A Bevision of the Genus Synthocus. 99 



appearance, more rounded elytra and more convex declivity, the 

 convergence of the two dorsal rows of tubercles, the curved tibial 

 spine, and the absence of the thoracic furrow and lateral carina. 

 Described from a single example. 



9. Synthocus fratee, sp. nov. 

 Plate VI., fig. 9. 



Long. 8 ; lat. 4f mm. 



Colour earthy-brown, with a transverse pale patch at the apex of 

 the disk ; setae scarcely perceptible. 



Prothorax as long as broad, sides rounded, evidently constricted 

 near apex and narrowed behind, the base bisinuate ; upper surface 

 slightly convex, rugose, without a central furrow but with a shallow 

 impression on each side of the disk and a transverse impression near 

 apex; sides obscurely punctured. Elytra subquadrate, the basal 

 margin sinuate and a little broader than the base of the prothorax, 

 the external angles not projecting, shoulders prominent and acutely 

 tuberculate, the sides scarcely narrowed posteriorly, the declivity 

 very abrupt and subangulated dorsally ; upper surface depressed as 

 far as the 4th interval, then sloping gently downwards to the 6th, 

 with somewhat irregular rows of large punctures, the intervals on 

 the disk rather rugose ; interval 4 with a row of small tubercles 

 almost parallel with the suture and ending at the declivity, 6 with a 

 similar row continued to the apex, 3 and 5 each with a short oblique 

 basal costa, and 2 with a couple of tubercles at the summit of the 

 declivity and a few much smaller ones on the declivity. Legs with 

 dense brown scaling and conspicuous white setae ; tibiae not scabrous, 

 the inner apical angle with a short spur, the outer angle scarcely 

 produced ; tarsi rather short and stout. 



Great Namaqualand {De Vylder). 



Type in the Stockholm Museum. 



Very similar in general facies to parvus, Per., from which it differs 

 not only in its contiguous intermediate coxae but also in its more 

 elongate elytra, more prominent shoulders and smooth tibiae. I have 

 seen only the type specimen. 



10. Synthocus parvus. Per. 

 S. parvus, Per., Trans. S. Afr. Phil. Soc, 1888, p. 164. 



Long. 5-7 ; lat. 3-4 mm. 



Colour dark brown, with a pale transverse band before the 

 declivity. 

 Prothorax as long as broad, sides slightly rounded, broadest 



