162 Proceedings of the Royal Society of Victoria. 



nitidis), interstitiis seriatim concinne granulatis, spina humerali 

 bene detinita ; tarsofuin articulo basali valde elongate. 



Long. U 1. Lat. 1 1. 



Differs from the other Australian Ataenii (known to me) with 

 granulate elytra by, inter alia, its pronotum having a distinct 

 longitudinal sulcus, and puncturation which on the disc is very 

 far from being confluent (the interspaces of the punctures being 

 subnitid and some of them being conspicuously larger in area 

 than the adjacent punctures). This species seems to differ from 

 all those described by Macleay as Ammoecii (some of which 

 are, no doubt, Ataenii), inasmuch as they are all diagnosed as 

 of smaller size and none of them are recorded to have granulated 

 elytra. 



N.W. Australia ; sent by Mr. Froggatt. 



A. KOEBELEI, sp. nOV. 



Oblongus ; sat opacus ; niger, palpis rufis ; capite confertim 

 subtilius ruguloso, antice late leviter emarginato, sutura clypeali 

 fere nulla ; prothorace transversim subquadrato, supra confertim 

 (a basi antrorsum gradatim magis subtiliter) ruguloso, angulis 

 omnibus obtusis, basi vix perspicue marginata ; scutello sat elon- 

 gato, triangulari ; elytris 10-costatis (costis vix subnitidis), inter- 

 stitiis seriebus granulorum binis instructis (seriei internae granu- 

 lis minutis), spina humerali bene definita ; tarsorum posticorum 

 articulo basali valde elongato. 



Long. 2| 1. Lat. 1 1. (vix). 



The intervals between the raised lines on the elytra bear a 

 series of conspicuous granules, and also a row of smaller and 

 much less conspicuous granules. In this respect A. granulator, 

 Har. (from New Guinea) resembles it, but inter alia that species 

 is clothed with fulvous setae. 



Queensland (taken by Mr. Koebele at Cairns). 



A. (Ammoecius) obscurus, Macl. 



Harold (Ann. Mus. Gen., 1877, p. 58) assigns this species to 

 Ataenius, and mentions it as having granulate elytra. Unfor- 

 tunately he does not say on what ground he bases his identifica- 

 tion, and it does not seem likely that he examined the type, 

 which is presumably in the Australian Museum at Sydney. 



