264 Rev. H. Clark’s Notes on the 
medial; in size also this fascia is narrower and not quite so 
irregularly wavy in form. 
From the Amazon district ; collected by Mr. Bates. 
In the Collections of Mr. Baly and the Rev. H. Clark. 
6. S.frenata, Guér. (Cuv. Réegne An. Ins. p. 304). 
Oblongo-ovalis, subparailela, costata, flava, lineis duabus a 
capite ad elytrorum medium fasciaque lata media nigris ; 
caput omnino nigrum; ¢horawv transversus, lateribus sinuato- 
rotundatis, apice subemarginato, basi transversa, anguli 
antici et preesertim postici rotundantur, ad medium fovea 
obsoleta vix apparet; thorax flavus est, lineis duabus sub- 
mediis et parum obliquis a capite ad basin nigris; scutellum 
sat magnum, flavum; elytra thorace latiora, subparellela, ad 
apicem rotundata (apicibus singulis apud suturam haud de- 
hiscentibus); costee duze (versus suturam) alteraeque duz 
penitus obsoletze (versus marginem) apparent; he haud 
apicem attingunt; quoad colorem elytra flava sunt, fascia 
transversd post-medid JatA Jineisque duabus inter costas 
1 et 2 nigris ; antenne, pedes corpusque subtus nigri. 
Long. corp. lin. 44—3} ; lat. lin. 23-13. 
I can trace no tendency to variation among the three specimens 
before me; the medial, or rather somewhat post-medial fascia is 
on its upper margin transverse, on its lower arcuate, being much 
broader at the suture than at the margination (both boundary 
lines being interrupted by the different costa, and irregular) ; the 
breadth of the fascia at the suture is about one-third of the whole 
length of the elytra. 
The species is found in Columbia. 
In the Collections of Mr. W. Wilson Saunders and the Rev. 
H. Clark. 
Schematiza dimidiata, Guér. (Cuv. Regne An. Ins. p. 303), 
Is described by Guérin as from Dory, New Guinea, and placed 
by him next to S. frenata. I do not recognise the description, 
but whatever the species may be, it can hardly belong to the 
genus before us, which is exclusively South American. 
7. S. flavofasciata, Guér. (Cuv. Réegne An. Ins. p. 304), 
Ovalis, subparallela, leviter costata, nigra, thoracis lateribus et 
elytrorum vitta media flavis: caput nigrum: thorax trans- 
versus, depressus, latera subrotundata apicem versus paulum 
