140 



narrowed behind ; each apex with a fine sntural tooth, the 

 posterior margins with about ten coarse serrations; disc 

 vaguely striate-punctate near middle, scarcely costate, the 

 convex intervals obscurely costate only near apex, the sulci 

 between these showing some regular longitudinal series of 

 large punctures, a wide sulcus inside the margins, and the- 

 following flocculent impressions : three small basal, four at 

 margins (a circular one behind each shoulder extended for- 

 ward along the marginal sulcus, and a large arcuate sub- 

 fasciate postmedian patch on each elytron), and three linear 

 subapical patches, lateral patches with darker yellow floccu- 

 lence than the others. Presternum sulcata, the walls of 

 sulcus carinate ; mesosternum widely concave, metasternum 

 with narrow suture, the last two showing sparse punctures; 

 first segment of abdomen with convex plate, slightly hollowed 

 in the middle through the presence of series of deep elongate 

 punctures, the second segment containing even larger elongate 

 punctures, the apical segment with a feebly-raised medial 

 carina, the greater part of underside obscured by yellow 

 flocculence. Dim., 29 x 10 mm. 



Hob. — North-western Australia: Roebourne. From C. 

 French's Collection in National Museum. 



d . What I take to be a male of the above is a badly 

 abraded specimen, the yellow flocculence scarcely evident, the 

 impressions on upper-surface and the greater part of the 

 underside coppery ; the upper-surface is darker, nearly black, 

 the large subfasciate elytral impression produced backwards 

 on marginal sulcus, elytral intervals more costate behind, 

 prothorax wider and feebly arcuate on sides. Dim., 

 34 x 12 mm. 



Hab. — North-western Australia: Roebourne. From C. 

 French's Collection in National Museum. 



I believe the above to be the sexes of the same species,, 

 the m^in characters of structure and markings being the same. 

 The female specimen was selected for close description, being 

 a fresh specimen in good condition, while the male specimen 

 is obscured and abraded by age or treatment. The fresh 

 specimen shows a mixture of green and blue colour, while the 

 older specimen is blue-black, with pronounced coppery mark- 

 ings. The semiseriate arrangement of elytral punctures is 

 exceptional, at least in Australian species of the Chalcophor- 

 ites. Types in the National Museum, Melbourne. 



This is the first record of this genus from Australia, 

 though I have specimens of aurofoveata, Guer. , from Banks 

 Island, Torres Straits: saundersi, Macl., belongs to the genus 

 Cyphogastra, though described as Chrysodema. 



