affecting Carroti> and Parsnips. 
189 
These beautiful llies belong to the Ordkr Hymknoptera, 
the Family Ciialcididte, the Gknus Callimomu; and the 
Species immediately connected with this subject was named 
by me 
10. C. Dauci, from its being bred from the carrot.* The 
male is of a brilliant metallic green ; the horns are 13-jointed and 
black, basal joint green ; the head is short and broad, thickly 
punctured ; the compound eyes are lateral an<l orbicular, the 
simple ones form a broad triangle on the crown ; the thorax is 
oval and punctured, the sections deeply marked : the abdomen is 
smaller than the thorax, somewhat spindle-shaped, very glossy, 
scooped out at the base, the apex with a short horny process : the 
4 wings are as transparent as glass, but iridescent; the superior 
have an ochreous nervure along the costa, which terminates 
beyond the middle in a little dot : the legs are straw-colour, the 
coxae and thighs are metallic green, the apex of the latter 
ochreous ; hinder shanks pitchy, excepting the base and apex ; 
feet 5-jointed, tips black, terminated by minute claws and 
cushions: length 1^ line, expanse 2i (fig. 20). Female larger; 
IJ line long, ovipositor | line long (fig. 21, magnified) : bright- 
green like the male : the horns are also black, but the long 
basal joint is straw-colour with a dark streak on the back : the 
abdomen is not concave at the base, and it is terminated by a long 
ovipositor composed of an oviduct enclosed between 2 black hairy 
sheaths : the legs are coloured like those of the male. 
CalUmome Daiici is sometimes considered the same as Olivier's 
Cynips auratus,\ and it is also stated to be the Torymns mus- 
carum of Nees.J but my specimens do not agree with their 
descriptions, and the economy of them is totally different. 
it would scarcely be possible to eradicate these insects without 
destroying the seed-crop, and as it is almost certain that they are 
the destined check upon some Cynips or Cccidomyia which first 
creates the galls, by burning the infected umbels our friends would 
fall victims to such a measure, as well as the actual offenders. 
TepIIRITIS SOLSTITIALIS. 
This beautiful fly is abundant on thistle blossoms during the 
summer, and being named by Fabricius T. Dauci,^ which implies 
that he had reasons for believing that it was connected with the 
carrot-crops, I cannot pass it by unnoticed, although I am unable 
to illustrate its history further than to state that T. cuspidata of 
* Curtis's ' Brit. Ent.,' fol. 552. ' Guide,' Genus G46. 
t ' Eneyclopedie Mctliodique,' vol. v. p. 781, 
:i; * Hymen. Ichn. Affin.,' vol. ii. p. 58. 
§ ' Eiitom. Syst.,' vol. iv. p. 358.- 
