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large, sliallowly notched in front. Antennae long and thin, 

 eleventh joint the length of tenth and obscurely semidouble. 

 Prothorax about as long as wide, sides rather strongly 

 obliquely dilated from near base to near apex, and then 

 gently rounded, apex distinctly incurved to middle, base 

 incurved to middle and narrowly upturned, with a vague 

 medio-basal depression, and one towards each side in front; 

 with moderately dense, shallow, subasperate punctures, but 

 becoming sharply defined on sides. Elytra much wider than 

 base of prothorax; each with four rather feeble discal costae; 

 with dense and fine punctures or shagreened. Length, 

 11-14 mm. 



Hab. — Queensland: Raine Island and Claudie River 

 (J. A. Kershaw). Type in National Museum; co-type, 

 I. 6751, in South Australian Museum. 



Nearer to inquisitor than to any other species known to 

 me, but consistently larger, prothorax and head much wider, 

 and colour and punctures different; from lateralis it is at once 

 distinguished by its punctures. Mr. Kershaw took three 

 specimens, of which one with a narrower prothorax than the 

 others has been made the type, it is probably a male; the 

 others are certainly females, and differ from it in being 

 stouter, prothorax more dilated to apex (where the width is 

 slightly more than the length), abdomen more convex and 

 legs and antennae shorter; on the type the antennae extend 

 to the tips of the elytra, on the others they end some distance 

 before the tips. Most of the upper-surface of the head is 

 deeply infuscated, there is a conspicuous but somewhat 

 irregular median infuscate vitta on the pronotum, and the 

 sides are also infuscated, on the elvtra the infuscation is 

 lateral (but not marginal), and is more pronounced on the 

 shoulders than posteriorly; parts of the abdomen and meta- 

 sternum and the knees are lightly infuscated. 



OXACIS VITTIPENNIS, n. sp. 



c? . Pale flavous; an infuscate stain between eyes, pro- 

 thorax with a median infuscate vitta touching apex but not 

 base, each side with a vitta touching neither base nor 

 apex, each elytron with two long infuscate vittae, abdomen 

 and metasternum infuscated in parts. Moderately densely 

 clothed with short, depressed, whitish pubescence. 



Head gently convex ; with crowded and small but mostly 

 sharply-defined punctures ; mandibles simple. Eyes widely and 

 shallowly notched. Antennae rather long and thin, eleventh 

 joint the length of tenth and obscurely semidouble. Pro- 

 thorax slightly longer than greatest width, sides rather 

 strongly dilated from near base to near apex, and then gently 



