40 THE DIPTEBA-BBAGHTCSBA OF TASMANIA, 



Fig. 21. Front of Anabarrhynchus pallidw. 



Male. Head produced in front; face grey, receding. 

 Front light yellow-brown, with two sharply-defined black 

 spots, which are situated midway between the eyes and 

 the frontal suture, the whole bearing short pubescence. 

 Proboscis projecting prominently forwards, more so than 

 in any other species of Anabarrhynchus. Antennae with 

 first ioint grey-brown, quite grey at the base, and bearing 

 long black hairs ; second joint brown, third black. Eyes 

 very widely separated. Thorax yellow-brown, with traces 

 of throe darker brown longitudinal stripes. Abdomen a 

 uniform light grey, bearing short white depressed pubes- 

 cence. Femora, tibiae, and tarsi yellow, the tips of tho 

 tarsal joints darkened; the femora with a few, the tibiae 

 with many, black bristles. Wings hyaline, the veins light 

 yellow-brown, the fourth posterior cell slightly contracted 

 towards the wing margin. 



Female resembles the male very closely, the eves being 

 only a little more widely separated, the antennae rather 

 browner, and the abdomen a trifle more pointed. 



A. pallidui is a somewhat aberrant species, differing 

 from the other members of the genus in the less hairy 

 front and the projecting proboscis. The light colouring 

 and two sharply-defined frontal spots make identification 

 easy. It frequents sandhills near the coast, in which 

 situations its colouring is clearly protective. It occurs 

 during February, but seems to be scarce. 



ANABARRnVNCHUS UMBRATILIS, Sp. nOV. 



A medium-sized, robust species, distinguished by the 

 light vollow-brown femora and olive tibiae. Front with 

 lower third light grey, upper two-thirds brown, with two 

 dark brown Buffused -puts; thorax brown, with five loo 

 gitudinal brown stripes; abdomen black; wings hyalino. 



Length. Female, 10 mm. 



Hab. Wedge Bay. 



Female. Face light grey. Front with lower third light 



