BY ARTHUR WHITE. 17 



arrangement. Antennas considerably longer than the head, 

 basal joint dilated and slightly longer than the second, 

 both hairy ; the third joint bare and slightly longer than 

 the first two together, with five distinct annulations, the 

 basal one being about as long as the four following. 

 Thorax nearly quadrangular, with rounded corners. Abdo- 

 men with the second segment longest, the following seg- 

 ments gradually diminishing in length ; colouring usually 

 black with orange markings, which differ in the two sexes. 

 Legs with two spurs on each of the middle and hind 

 tibiae. Wings with conspicuous black bands, which are 

 more extended in the male than in the female. 



One species belonging to this genus has been described 

 from Tasmania ; it is the only one known to occur in the 

 Australasian region. 



Chrysops testaceus, Macq. 



This species is described as having the abdomen testa- 

 ceous-brown, with yellow spots ; wings with a dark trans- 

 verse band, and an apical spot. 



It is unknown to me. 



Pangonia, Latr. (Fig. 12b). 



The genus Pangonia (sensu lato) is distinguished by 

 having the hind tibiae spurred, the third joint of antenna? 

 with eight annulations, of which the first is broad and 

 short, and by the much-produced proboscis, with small 

 pointed sucker-flaps. 



Eyes either bare or hairy, joined in the male, separated 

 in the female. Thorax broad and robust. Abdomen very 

 broad and short, slightly pointed in the male, rounded 

 in the female. Wings with the anal cell closed, the first 

 posterior cell either closed or open. 



The habits of the species of Pangonia are similar to 

 those of the genus Tabanus. The males, which are much 

 rarer than the females, frequent flowers, whilst the females 

 attack intruders into their resorts in the* same way as 

 those of Tahanus, but they may also be found in situations 

 similar to those of the males. 



Pangonia is an enormous genus of world-wide distribu- 

 tion ; for the sake of convenience it is split up into the 

 following subsidiary genera : — 



1. Wings with the first posterior cell closed. 2 



2. Eyes bare. Pangonia, Latr. 

 Eyes hairy. Erephopsis, Ricardo. 



Wings with the first posterior cell open. 3 



