Australian and Tasmanian Malacodermidae. 89 



sculpture of the elytra is much as in many of the larger 

 females of rhijndius. 



Metriorrhynchus opacus, n. sp. 



$ Deep black. 



Rostrum very short. Antennae rather long, 3rcl joint once and 

 one half as long as wide and distinctly longer than 4th, the succeed- 

 ing ones feebly produced internally.* Prothorax lightly transverse, 

 apex slightly produced, hind angles produced ; disc 7-areolate. 

 Elytra long and thin, quadricostate, the interstices with double rows 

 of rather smalh regular punctures. 



Length 10| mm. 



Ifah. Queensland : Cairns (K Allen), 



In general appearance close to atratus but narrower, the 

 elytra entirely opaque and with much smaller and more 

 regular punctures, the antennal joints are differently 

 formed, the prothorax is much less constricted at its 

 middle and its medio-apical areolets are larger. From 

 the description f of fwmostts it differs in its larger size, 

 deep black colour and produced hind angles of prothorax. 



The elytra are entirely without gloss and their punctures 

 are small, regular, and rounded, except towards the base 

 where they become angular and transverse ; the first costa 

 is stronger than the second towards the base, but weaker 

 towards the apex. 



Metriorrhynchus tibialis, n. sp. {Figs. 110, 111.) 



$. Black; prothorax (a large subcircular basal spot infuscate) 

 and basal two-thirds of elytra reddish-testaceous. 



Rostrum very short. Antennae rather short and wide, strongly 

 serrated. Prothorax very feebly transverse, apex produced, sides 

 rather strongly constricted in middle ; disc 7-areolate, all the costae 

 sharply defined. Elytra long and thin ; quadricostate, the inter- 

 stices with double rows of rather small punctures, becoming very 

 irregular in places. Penultimate segment of abdomen narrowly 

 excised to base. Hind tibiae with a strong, blunt, sublaminate, 

 inner projection just beyond the middle. 



Length 65 mm. 



Hah. Queensland : Cairns (JS. Allen). 



* In the type three joints of the antennae are missing. 

 t The specimen described was received after I had examined the 

 type oi fumosus. 



