614 STUDIES IN AUSTRALIAN ENTOMOLOGY, NO. XII., 



Sarticus impar, n sp. 



(J. Elongate-oval, convex ; elytra oval, strongly, fully and 

 simph' striate, interstices 3rd, 5th and 7th wide; 2nd, 4th and 

 6th narrow, 3rd 3-punctate, a short striole at base of first inter- 

 stice. Black; mouth-parts and tarsi piceous-red. 



Head oval (2-4 mm. across eyes), convex, Isevigate ; supra- 

 antennal carina short, arcuate; eyes convex, not very prominent, 

 lightly enclosed at base. Prothorax a little broader than long 

 (3-1 X 3-4mm.), widest about middle, hardly wider at base (2*4 mm ) 

 than at apex (2-35 mm.); sides lightly rounded; apex truncate, 

 basal angles obtuse but a little marked; border narrow on sides, 

 hardly wider towards base, obsolete on middle of apex and on 

 base between lateral basal impressions ; median line lightly 

 impressed, a punctiform fovea at its posterior extremity; lateral 

 basal impressions wide, short; posterior marginal puncture at 

 basal angle inside the border on a narrow raised space dividing 

 the lateral basal impressions from the border. Elytra oval 

 (7*2 X 3*9 mm.), convex, lightly and evenly rounded on sides; basal 

 border joining lateral border without interruption at humeral 

 angles; striae strongly impressed, six inner ones attaining base, 

 seventh strongly impressed, rising from lateral channel a little 

 behind shoulder; 1st and 2nd interstices about equal, narrow, 

 narrower and more convex on apical declivity, 3rd wide, not 

 narrower or more convex on apical declivity, 4th and 6th narrow, 

 5th and 7th wide, 9th narrow, seriate-punctate, 10th long and 

 very narrow. Prosternum bordered on anterior margin; inter- 

 coxal part with basal declivity rounded; mesosternum with inter- 

 coxal declivity widely and ver}'^ lightly concave; episterna with 

 concavity deep and punctulate ; metasternal episterna short. 

 Basal ventral segment punctate, three apical segments punctate, 

 the puncturation near the anterior margin and extending across 

 the segments. Length 13, breadth 3*9 mm. 



Hab. — Kelson; Western District of Victoria (Blackburn). 



A remarkable and isolated species quite aberrant in the genus 

 Sarticus; the interstitial sculpture of the elytra distinguishes it 



