FERONIDAB. 



7 



the apices ; they are distinctly striate ; the interstices nearest the suture 

 are plane, the others convex ; on the 3rd there are 5 punctures, 2 of 

 which are subapical ; on the 7th there are 7 ; the sides are multipunctate. 



Femora robust, the intermediate obtusely subangulate below, near the 

 extremity ; the tibiae of the same pair with a posterior prolongation 

 covering half of the basal tarsal joint. Anterior tarsi with the basal 3 joints 

 cordiform, the first elongate. 



Underside shining, the head irregularly sculptured and viridescent, 

 the rest black. Terminal ventral segment tripunctate at each side of the 

 middle, at the extremity. 



The evenly curvate sides of the thorax, without the slightest projection 

 of the posterior angles, and the entire absence of punctures in the elytral 

 striae distinguish this species from T. antarcticus. 



$ . Length, 14 lines ; breadth, 5 lines. 



Ashburtou. My specimen was discovered by Mr. W. W. Smith. 



Group Anisodactylidae. 

 Gaioxenus gen. nov. 

 Body navicular, slightly convex above, much more so along the middle 

 underneath. 



Head, including the moderately prominent eyes, as wide as front of 

 thorax, with obsolete frontal impressions ; 2 setigerous punctures on the 

 forehead and 1 near each eye. Lahrum quadrate, rather elongate, its apex 

 truncate or slightly rounded. Mandibles rather short, broad at the base, 

 curvate and acute at the extremity, the right with a median tooth. Thorax 

 transversal, narrowed anteriorly, its base resting on the elytra, which are 

 as broad as the thorax at the base, but taper considerably towards the 

 extremity ; there is a single puncture on each side of the thorax, placed 

 before the middle. 



Mentum, deeply emarginate, its wings acute at the apex, with a short 

 obtuse median tooth ; it is strongly bipunctate at the base. Palfi finely 

 setose, terminal joints of the maxillary rather shorter than the 2nd, elongate, 

 fusiform, and acuminate. Antennae elongate, filiform, attaining the mter- 

 mediate femora; the basal 2 joints and half of the 3rd are glabrous, the 

 2nd, however, bears 3 or 4 slender apical setae and is about a third shorter 

 than the following elongate one ; joints 5-10 are thick, but not obconical. 



Legs moderately elongate. Tibiae straight, the front and middle pairs 

 with spiniform setae along the outside. Anterior tarsi with slender elongate 

 'setae above, and at each side of the basal 4 joints with a spiniform seta as 

 long and nearly as stout as those along the tibiae ; their basal 4 joints 

 dilated, 1st oblong, 2nd rather broader and subcordate, 3rd similar in form 

 but a little shorter, 4th about as broad as the preceding one, incurved and 

 excavate in front, medially grooved underneath, but not lobate above; 

 their soles are covered with adpressed, grey, sponge-like vestiture, which is 

 overlaid with elongate longitudinally disposed setae, so that they appear 

 to be finely ribbed. The intermediate tarsi are moderately dilated, and 

 clothed like the anterior; the joints, however, are more elongated. The 

 claws are simple. 



Prosternum deeply and broadly concave towards the posterior angles. 

 Metasternum rather "short, so that the elongate curved coxae are only 

 moderately separated from the intermediate pair. 



This should be located in the vicinity of Zahronothus and Allocinofus, 

 but is markedly distinct from both. 



