Australian and Tasmanian Malacodermidae. 75 



Scutellum shining, apex semicircular. Elytra narrow, parallel-sided ; 

 each quadricostate, the interspaces with single rows of very large 

 transverse punctures, separated by rather strong lidges. Abdomen 

 with penultimate segment triangularly excised almost to base. 

 Length 7 mm. 



jffah. N.S. Wales: Tweed River (IF. W. Froggatt). 



The antennal rami are unusually long for Metrior- 

 rhynchus as defined by Waterhouse. In colour the species 

 greatly resembles clientulus, dichrous, togatus, etc., but may 

 be at once distinguished by the elytral punctures being in 

 single series. 



Metriorrhynchus brisbanensis, n. sp. 



^ . Black, basal two-thirds of elytra reddish-testaceous. 



Bostrwm very short (fully twice as wide as long). Antennae 

 passing middle of elytra, very strongly serrate ; 2nd joint moderately 

 distinct, 3rd distinctly longer than 4th, the outline of the produced 

 portion of each oblique (with but a slight swelling in the middle) 

 from the base, the shorter side of each of the 4th -9th joints about 

 half the length of the longer side, Prothorax feebly transverse, 

 distinctly 7-areolate, apex rounded, sides constricted in middle, basal 

 angles acute and laterally produced. Scutellum deeply impressed 

 in middle, apex semicircular. Elytra long, thin and parallel sided, 

 each quadricostate, the interspaces with double rows of more or less 

 round and regular punctures. Ahdovnen with the penultimate 

 segment equilaterally triangularly excised to its middle. 



Length 8-9 mm. 



Hob. Queensland : Brisbane {R. Illidge). 



The smaller elytral costae separating the rows of punc- 

 tures are no stronger than the transverse ridges separating 

 each puncture, and are sometimes inclined to disappear. 

 In one specimen the sutural punctures appear as a single 

 row on each side to about the middle (where they become 

 normal), being separated by oblique ridges without a 

 trace of the smaller longitudinal costae ; elsewhere they 

 are very irregular. 



From clientulus, cliens and dichrous readily distinguished 

 by the seven prothoracic areolets ; from the preceding 

 species by the double rows of elytral punctures. From 

 togatus by the elytra (of which less of the apex is dark) 

 being longer and thinner; the medio-basal prothoracic 

 areolet is also smaller, the carina connecting it with the 



