98 ADEPHAGA. [Tachys. 



are almost obsolete, the eighth deep behind and obsolete in front, third 

 interstice with two pores. L. 2-2 1 mm. 



Taken first by Mr. Bold beneath stones on the sea shore )ic:ir South Shields in the 

 spring of 1863, and afterwards in some numbers by Mr. Crotch in the same locality, 

 but it bus not occurred, apparently, for many years ; it is a rare species on the 

 Continent. 



T. parvulus, DpJ. Upper surface dark brown or reddish brown 

 M'ith a slight metallic lustre; antenn;e rather short, brownish or brownish 

 yellow, with the base yellow ; forehead with two Hne loni^ntudinal lines 

 on each side ; prothorax su1:)quadrate, slightly narrowed behind, strongly 

 depressed at base, with posterior angles acute ; elytra rather convex, 

 with the sutural and three following stride strong, finely but distinctly 

 punctured, reaching almost to base, evanescent before apex, except the 

 first, which is recurved ; a fifth stria is obscurely indicated, and the 

 eighth is deep from base to apex ; legs entirely yellow. L. 1^ m. 



A single specimen was taken in September, 1884, by Mr. J. H. 

 Smedley at roots of Par/ia-bWt ^^a/Hs^ris from Wallasey Sand-hills, Liver- 

 pool (Ent. Mo. Mag. xxii. 43) ; no other, however, has yet been found 

 in the locality. 



This species is in the same section as T. quadn'sir/nafus, from which it 

 may be at once separated by its unicolorous elytra ; from T. hidriafus it 

 may be distinguished by the acute posterior angles of the thorax as well 

 as hy the different sculpture of the elytra. 



T. quadrisig-natus, Diift. (s&xstriatus, yhw, Duft.). Pitchy black, 

 lighter or darker, with two round reddish yellow spots on each elytron ; 

 antennae brownish, lighter at base ; forehead with two longitudinal 

 grooves on each side between eyes ; thorax sub(|uadrate broader than 

 lone, slightly narrowed behind, posterior angles acute, base depressed ; 

 elytra with three deeply impressed and punctured striae, rather faint at 

 base, and still more so at apex, except the first which is recurved, fourth 

 stria not so deep as the first three, the other striae more or less obsolete, 

 except the eighth which is distinct at base and apex ; legs testaceous, 

 tibiae sometimes pitchy in middle. L. 2 mm. 



This species is variable as to size and colour, being sometimes brownish 

 or almost testaceous : a single specimen of one of these light forms was 

 taken at South Shields by Mr. Bold, and is the only British example 

 known. As Mr. Bold makes frequent allusions in his catalogue of the 

 insects of Northumberland and Durham to the ballast heaps at South 

 Shields, it is possible that this specimen was introduced as has above 

 been suggested : it is also possible that T. Fucki may have also been 

 imported in the same way. 



T. scutellaris, Germ. Head and thorax pitchy brown, elytra 

 livid testaceous with a triangular patch about scutellum fuscous, and the 

 apex and more or less of the surface (sometimes the whole surface) 

 clouded; antennae brownish with the base testaceous (sometimes almost 



