id MADEIRAN COLEOPTERA, 
Sectio XI. ATRACHELIA. 
Fam. 46. ANISOTOMIDZ. 
Genus 176. STAGONOMORPHA. 
Wollaston, Ins, Mad. 484. tab. x. f. 8 (1854). 
430. Stagonomorpha spherula. 
Stagonomorpha spheerula et unicolor, Woll., Ins. Mad. 484, 485. tab. x. 
f. 8 (1854). 
Inhabits Madeira proper, occurring in the damp sylvan districts 
towards the north of the island: exceedingly rare. It varies in the 
colour of its prothorax, from rufo-testaceous into black; and it was 
to an unusually dark specimen that, in the Insecta Maderensia, I gave 
the name of wnicolor. 
Genus 177. STEREUS, nov. gen. (Vide Tab., fig. 1.) 
Corpus parvum, suborbiculato-ovatum, valde convexum, robustum, 
crassum:; capite deflexo, sed ad pectus haud applicando ; oculis 
parvis subrotundatis : prothorace amplo, postice lato ; pronoto ely- 
trorum basin scutellumque plus minus obtegenti: mesosterno 
simplici; scutello sat magno triangulari (quum caput minus deflec- 
titur e visu abscondito): alis obsoletis: abdomine e segmentis 
ventralibus sex composito. Antenne (1a) 11-articulate, breves, 
robuste, clavate, inter sed pone oculos insertee, art? 1mo leviter 
incrassato, 2do 3tio vix crassiore, 3tio ad 8vum parvis longitudine 
decrescentibus, reliquis clavam magnam abruptam ovalem 3-arti- 
culatam efficientibus (ultimo ad apicem truncato). Zabrum sub 
clypeo lato robusto reconditum. Mandibule (1 b) magne, porrectz, 
robustissimee, cornez, subtriangulares, valde exserte, und intus 
dente magno singulo submedio et altera dentibus duobus (sc. intus 
apicem et pone medium) armatis. Maaille (1c) bilobs, lobis 
brevibus pubescentibus ; interno lato. Palpi elongati: maaillares 
art® 1mo parvo, 2do 3tioque majoribus subeequalibus leviter clavatis, 
ultimo longiore subovali: dabiales (1 d) e scapis ligule connatis 
surgentes, art? Imo parvo, 2do 3tioque subsequalibus (hoc sub- 
ovali). Mentum transversum, antice integrum leviter angustatum, 
angulis anticis paulo productis. Zigula ampla, profunde biloba, 
lobis magnis divergentibus. Pedes (1e, 1 f) breves robustissimi, 
antici et postict ad basin approximati, intermedi leviter distantes : 
femoribus in sexu foemineo simplicibus, in masculo latioribus nec- 
non intus versus apicem dente magno armatis: tibi’s compressis, 
apicem versus valde dilatatis, per marginem exteriorem fortiter 
