, 1886. J 265 



who returned it as probably Agonum archangelicum, which J. Sahlberg described in 

 1879 : he also was good enough to copy the description for me from L'Abeille, xix, 

 p. 433 : as, however, I did not feel certain of the species, I communicated with 

 Professor Sahlberg, who very kindly sent me one of his three specimens of 

 A. archangelicum : on comparison with Dr. Sharp's specimens, I saw at once that 

 they did not agree, and again wrote to Prof. Sahlberg, regarding A. Sahlbergi, a 

 species that he had mentioned as near his species ; I also sent him one of Dr. Sharp's 

 specimens. This he has just returned with an authentic specimen of A. Sahlbergi, 

 and it is evident that they are identical, and that A. Sahlbergi must be henceforth 

 regarded as an European insect ; the following is the description : — 



A. Sahlbergi, Chaud. (Bull, de Mosc, 1850, iii, 117, 30).— Upper surface of a 

 unicolorous bronze-coppery colour ; under-side black, with a slight greenish metallic 

 reflection ; head moderately large, with two impressions in front of eyes ; vertex 

 smooth ; antenna rather long, entirely black ; thorax sub-quadrate, with sides not 

 strongly rounded, slightly contracted to base ; anterior angles marked ; posterior 

 angles very blunt, almost completely rounded, with central furrow distinct meeting 

 a transverse furrow in front, and a small but plain and rather deep round or oblong 

 depression a little before base ; the usual depressions near posterior angles are well 

 marked ; elytra of female considerably widened behind, and narrower towards base ; 

 of male more parallel sided, with fine striae and broad flat interstices, which are 

 extremely finely shagreened ; third interstice with three pores ; legs deep black. 

 Long., 71 — 85 mm. 



Three specimens, one male and two females, taken by Mr. Henderson on the 

 banks of the Clyde, below Glasgow, Scotland, about 20 years ago ; Dr. Sharp believes 

 it was also taken by Mr. Bishop at the same locality ; it has hitherto occurred in 

 Eastern Siberia, and has not before been found in Europe. 



From A. parumpunctatus this species differs in the following points : the thorax 

 is narrower and longer in proportion, with the sides less rounded and more evidently, 

 though very gradually, narrowed towards base ; the upper-side is of a unicolorous 

 coppery colour, and the antennse and legs are entirely black, whereas in A. parum- 

 punctatus the thorax is almost invariably more or less greenish-metallic, and the 

 tibiffi and first joint of antennae are pale ; in the female the elytra are more widened 

 behind than in the corresponding sex of A. parumpunctatus ; the central furrow of 

 thorax in the latter species is nearly always clear and uninterrupted to base, but in 

 A. Sahlbergi and A. gracilipes it meets a depression before base. 



A. Sahlbergi may at once be distinguished from A. gracilipes, which it much 

 resembles, by having only three pores on the third insterstice of the elytra, whereas 

 the latter species has five or six ; the thorax is rather narrower, and the posterior 

 angles much less pronounced ; the deep black legs and antennae will also distinguish 

 it. In A. gracilipes the tibiae, although darker than in A. parumpunctatus, are 

 distinctly pitchy and not deep black, and the first joint of the antennae is reddish 

 beneath ; the colour of A. gracilipes is also redder and less coppery, and the sides 

 of the elytra are much more parallel in the female, and not or scarcely dilated behind. 

 Anchomenus archangelicus {Agonum archangelicum) very much resembles A. 

 Sahlbergi, but has the thorax rather shorter and broader, with the sides more 

 rounded in front and more contracted behind ; it is, however, easily distinguished 



