292 
HALF IIOUKS WITH INSECTS. [Packard. 
Fig. 223. 
resemble the Odynerus wasp. Other forms recall the mason 
bees, Osmia, and two green species (Syrphus obscurus and 
Sargus obscurus) recall Ceratina, the little green bee which 
tunnels the blackberry and syringa. The Euglossa, a bee 
with a remarkably long tongue, is mimicked by Pangonia, 
equally favored with a long beak. Wasps are also mimicked 
by lower Hymenoptera, as the large Chalcis fly, Leucospis 
(Fig. 228) which is so unlike others of its family. The 
Trypoxylon wasp with its club-shaped body is copied by 
the Conops, even to the peculiar hue of the front edge of the 
wings. Descending the scale of hymenopterous life we come 
to the Pompilus (Fig. 61), which is mimicked by the large 
black Mydas fly, whose antennae are unusually long and 
hymenopterous-like. Certain ants are mimicked by species 
of Clerus beetles, which are colored in the 
same manner and run rapidly on the 
branches of bushes very much like ants. 
A certain beetle is called Formicomus 
from its resemblance to Formica, the ant. 
Among butterflies, the Papilio or swal¬ 
low-tailed butterfly is very closely mim¬ 
icked, both in form and color, by the 
highly colored swallow-tailed geometrid moth, Urania, and 
there is another geometrid moth that recalls the tailed The¬ 
da. The Thyris moth is copied by the Desmia, a little 
black Pyralid moth, with large white spots on the wings. 
On the other hand there are some moths which resemble 
so closely those of families below them that to this day in 
some cases entomologists have been mistaken in regard to 
them. The Doryodes with its feathered antennae is in reality 
an owlet (Noctuid) moth, but has until recently been re¬ 
garded as a geometrid moth allied to Aspilates. So with 
Boletobia and Pachycnemia, which are also Noctuid moths 
with analogies to the geometrid moths. Among the Bombv- 
cid moths are such forms as Euphanessa and Crocota which 
4 
