BY WILLIAM MACLEAY, F.L.S., &C. 707 



FAM. CERAMBYCIDyE. 



20. Batocera Wallacei. Thomson. 



Arch. Ent. 1 p. 447, t. 18 fig. 1. Pasc. Ent. Soc. (3), III., p. 

 267. 



Hab. — Aru ; Key ; Mataballo ; New Guinea. 



21. MONOIIAMUS VARIOLARIS. PaSC. 



Trans. Ent. Soc, ^3.) Vol. III., p. 295. 

 Hab. — Dorey ; Mysol ; New Guinea. 



22. Dihamus rarus. Thomson. 



Arch. Ent I., p. 445. Pase. Ent. Soc, (3.) Ill, p. 291. 

 Hab. — Aru ; New Guinea. 



23. Agelasta obhcura. nov. sp. 



This species must I think be undescnbed, but it is so denuded 

 by long immersion in spirits of the vai'iegated scaly clothing so 

 usual in the genus that it is difficult to speak with certainty. 



The whole insect is of a dull chocolate brown colour, the occiput 

 has a distinct median impression, that of the thorax only shows on 

 the posterior half. The elytra are strongly punctured in about 

 fifteen very irregular rows, the intervals for the most part flat, but 

 three of those in the middle of each elytron are slightly raised and 

 broader. One specimen (a female). Length, 7 lines. 



24 Pithomictus irroratus. nov. sp. 



Form rather elongate, the length being five times the width. 

 The head is deeply impressed between the antennae which are not 

 far apart. They are longer than the body and ciliated beneath ; 

 the first joint strong and cylindrical, the third slight but much 

 longer, the fourth little longer than the first. The thorax is longer 

 than broad and almost cylindrical, with a short acute spine on each 

 side behind the middle The scutellum is nearly square. The 

 elytra are a little wider than the thorax, and over three times the 

 length, and are narrowed a little towards the apex, which is truncate 



