100 
black. The wings nearly hyaline and unspotted : the se- 
condary pair have the first area of the network at the base 
yellow. The shape of the abdomen is remarkable, re- 
sembling a club with a handle, the first segment being very 
thick, the second very slender; the following ones as they 
approach the anus keep gradually dilating; the sixth and 
seventh being the widest; the two last diminishing in 
width again. The anus is terminated by four appendages ; 
the upper pair are linear, unarmed, and very hairy; the 
lower pair terminate in two sharp teeth, or a fork. The 
colour of the upper side of the abdomen is metallic, but 
more obscurely so than that of the head and trunk; its 
underside is black, with two rows of obscure pale spots. 
Linnaeus, in the first edition of his Fauna Suecica, con- 
sidered the insect here figured as distinct from his L. cenea, 
(which appears to differ from it in having yellow lines upon 
the thorax, and a black abdomen) ; but in the second 
edition of that admirable work he gave them as varieties. 
Having never met with a, we cannot venture to give a de- 
cided opinion as to its identity with /3, yet we cannot help 
suspecting that they may be distinct species. Linnaeus, 
amongst his synonyms, has referred to the same numbers 
in Ray both for this insect and L. depressa. They belong 
evidently to the latter. Our reference to that illustrious 
father of natural history in England will, we trust, be 
found perfectly correct. His description so happily pour- 
trays our insect, that we cannot resist the temptation we 
feel to insert it here. “ Thorax pilis crebris hirtus est, 
supin6 e viridi et cupreo mixto, subtus cupreo colore pilos 
translucente splendens. Abdomen longum ut in hoc ge- 
nere, tenue, Iseve, ad exortum a thorace et ad catidam in- 
tumesccns. Alas membranaceae pellucidoe ad exortum 
luteo tinctre, duplici in margine exteriore lineola nigra, una 
majore piope extremum, altera transversa minima et vix 
discernenda circa mediam partem notatse.” 
