190 Mr. H. ^y. Bates on the 



gently rounded and gradually narrowed posteriorly, witli 

 the anterior angles much advanced beyond the anterior 

 margin. 



Lake Nyassa; apparently abundant. Sent home in 

 large numbers by Mr. Thelwall. 



Anthia alternata. 



A. Fornasinii (Bert.) affinis, at differt elytrorum inter- 

 stitiis alternatim griseo-pubescentibus. Niger, capite 

 thoraceque grosse sparsim punctatis, hoc (ut in A. Forna- 

 sinii) antice fortiter subangulatim dilatato, postice sinuatim 

 fortiter angustato et declivi; elytris versus basin angustatis, 

 humeris nullis, versus medium valde rotundato-dilatatis : 

 interstitiis alternatim griseo-pubescentibus. 



Long. 21 lin. ^, 5 . 



Von Plarold has recently described an allied species, 

 A. midehrandti, from Zanzibar, as having the alternate 

 interstices of the elytra higher and broader ; but in this 

 all the interstices are smooth, with the exception of the 

 usual lateral punptures near the striee. In A. alternata 

 the interstices 1 (sutural), 3, 5, 7, are elevated, widened 

 and glabrous, whilst the alternate ones and the lateral 

 margin are depressed, narrow and densely covered with 

 yellow-grey hairs arising from punctures. 



Lake Nyassa (or K. Shire?). Brought by Mr. E. D. 

 Young from his Expedition of 1867. It appears not to 

 have been met with by recent collectors on Lake Nyassa. 



Ploccederus hamifer. 



Oblongus, latus, robustus, nigro-fuscus, palpis, pedibus 

 et antennis piceo-rufis ; his {$) corpore plusquam duplo 

 longioribus, articulo 11™° longissimo, 3'" extus valde 

 4 — 6 brevius spinosis, 1"^° grosse transversim rugato ; 

 thorace transverso, transversim irregulariter plicato, spina 

 laterali valida, hamata, tuberculo anteriori conico ; elytris 

 subtiliter coriaceis utrinque leviter bicostatis, apice bi- 

 spinosis ; corpore subtus fulvo-pubescenti ; femoribus grosse 

 transversim rugatis. 



Long. 1 in. 8 lin. 



A large robust species, brownish-black in colour, opaqiie 

 except on the elytra, Avhich are fointly shining. The 

 thoracic spines are long, acute and recurved backwards, 

 and the femora arc crossed from base to apex with flexuous 

 ridges. The antennae are more than twice the length of 



