292 HALF HOUKS WITH INSECTS. [Packard. 



resemble the Odynerus wasp. Other forms recall the mason 

 bees, Osmia, and two green species {Sr/rjjhus ohscurus 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 unusuall}^ loi^g and 

 hymenopterous-like. Certain ants are mimicked by species 

 Fig 2*^3 ^^ 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- 



Leucospis. . , 1 1 1 . n 



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- 

 cla. The Thyris moth is copied by the Desmia, a little 

 black P3'ralid moth, with large white spots on the wings. 



On the otlier 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 antennoe is in reality 

 an owlet (Noctuid) moth, but has until recently been re- 

 gax'ded 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 Bomby- 

 cid moths are such forms as Euphanessa and Crocota which 



4 



