362 ON THE AUSTRALIAN BEMBIDIIDES, 



macula, fifth and sixth not extending past anterior margin of 

 ante-apical macula, fifth reaching basal border, sixth not reaching 

 base, seventh obsolete (only noticeable under a lens on Ijlack part 

 of space between sixth and eighth); lateral stria deeply impressed, 

 curving towards margin posteriorly; inner interstices convex; 

 submarginal interstice very convex, bipunctate near base and at 

 beginning of apical curve; lateral border extending on to base as 

 far as fifth stria. Anterior tibite shortly oblique above aj)ex on 

 external side; a short acute spur above obliquity. 



Length 3-1, breadth 1-3 mm. 



llab. : King's Sound (Froggatt; Macleay Museum). 



Allied to T. striolatnii, Macl., but larger and broader; the pro- 

 thoi'ax is more transverse and wider across the base, less rounded 

 on the sides, the anterior angles more strongly marked; the post- 

 humeral macula of the elytra is elongate; there are six (not five) 

 strise on each elytron, the first, second and fifth striee reaching the 

 base. The whole of the dark part of the elytra, excepting the 

 sides, is strongly striate; the third and fourth strife do not reach 

 quite to the base, but there is not the wide Ifevigate basal space 

 that is so noticeable in T. striolatus. 



Tachys froggatti, n.sp. 



Robust, oval, convex. Head wide, lightly bi-impressed; pro- 

 thorax transverse, wider across base than apex; elytra ovate, six 

 inner striie strongly impressed, lateral stria and marginal 

 channel strongly impressed, interstice between them convex. 

 Black, head and prothorax with a greenish tinge; each elytron 

 with a testaceous macula about posterior third; under surface 

 piceous, legs (excepting coxte) testaceous, antennce infuscate 

 towards apex. 



Head, prothorax and legs in every way resembling those of T. 

 bvprestioides, SI. Elytra similar to those of 7\ huprestioides in 

 shape, sides and apex; stria? hardly so deep, first entire, second 

 and third reaching almost to base, 4-6 rising at a considerable 

 distance from base on one level. 



Length 2-2-2-6, breadth 1-M5mm. 



Hah. : King's Sound (Froggatt; Macleay Museum). 



