452 Mr. F. P. Pascoe on some neiu or little-hnoiun 



its edge, and creating a strongly marked groove on its inner side ; 

 scutelliim short and very transverse ; elytra impunctate, shortly ovate, 

 broader than the prothorax, to which they are closely applied, the 

 shoulders rounded ; epipleurse broad at the base, gradually narrowing to 

 the apex ; body beneath and legs smooth and somewhat glossy ; an- 

 tennae as long as the prothorax, the 8th, 9th and 10th joints transverse, 

 11th rounded. Length 6 lines. 



Idisia [Opatrinse?]. 

 Caput porrectum, subelongatum, ad oculos retractum. Labium valde 

 transversum. Oculi rotundati, prothoraci approximate Palpi maxil- 

 lares cylindrici. Antemics robustae, ciliatse, clavatse, ll-articulatse, 

 scapo crasso, art. 3o longiore, caeteris brevibus, clava triarticulata, art. 

 ult. minore. Prothorax transversus, lateribus rotundatus, ciliato-mar- 

 ginatus, apice truncatus, basi bisinuatus. Scutellum in visum. Elytra 

 ovata, costata ; epipleurse postice augustiores. Pedes mediocres ; femora 

 incrassata, trochanteribus intermediis nullis ; tihice anticae trigonatae, 

 caeteris linearibus calcaratis ; tarsi lineares, antici breves, art. basali bre- 

 vissimo, intermedii et posteriores elongati. Coxm anticae globosae, di- 

 stantes. Epistema metathoracica linearia, epimeris propriis obsoletis. 

 Prosternum elevatum, latum. Mesosternum declive. Metaste?'mim breve. 

 Processus interfemoralis mediocris, antice rotundatus. Corpus gracile, 

 squamulosum. 



Having only a single specimen of this insect, for which, and an 

 extensive collection of Coleoptera made on the coast of Chinese 

 Tartary, I am indebted to Arthur Adams, Esq., E-.N"., I have not 

 attempted to extract its oral organs ; but, judging solely from the 

 characters that remain, I do not see that it can well be referred to 

 any of the numerous groups described by M. Lacordaire. The habit 

 in some respects suggests Stenosince ; but the clavate antennae, ciliated 

 tarsi, spurred tibiae, and retracted head are at variance with that sub- 

 family. In its scaly clothing it is similar in character to LeicJienum 

 pulchelhcm, but more delicate ; and this, in conjunction with its tarsi 

 and trigonate anterior tibiae, induces me to refer it, although doubt- 

 fully, to Opatrinae. 



Idisia ornata. (PL XYIII. fig. 8.) 

 7. nigra, squamulis albis tecta ; elytris basi ochraceis, in medio fascia 



grisea irregulari ornata. 

 Hah. Mantchuria. 



Black, entirely covered by small white scales ; lip glabrous, brown ; 

 eyes with subspinous facets, placed at a little distance behind the an- 

 tennary orbits ; antennae not larger than the prothorax, reddish brown, 

 but with scattered white scale-like hairs ; prothorax with a central 

 impressed line ; elytra with five elevated lines on each, the first, 



