NEW BRITISH SPECIES, ETC., IN 1868. 37 



mopolitan insect, the chief wonder about which appears to 

 be that it has not been found in England before, since it 

 occurs all over Europe, and in Syria, North America, the 

 West Indies, Madep'a, &c., and has domestic habits, like 

 A. pelliOf from which its smaller size, narrower shape, and 

 entirely unspotted surface, and the very long apical joint of 

 its antennae in the male, at once distinguish it. 



36. Sph^ridium MARGINATUM, Fab.; Gyll.; Er.; Thorns., 



Skand. Col., ix, p. 123; G. R. Crotch, 1. c, 67. 



Mr. Crotch records the present determination by Thomson 

 of this insect as distinct from >S^. bipustulatum, Fab., rightly 

 as he thinks ; and adds that both forms occur here. 



The insect (of which -a variety occurs with the thorax 

 not margined with testaceous) was formerly considered by 

 Thomson as a var. of S. hipustulaturrif from which it differs 

 in the absence of a well-defined yellow apical spot to its 

 elytra, and of the rudimentary dorsal striae of punctures 

 which appear on the disc of that species. 



37. Cercyon lugubre, Payk.; Gyll.; Thomson, Skand. 



Col., ix, p. 125; G. R. Crotch, 1. c, p. 67. 



Mr. Crotch notes the division of this species into two, and 

 states that both occur in England, the true lugubre being 

 much the commoner. 



Thomson remarks that both PaykuU and Gyllenhal have 

 apparently included the insect subsequently described as C. 

 granarium in their lugubre; but that as Erichson first 

 clearly described both, we ought to follow his nomenclature. 



C. lugubre, Gyll., he characterizes as allied to C. mi- 

 nutum, Fab., through its sub-opaque elytra, but to be dis- 



