200 REVISIONAL KCyrKU ox AISTRALIAN CAKAIilDAE, 



83 (80) Prothorax reddish testaceous. 27 mm simiUs Blackb. 



84 (73) Elytra with apical striole short, not extending forward to setiferous 



puncture of apical declivity. 1.8 — 2.1 mm sinuatUolUs SI. 



85 (72) Elytra with fixed setiferous discal puncture outside third interstice or 



its position. 



86 (87) Elytra with the fixed, setiferous, discal puncture on fourth interstice. 



Testaceous; head, ape.x, and a median fascia piceous. 2.3 — 2.5 mm. 



triangularis Niet. 



87 (86) Elytra with the fixed setiferous discal puncture outside fourth stria or 



its position. 



88 (89) Size major, form robust, elytra wide, oval, convex. 2.8 mm. 



maxiirsi SI. 



89 (88) Size minor, form depressed. 2.3 — 2.6 mm iranswrificoUis Macl. 



90 (69) Elytra laevigate (apical striole obsolete). 4 maculate. 2.6 — 2.8 mm. 



maclrayi SI. 



Tachys amplipennis Macleay (1871). 



A good many specimens were obtained on a sand-bank of the Upper Nor- 

 manby River, near Cooktown, in June; these were dislodged from their hiding 

 places ill the sand by splasliing water from the river. 



Tachys victoriexsis Blackbiii-n (1891) 



Very nearly allied to T. amplipennis. It is unknown to me in nature; the 

 following note, dated 16-3-1903, was sent to me by the late Rev. Thos. Hlaek- 

 burn, after I had sent him a specimen of T. amplipennif^. '"("oniparrd with 

 specimen sent as 7'. amplipennis — very close, disc much darker (in strong con- 

 trast to shoulders and apex) ; joints 5 — 11 of antennae <iuite dark fuscous in 

 contrast to basal joints. Prothorax less transverse, more naiTowed in front 

 and with the greatest width more distinctly in front of the middle. I think the 

 two are distinct; at any rate T. victoriensis is a well marked mountain race, 

 even if subsequent investigation produces intermediate forms from other places." 



Tachy.s N-f:Rvosus Sloane (1903). 



In July, 1916, I found T. nervcisus plentiful on tiie sandy bed of the Laura 

 River at tlie terminus of the Cooktown — Laura railway. It was a very notice- 

 able species, from its pale-coloured, widely spread legs in contrast witii the 

 darker colour of tiie upper surface of the body, which is sometimes almost 

 brown on the <iisc of the elytra, a.s it ran qui('kly o\er the sand before taking to 

 the wing, when disturbed by the splashing of water over the sand. The ad- 

 ditional striae, which have been developed on interstices 1 — 8 of the elytra, are 

 deepest on the disc; one specimen, with the extra striae less strongly impressed 

 than usual, shows, at the apex, practically the same striae and interstices as 

 T. amplipennis Mac!. 



'I'AfllYS l-.ANKSl, n.sp. 



Robust, oval, convex. Front shortly bi-impressed. Prolhorax transverse, 

 wider across base than apex; basal angles rectangular; a punctate line across 

 middle of ba.se. F,lytra ovate, fully striate; seventh stria very shorl, situated 

 between humeral and apical maculae, fifth stria reaching margiiiid channel at 

 base, eighth stria entire, deep, simple; ninth interstice convex; disc l)ii)unctate 

 on third interstice; a puncture on inner side of apical striole, far back. Piceous-; 

 pronotum of a bronzy tint; elytra 4-maculate, humeral macula rather elongate, 

 extending from fifth stria to margin at ba.se, apical nuicula lietwcen third and 

 eighth striae, apex lund-testaceous. Length, 2.8, breadth. 1.2 nun. 



