248 REVISION OF THE AMYCTERIDES, ill., 



appearance oi' llie elytral tubercles. 1 believe both speciiiieiis lo 

 belong- to but one species. Mr. Lea says tliat red is pr<)l)al)ly the 

 normal colour of the tubercles; 1 believe it to be the invariabh> 

 colour in this species. Maeleay, beyond describing the insect as 

 ^'ater,'" makes no mention of the colour of the tubercles; in the 

 type, however, they are certainly reddish, though the colour lias 

 been dimmed by age, and obscured probably by innuersion in pi-e- 

 servative. ]\lacleay records the species as from Lynd Kiver, Xoith 

 Australia. jNlost of the specimens I have seen, bore the lal)cl 

 ''West Australia," without exact locality; probal)ly it has a wide 

 distribution. 



Macramycterus Boisduvali Boisd. 



Boisduval, Voy. de TAstrolabe, ii., 1835, p.393 ; Maeleay, loc. 

 cit., p.266. 



(Plate xiv., tigs.11,12.) 



(J. Narrow elongate. Black, with minute S(piames, more 

 numerous laterally (where they unite to form small patches). 



Head excavate between the ridges, these merging into head and 

 losing their distinctness opposite the middle of the eye; central 

 ridge distinctly carinate in front, broadening behind. Rostrum 

 with mternal ridges low and broad, the median sulcus rather deep. 

 Eyes not sunken, round, distinctly protuberant. Prothorax (5 x 

 (3 nnn.) transverse, evenly rounded on sides, apex subtruncate, a 

 fairly definite, transverse, subapical impression present, median 

 Hue free from granules but not depressed, rest of disc set Avitli 

 small, rounded granules, not contiguous and somewhat irregular in 

 size, being slightly transverse near centre, and distinctly smaller 

 along the sublateral areas; sides granulate. El}i;ra (12x6-5 mm. ) 

 elongate, apex rounded, base truncate; disc with obsolete punctures 

 or small fovese hardly traceable in series, tuberculate in four rows, 

 tubercles strong, conical, projecting backwards; first row with 

 three or four extending from behind middle down declivity; 

 second row with four from base to middle, the tubercles far apart, 

 and increasing in size from base ; third row of four, not extending 

 to base or apex, tubercles separate, increasing in size posteriorly; 



