BY THOMAS G. SLOANE. 373 



of the elytra infuscate; the head is blackish in mature specimens; 

 the elytra are usually iridescent; the discoidal puncture on each 

 elytron is situated along the fifth stria, considerably before the 

 middle, — this is a constant character and valuable as an aid in 

 the recognition of this species; the strite of the elytra are faint 

 and become obsolescent after the third. 



Habits : — Found under sticks or stones near water in very 

 damp situations. 



Hah. : Queensland — Gayndah (Masters), Brisbane (Coates) ; 

 N. S. Wales — Clarence River (Lea), Junee, Carrathool, Urana, 

 and Mulwala (Sloane). 



Tachys macleayi, n.sp. 



Oval, subdepressed, laevigate. Head large, wide between eyes, 

 prothorax subcordate ; posterior angles strongly marked, acute ; 

 base (behind posterior angles) narrower than apex: elytra smooth, 

 widely and lightly convex; two discoidal punctures on each 

 elytron. Head piceous, prothorax obscure testaceous; elytra black 

 with a large quadrate spot at shoulder, and a smaller round spot 

 above apical declivity on each elytron pale testaceous; legs pale 

 testaceous; antennce pale testaceous with joints 3-6 infuscate. 



Head lightly and widely bi-impressed between eyes. Antennae 

 filiform, long, slender. Prothorax lightly transverse, widest at 

 anterior marginal puncture, angustate posteriorly; sides strongly 

 rounded antei'iorly, decidedly sinuate before posterior angles ; 

 anterior angles rounded; posterior angles tria^igular, prominent, 

 acute; basal angles rounded; lateral border narrowlj^ reflexed, 

 reaching to sides of head; median line distinct; a well marked 

 impunctate transverse line defining basal part of prothorax and 

 reaching sides behind posterior angles. Elytra much broader 

 than prothorax, wide between shoulders; base lightly rounded and 

 margined on each side of peduncle; humeral angles obtuse; sides 

 rounded, narrowed rather obliquely to apex; each elytron obtusely 

 rounded at apex; three faint substriate impressions at apex of 

 each elytron ; anterior discoidal puncture just behind humeral 



