BY E. W. FERGUSON. 355 



on sides, apex with a well-defined postorbital sinuosity, median 

 lobe small, ocular lobes rather strongly produced; disc evenly 

 and closely covered with small, round setigerous granules; sides 

 obsoletely granulate. Elytra (10 x 6 mm.) evenly widened to 

 behind middle, thence somewhat abruptly rounded to apex, which 

 is rather strongly flanged; base widely and deeply arcuate, 

 humeral angles prominent, tuberculiform. Disc irregularly and 

 somewhat rugosely puncto-striate; interstices granulate or tuber- 

 culate, sutural with a single row of fine granules, larger and 

 becoming costiform at base, second with five to six small oblong 

 granules more conical posteriorly and not continued to base; 

 third with five basal granules confluent, prominent, and costiform, 

 and seven more conical tubercles, the whole extending from base 

 to apex; fourth with three small granules situated anteriorly to 

 middle; fifth with humeral tubercle and nine smaller ones, the 

 posterior conical; sixth with six small obtuse granules; sides 

 with granules obsolete. Intermediate ventral segments rather 

 short; fifth rather deeply excavate, with a well defined boat- 

 shaped fossa near apex, extending anteriorly, and with a tubercle 

 at the end of each lateral horn, and another on the inner side, 

 the two inner tubercles connected by a U-shaped edge. Anterior 

 femora ridged beneath. Dimensions : ,^.15x6 mm. 



£. Very similar in appearance to the male, but rather more 

 produced posteriorly; fifth ventral segment not excavate, but 

 with a short obtuse carina in centre, its anterior end surrounded 

 by a horseshoe-shaped depression or sulcus. 



The above description of the male is drawn from a specimen 

 sent for examination by the Brussels Museum authorities, and 

 apparently the specimen Boisduval had so named, perhaps from 

 comparison with the type. 



The species is a very variable one in regard to size, and the 

 number and position of the elytral tubercles. In some specimens 

 the granules at the base of the third interstice are conjoined, in 

 others they are more or less distinct. Lea has given the synonymy 

 of Macleay's species, and, from personal examination of the types, 

 I can find no valid reason for maintaining them as good species. 

 Macleay seems to have relied on differences in the number of the 



