the outer faces suffused with dark brown ; trochanters with the outer faces 

 inf uscated ; femora black, the bases narrowly and indistinctly paler ; tibiae Avith 

 the extreme base (1-3 mm.) brownish-black, the distal half similar, the interven- 

 ing space broadh' (6-3 mm.) and conspicuously light yellow; tar.si black. Wings 

 dark brown; a conspicuous yellow cross-band just beyond the wing-root, the outer 

 margin at arculus; an oval yellow spot near the middle of the wing in cells R 

 and M, immediately before the origin of Ks; centres of cells M, Cu^ and the anal 



