400 Mr. H. W. Bates's descriptions of 



9 Segmeutum 5 veutrale, apice fortiter emargiuato. 



$ Segmenta 5 et 6 apice fortiter arcuata ; hoc medio sul- 

 cato. Long. 15-18 lin. $ , ^ . 



Distinguished by the amphtude of the elytra, and the dark 

 l)rassy -green or greenish-blue colour, and the rich violet hue of 

 its velutine patches and stripes. The antenna; in both sexes are 

 nearly three-fourths the length of the body. In one $ example 

 tlie scutelhim is much shorter than iu the others, the narrow 

 apical prolongation being wanting. The single $ example has 

 the central part of all the femora red. 



Cameroons River. 



SYNAPTOLA, u. gen. 



Gen. Pkilematio affinis : differt antennis $ corpore broviori- 

 bus, thoracisque lateribus tumidis, hand acute spinosis. Femora 

 t>mnia subtus acute dentata ; 4 antica pedunculata. Scutellum 

 haud elongatum plerumqiie transA^erse rugulatum. Prosternimi 

 apice tumidum interdum tuberculatum. Mandibular elougataj 

 aut subrecta" aut apice subiter incurva^. 



■S//iia/)f()hi hreviconiis. 



Saturate viridi-cyanea, nitida ; antennis pedibusque uigris, 

 tarsis ai'genteo-pilosis : mandibular elongataa, apice incurvo ex- 

 cepto recta>, sinistra intus flexuosa nee dentata : thorace quam iu 

 Mecaspis angustiori, antice et postice sulcato-constricto, lateribus 

 tuberculo valido, conico, obtuso: dorso elevato, sparsim transverse 

 strigoso (linea dorsali abbreviata Ifevi) disco utrinque tenuiter 

 nigro-velutino : scutello apice obtuso, transversim ruguloso : 

 elytris passim subtiliter subcrebre punctatis : prosteruo apice 

 valide tuberciilato : antennis 9 dimidio corporis vix longioi-ibus, 

 articulo 3 valde elongato 4-10 serratis. Long. 13 lin. ^ . 



9 iSegmentum 5 ventrale apice emargiuatum. 



Approaches nearer to Mecasjns than the rest of its congeners, 

 in the tuberculation of the prosternum and the transverse ruga; 

 of the sciitellum. It has, hoAvever, an acute tooth on the under- 

 side of the hind femora. 



Sierra Leone. 



Synaptola armipcs. 



Violacea, antennis et pedibus uigi-is, femoribus A anticis medio 

 rulis, tarsis argentuo-pilosis : thorace antice (haud profunda ) et 



