Mr. J. S. Baly on the Phytophaga. 199 



4) flexuosa, secunda pone medium (maculis 5) arcuata, positis), nigris ; 

 subtus obscurior, abdominis segmentorum macula utrinque parapleu- 

 risque piceis. 



Mas. Antennis valde flabellatis. 



Fam. Antennis modice flabellatis. 

 Long. 5-6| lin. 

 Hob. Port Natal. 



Thorax with its apical margin bisinuate, the side border rounded 

 behind, narrowed and sinuate in front ; the anterior angles produced, 

 subacute ; upper surface with five large black spots placed (2-3) on 

 the disk, and in addition two or three others, smaller and punctiform 

 (sometimes obsolete), on either side, close to the lateral and basal mar- 

 gins ; the fii*st of the macuheform fascia? on the elytra is placed nearer 

 the base than in I). pectiiiieurnis, the second (situated immediately 

 behind the middle) is regularly curved, instead of being flexuose as in 

 the above-named insect, and the subapical and submarginal patch 

 occupies the place of three much smaller spots, which form, in the old 

 species, a transverse subapical band : legs entirely black, with the ex- 

 ception of a narrow space on the upper and lower edges of the hinder 

 femora. 



In addition to the different arrangement of the black markings 

 on the elytra, as indicated above, this species may be separated from 

 D. peetinicornis (Oliv.) by the form of its thorax ; mD. pectinicomis 

 the anterior margin is nearly truncate, the sides are more regularly 

 rounded, and the anterior angles, although distinct, are not produced. 



DiampMctia Bohemani belongs to the 1st section. 



Diamphidia ornata. (Plate XII. fig. 3.) 



I). oblonga, crassa, valde convexa, fulva, subnitida ; capitis vertice vittaque 

 inter oculos, antennis, scutello, parapleuris, abdominis segmenti penul- 

 timi macula utrinque pedibusque (femoribus basi exceptis) nigris ; 

 thorace transverso, utrinque foveolato, fascia lata pone medium, antice 

 trilobata, maculisque rotundatis quatuor ante medium transversim 

 positis, his singulis ramulo brevi ad fasciam connexis, nigris ; elytris 

 pallide fusco-violaceis, utrisque limbo laterali maculis duabus, prima 

 basi prope scutellum, secunda infra humerum, fasciisque submaculari- 

 formibus duabus, una prope medium, altera ante apicem positis, flavis, 

 nigro-marginatis. — Long. 5 lin. 



Hab. Lake N'Gauii. 



Oblong, robust, slightly broader behind; antenna; serrate; eyes black; 

 thorax twice broader than long, sides slightly rounded, posterior 

 angles broadly rounded, surface irregularly punctured, the puncturing 

 scattered on the disk, base impressed with a deep fovea, sides with a 

 broad shallow excavation, in the middle of which is a deeper impres- 

 sion ; scutellum trigonate, its apex truncate, surface smooth, impunc- 



t2 



