BY THOMAS d. SLOANE. 115 



tinuous costa on each elytron extending backward from each 

 shoulder for two-thirds the length of elytra (this costa parallel 

 to the suture, but bending lightly outwards and joining the 

 middle of the folded humeral border); upper margin of the wide 

 lateral channel costate. Prosternum lightly channelled between 

 coxoe. Length '22 o, breadth 8*3 mm. 



Hab.—Q.: Townsville (R P. Dodd; Coll. Sloane). 



Its affinity is to Ph. mastersi, MacL, from which it differs by its 

 smaller size, lighter form, narrower elytra — with base decidedly 

 narrow, sculpture different (the conspicuous feature is the dis- 

 coidal costa on each elytron; between these cost?e the elytra 

 are rough, the elevations being narrow and irregular with a 

 tendency to be arranged in two irregular rows on each elytron 

 about half-way between the suture and the costse; there are 

 small tubercles amongst the elevations) — the lateral declivities 

 above the lateral channel have the sculpture more tuberculate, 

 with a row of elongate narrow elevations forming the line of a 

 broken costa rather nearer to the margin than to the discoidal 

 costa. The prosternum has the intercoxal part flat and lightly 

 channelled, not deeply excavate at the base. 



Laccoscaphus. 



LacGopternyn, MacL, Proc. Linn. Soc. N. S. Wales, 1878, ii. 

 p.214; and I.e. 1887, (2) ii. p.l22; Laccoscaphus, SI., op. cit., 

 1904, pp.706, 708. 



It appears to me that the name Laccopterum cannot stand, 

 being too near Laccoptera used by Bohemann in 1855 for a genus 

 of Cassididce. 1 have already proposed to replace it by Laccos- 

 caphus. 



The genus Laccoscaphus, as here intended, will at the present 

 time include fourteen species, which are tabulated below, the 

 names of those species which are unknown to me being printed 

 in italics; these have been worked into the table from data sug- 

 gested by the original descriptions; it is believed they will show 

 all the characters attributed to them in the table. 



