Zygena Trifolir. 425 
In the sub-section ‘ Ailes d’un bleu foneé,” the two 
species are thus differentiated :— 
Trrrotir (no synonym of Loti or Lonicere attached). 
Trifolii, Ochs., Esper., Hiib., Borkh. 
M. Boisduval says of the caterpillar, ‘‘ on rémarque 
en outre sous le ventre un petit point noir sur chaque 
anneau,” a character I have never seen in the larva of 
the late Trifolii, but under the name T’'rifolii, so far as I 
can comprehend, M. Boisduval comprised all the forms 
or varieties of T’rifolii. * 
Lonicer® thus stands. JL. Lonicerce, Ochs., Esper, 
Hiib. 
Z. Loti, Fab. (Loti, Fab., as I have before mentioned, 
Boisduval also gives as a synonym of Achillew). 
M. Boisduval’s remarks, ‘‘ Elle est de la taille de la fili- 
penaulz avec laquelle elle a été quelques fois confondue. 
La variété  taches réunies en une seule bande irreguliére 
est assez rare;”? and of the caterpillar, “‘ On rémarque 
sur chaque anneau un point jaune placé entre les deux 
bandes ;” and also its “‘ apple-green” colour, sufficiently 
serve to identify the msect with the Lowcere of our 
present lists. 
From this time the Continental authors seem only to 
have allowed these two species, but our English authors 
did not accept this view. 
Stephens, in his illustrations, gives three 5-spotted 
species, viz. :—Meliloti, Ochs.; Vrifolii, Esper. ; and Loti, 
Fab. 
In describing Meliloti, he agrees with Boisduyal’s de- 
scription of the continental Meliloti, and his own insects 
in the British Museum do not agree with his description 
as regards the semi-transparency of the wings. Stephens’ 
specimens of Meliloti in the British Museum are small, 
not typical specimens of the late T’rifoli of the present 
paper. 
Of ca Mr. Stephens observes, “alar. expans. 11’- 
V 2”-1' 3”. Found abundantly in many parts of the 
* M. Boisduval observes, however, that Trifolii appears some time before 
Filipendula, whereas the late Trifolii appears at the same time.—T. H. B. 
