7^ 



decumbent hairs ; antennae shorter than the prothorax : prothorax trans- 

 verse, repand on each side at the base with a central lobe, concave at the 

 ap?x ; anteriorly in the middle very convex ; >sides and base depressed ; 

 surface impunctured and tesselatcd with ruddy-copper hairs like those of 

 the head : scutellum at the base transverse, with the vertex terminating in 

 a long and sharp acumen : elytra with three ridges, the two inner ones l«ess 

 distinct, parallel, obtuse and abbreviated at each extremity, the external 

 one distinct, acute running from the shoulder in an undulated line nearly 

 to the apex of the elytrum ; several rows of larger punctures are discernible, 

 and several spaces thickly punctured with minute ones ; the elytra are 

 also spotted with several hairy ruddy-copper spots, and ornamented with 

 four or five undulated hairy indistinct silver bands : underneath the tint 

 of blue is very faint and the disk of the breast is bronzed ; the mesoster- 

 num is hollowed out into a deep channel. [Previously described as 

 F'Uprcstis (Brachys) m'atca ^Veber. Rather rare in Canada ; taken in the 

 Eastern, Middle and Southern States.] 



217. Trachvs acuduct.a A'iVv^T-.-- Length of body 4 lines. Taken 

 by Capt. Hall in Nova Scotia. 



[163.] Body oblong, punctured, hairy with scattered minute decum- 

 bent brisdes resembling little scales, of a bronzed and glossy copper 

 colour. Front with a slight sinus : prothorax transverse, trilobed at the 

 base ; disk longitudinally convex and naked ; sides hairy ; surface in the 

 disk covered with minute transverse undulated lines curving upwards, and 

 sides reticulated with them : scutellum transverse acuminated : elytra 

 uneven, constricted before the middle, clouded and obsoletely banded 

 towards the apex with minute whitish bristles ; tips rounded, serrulate : 

 prosternum broad, a litt! i constricted in the middle^ rounded at the apex. 



[164.] FAMILY PVTHID^. 



218. PvTHO NIGER Kirby. — Plate vii., fig. 2. — Length of body 5 34 — 

 5)^ lines. Several taken in Lat. 54°, and in the journey from New York 

 to Cumberland-house. 



[165.] Body linear, depressed, black, shining, punctured. Head with 

 a longitudinal impression on each side between the eyes \ nose smooth, 

 flat, with the intermediate space less punctured ; antennae and palpi 

 dusky-rufous : prothorax conspicuously channelled, with the usual deep 

 longitudinal impression on each side, lateral contour very convex, con- 

 stricted posteriorly : elytra furrowed with elevated smooth interstices ; 

 furrows punctured and abbreviated at each end ; base of the elytra, where 



