Packard.] 
INSECTS AS MIMICS. 
285 
supposed to be a stem form of all the insects, and which is a 
remarkable synthetic type, combining the characters of the 
six-footed insects and the Myriopods. 
The two families of May flies and dragon flies do not have 
any species with marked analogies to other insects. In an- 
fig. 222. 
Adult of the Ant Lion. 
other fam ; ly, however, of which the adult of the ant lion 
(Fig. 222) is an example, we have the Ascalaphus, which 
was regarded by Scopoli as a Papilio, the wings being large 
and broad, and the antennae knobbed. The neuropterous 
Mantispa (Fig. 223), in its fore 
legs adapted for seizing its prey, 
mimics the orthopterous Mantis. 
The Panorpa (Fig. 224), ihe type 
of another family of net-veined 
insects, assumes the shape of the 
crane flies (Tipula). Bittacus has 
its analogue in the fly named 
Bittacomorpha. The large lace¬ 
winged fly called Polystoechotes Mantispa. 
has some features reminding us of the ITepialus (Fig. 225). 
The Caddis flies imitate the Tineid moths so closely that 
excellent entomologists have confounded them. The species 
of Psocus mimic the Aphides so closely that they are often 
29 
Fig. 223. 
