EXPLANATION OF PLATE XII. 



Fjg. 24.— Ophtygonius inaeqnalis (regd. no. '^). Head from above, x 2. 

 24a. Ditto Mentum, etc., X4. 



25. — Aceraius borneantis (regd. no. --^). Head from above, x 2. 

 ,, 25«. Ditto Left mandible from the side, x 4. 



,, 256. Ditto Mentum, etc., x 4. 



,, 26. — Aceraius wallacei (regd. no. ~). Head from above, x 2. 



26a. Ditto Left mandible from the side, X 4. 



,, 266. Ditto Mentum, etc., x 4. 



,, 27.— Aceraius laevicollis (regd. no. ?|5). Head from above, x 2. 

 ,, 27^. Ditto Left mandible from the side, x 4. 



,, 28. — Aceraius grandis subsp. hirsuius, a specimen of moderate size (regd. 

 no. "^). Head from above, x 2. 

 28a. A large specimen of the same species and subspecies (regd. no. ^^'). 

 Head from above, x 2. 

 ,, 28b. Left mandible of a similar specimen to the last from above, x 4. 

 , , 29. — Left mandible of another specimen of the same sub-species (regd. no. ^^) 



from above, x 4. 

 ,, 30.— Aceraius grandis var. rectidens (from a specimen in the Sarawak Museum 



collection). Head from above, x 2. 

 ,, 31. — Aceraius kuwerti (from a specimen in Mr. Audrewes' collection). Head 



from above, x 2. 

 ,, 32. — Aceraius illegalis (regd. no. ^'-f). Head from above, x 2. 

 „ 32c7. Ditto Mentum, etc., x 4. 



,, 33- — Aceraius moschleri (regd. no. •^). Head from above, x 2. 

 ,, 34- — Aceraius alutaceosternus (regd. no. ^'). Head from above, x 2. 

 ,, 34rt. Ditto Mentum, etc., x 4. 



,, 35- — .4 ceyfl/»s />^7^;■/ey (from a specimen in Mr. Andrewes' collection). Head 



from above, x 2. 

 ,, 36.— ^cemm,9 /n'wrt/aymsts (type). Head from above, x 2. 

 ,, 36rt. Ditto Anterior part of head from the right side, x 4. 



37. — Aceraius assamensis {xegA. no. ~). Head from above. 

 ,, 37^^ Ditto Anterior part of head from the right side, X 4. 



38. — Aceraius iavoyanus' (regd. no. *•?). Head from above, x 2. 

 ,, 38fl. Ditto Anterior part of head from the right side, x 4. 



,, 3g.— Aceraius helferi (regd. no. -^i"). Head from above, x 2 



y)a. Ditto Anterior part of head from the right side, X 4. 



A. helferi, .see above, p. 292. 



