230 Memoirs of the Indian Museum. [Voiv. Ill, 



Aceraitts illegalis, Kuwert, s. str. 

 PI. xii^ figs. 32-32«. 

 Regd. No. ^ ~ Johore J.Meldrum; ? (purchased). 



I have also examined other specimens, including one from Kuching and one from 

 between Ulu Madahit and I^imbang which are preserved in the Sarawak Musemn. 



Description. — L^ength 39-43 , mm. Labrum as in A. wallacei. lyamellae of 

 antennae somewhat short and thick, first one pilose only round margin of anterior 

 face. Mandibles as in ^ . wallacei. Mentum also as in that species but more closely 

 punctured in middle. Anterior angles of head prominent, that of left side very 

 slightly more so than that of right; truncation of left outer tubercle straight or only 

 slightly concave, vertical to the two parallel sides of the process, the outer side often 

 with a thickening which is more or less rectangular; right outer tubercle rather long, 

 with acute undivided apex bent slightly outwards. Prothorax as in ^. wallacei. 

 Scutellum with the punctured area of its anterior margin apt to be carried unusually 

 far back along the middle line; mesothoracic episterna and sternum as in A. wallacei, 

 except for presence of indistinct hair-bearing punctures in posterior angles of meso- 

 thoracic episterna. Greater part of posterior intermediate areas of metasternum 

 smooth and unpunctured, but with a few both of the coarse inner and fine posterior 

 punctures always more or less distinctly present. Posterior parts of hind coxae dull, 

 abdominal sterna polished, both smooth or very nearly so. Elytra somewhat sparsely 

 covered with longer or shorter hair, seventh rib often, ninth almost always, rather 

 sparsely punctured. 



Aceraius laevicollis (Illiger). 

 PI. xii, 



Regd. No. 



9268-70 -mi 



1 19 



&t;{5-6 3046-50 



iigs. 27-27«. 





Johore 



J. Wood-Mason, etc. 



Sinkep Island 



Moti Ram. 



Kuching, Sarawak, 



1 



Borneo 



> Sarawak Museum. 



Limbong, Borneo 



/ 



The Sarawak Museum collection includes specimens from Busa and Serai; the 

 Berlin collections include specimens from Perak, Deli, Solok, Peinan, Nias, Lingga, 

 Billiton, Java, Bandjermasin, I^uzon and S. Palawan; and the Hamburg collection 

 specimens from Deli, Serdang, Somgei Lalah, Tandjong and Banguey Island. 



Description. — Length 29-34 mm. lyamella of fifth joint of antennae long and pilose, 

 the fourth joint sometimes furnished with a short lamella devoid of pilosity. Labrum 

 as in preceding species. Mandibles also as in that species except that the upper 

 margin of the left mandible behind the upper tooth is more or less convex and 

 usually distinctly turned over inwards. Mentum more or less punctured, its anterior 

 margin often sunk on each side of a median prominence which may be more or less 

 distinctly grooved in front in the middle line. Head above remarkably variable • 



