218 THE GENERA AND SPECIES OF AMYCTERID^, 



species. There are vittce of white scales on the forehead and 

 the middle and sides of the thorax, and spots of the same on 

 the elytra, the rest of the body is covered with cinereous scales. 

 The whole is interspersed with light coloured setse, each springing 

 from a granule. The anal ventral segment of the male is 

 excavated behind, while in front it has two knife-like processes. 

 The female has a slight impression near the apex of the same 

 segment. 



This species was sent to me lately by Dr. Howitt of Melbourne, 

 after whom I have named it. 



3. — Talaurinus vaeiegatus, 



Oblongo-ellipticus niger confertissime cinereo-squamosus, 

 thorace granulato subobsolete albido-vittato, elytris albido- 

 maculatis rude seriatim punctatis interstitiis leviter granu- 

 latis alternis densius granulis nitidis setis fuscis instructis. 

 Mas : mandibulis cornutis, abdominis segmento anali rude 

 punctato excavato appendicibus analibus cornels distantibus. 



Long. 7 lin., lat. 3 lin. 



Hab. Victoria River, Mitchell's Expedition. 



This species is very thickly covered with cinereous scales, 

 mixed in some places with silvery white, which, on the thorax, 

 take the form of vitta3 on the back and sides, and on the elytra 

 of small spots. The rostrum is thick, square, and not deeply 

 sculptured. The mandibles of the male have a strong horn on 

 each exterior angle. The thorax is covered with small setigerous 

 tubercles or granules. The elytra are divided into series of coarse 

 punctures, separated by rows of minute shining setigerous 

 tubercles, every second row consisting only of a few distant 

 tubercles. The setce are all brown or pitchy. The male has the 

 anal segment of the abdomen coarsely punctured, and not very 

 deeply excavated, and has two distant anal appendages as in 

 Psalidura abnormis. 



4. — Talaurinus Riverine. 



Oblongo-ellipticus niger confertim cinereo-squamosus, thorace 

 vittato granulato, elytris albido-maculatis rude striato- 



