426 Transactions of the South African Philosophical Society. 



lateral areas moderately ampliated, finely and thickly areolate, the 

 margins sinuate, the posterior lateral angles rounded and obtusely 

 prominent, the disk depressed with a central carination not reacliing 

 anterior margin ; scutellum small, distinctly exposed ; elytra discally 

 gibbous, discoidal areas little more than half the length of elytra, 

 elongately ovate, a transverse line between them a little before their 

 middle defining the basal area which is strongly longitudinally 

 centrally carinate, sutural area narrowly ovate with a faint central 

 longitudinal carinate line, subcostal area obliquely depressed, costal 

 area narrow, thickly areolate but with the areolets a little larger than 

 those more closely arranged in the other areas ; legs of moderate 

 length, femora a little incrassated, obscurely angularly toothed 

 at apices. 



Ulmus testudineatus, sp. n. (PI. VIII., fig. 1 and la). 



Black, shining ; lateral pronotal areas, and the costal area of the 

 elytra with the centres of the areolets greyish-white ; elytra with 

 two transversely oblique spots at base, and a transverse spot crossing 

 outer margin of discoidal area and inner margin of subcostal area, 

 greyish-white ; tibiae ferruginous ; antennae ferruginous, the apical 

 joint black. 



Long. 2J mm. 



Hah. Transvaal ; Pretoria District (Coll. Dist.). 



SiNALDA, gen. nov. 



Allied to PJiatnovia by the raised transverse lines to the discoidal 

 and subcostal areas of the elytra, but differing by the non-dilated 

 lateral areas of the pronotum, which are more or less convex, not 

 spinously ampliated ; the elytra are also relatively narrower. 



I had intended, at least for the present, to consider the genus now 

 proposed as a section of Phatnoma, from which it differs practically 

 by the above characters alone. That method is now rendered 

 inadvisable by the remarks of my vigilant critic Dr. Bergroth, who 

 has stated definitely that three of my species thus treated must be 

 placed in the genus (Oriental according to present knowledge) Gony- 

 centrum {Tclcia, Fieb.). That, however, is an error which the figures 

 should have prevented, for Gonyccntrum is without the transverse 

 raised lines to the elytra, and thus the foundation of a new genus 

 becomes necessary to prevent the confusion caused by my friend's 

 proposed correction ? 



1 transpose three species from Phatnoma to Siiuilda. The other 

 species, P. hunieralc, Dist., is a typical PJiatnovia. 



