Plate XYI. 



Fig. 135. DITOMA CRENATA, Hbst. [F. Synchitidas. G. Ditoma, Illiger.'] (Bitoma 

 creuata, Curtis?) 



Oblong, parallel, depressed, black, opaque, elytra each with two large red spots. Head trans- 

 Terse, narrower than the thorax, rngulosely punctate, nearly smooth in front, with a large, deep, 

 oblique impression on each side between the antenn«e ; antenna; red brown, apical joint paler. 

 Thorax transverse, sub-quadrate, slightly narrowed behind, faintly rounded at the sides anteriorly, 

 base sinuate, posterior angles obtuse; rather thickly rugnlose-punctate ; sides narrowly margined, 

 crenulate ; disc depressed, with two longitudinal ridges on each side, the inner one curved, the 

 outer one nearly straight. Elytra with the sides nearly parallel, punctate-striate, the punctures 

 quadrate, suture and alternate interstices raised, each with a large red patch at the base and another 

 at the apex. Legs red, thighs black. Specimens frequently occur of a uniform ferruginous colour 

 throughout, and are probably immature. Length, I5-IJ lines. 



Not uncommon. Beneath bark. 



Fig. 136. RHIZOPHAGUS BIPUSTULATUS, Fab., Curtis. [F. Nitidulidse. G. Rhizo- 

 pliagus, Herbst.~\ 



Elongate, sub-depressed, black, shining, legs, antennas, and a more or less conspicuous spot 

 near the apex of each elytron red. Head a little narrower than the thorax, rather thickly and 

 finely punctate, with a shallow oblique impression on each side between the antennfe. Thorax 

 scarcely longer than broad, slightly narrowed behind, the sides nearly straight, somewhat sparsely 

 punctate, the punctures oblong. Elytra punctate-striate ; interstices flat, smooth, that next the 

 suture with a row of exceedingly minute punctures. Length, l^-lg lines. 



Common. Under bark, and in boleti. 



Fig. 137. HYPOPHLCEUS BICOLOR, Olivier, Curtis. [F. Ulomidse. G. Hypophloeus, 



F(,b.] 



Elongate, sub-cylindrical, shining, ferruginous, eyes and posterior two-thirds of elytra black. 

 Head small, narrower than the thorax, very finely and rather thickly punctate, with a transverse 

 arcuate impressed line in front of the eyes. Thorax oblong, convex, narrowed in front and behind, 

 the sides moderately rounded and narrowly margined, posterior angles obtuse, finely and rather 

 thickly punctate. Elytra with the sides nearly parallel, nearly as finely and not quite so thickly 

 punctate as the thorax. Length, l|-2 lines. 



Common in the south. Beneath the bark of felled elms. 



Fig. 138. TENEBRIO OBSCURUS, Fab., Curtis. \_F. Tenebriouidse. G. Tenebrio, L.] 



Elongate, sub-depressed, black, opaque. Head narrower than the thorax, coarsely, thickly, 



and conflucntly punctate, with a faint, transverse, arcuate, impressed line in front of the eyes. 



Thorax as broad as long, slightly narrowed in front, sides rounded ; base sinuate, with a short 



longitudinal linear impression on each side ; coarsely, thickly, and conflucntly punctate. Elytra 



with the sidesnearly parallel, striate, the strife obscurely and remotely punctate; interstices rather 



convex, thickly rngulosely punctate. Legs pitchy. Length, 6-8 lines. 



Common. In bake-houses and stables near London. 



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