260 A NEW MITE. 



Heteropus alastoris, n.sp. 



5. Head i-ounded, coming to an obtuse point at the tip ; 

 thorax broadest and swelling out in the centre, constricted at the 

 junction with the abdomen, marked with parallel wavy lines 

 running into the abdomen ; legs of about equal length, hairy ; the 

 whole insect pale yellow, f of a line in length ; abdomen globular 

 and semi-transparent, the lower half milky white, eight times the 

 length of the head and thorax combined. 



^. Very much more elongate, with the head rounded in front ; 

 abdomen narrow, of uniform width from the shoulders towards 

 the apex, which is rounded. 



Hab. — Granville, Sydney ; in the nest of Alastor eriurgus, 

 Sauss. 



