l')U I'nmon,, Cnllcj,- Jounuit of lu,lo,nalo,jy <i,ul /.nol.Hjy, fnt. 11. \„. ..', S,'/ 



Bioloi^y oftlic Noith American Crane 

 Flies (Ti()iilidaN l)i|)tera) 



II. LIOC.MA XODICOliXlS {)^\vn^iu'Vim 



'I'lic -cniis Linonui l)<.|,,ii,-s t<. the trihc ( '/iliiul rulniiiiiil. an 

 intcrcstiii- -roup of tlii' 'l'i|Hiliil;r. liaron ()>lcn Sarkcii in llic 

 -Monnmaph^ (,r the Xoilli Ani.Ti.'an Dipt.Ta ^p.■ak^ of tlicii 

 as a ••Miiall, luit wry iciiiarkahlc ,-i-nup of species. (^.Mipyini,' 

 '•111 is(p|atf:l ami intci-niciliatt' position hcfwccn the ri/nili>hi 

 hr,rlp,i/iu an<l lnn,ii,nil /u." 'I'h,. >.trnclnrc of tli,. adult Hies, 

 .•specially as rc,-ar<ls certain ddails of the vciiatimi ,,r the 

 \vin,-s. is ,|uilc nni(|nc Imt it is in the innnaturc sta-cs df the 

 • liffcrcnl -cnci-a iliat 1lic nnst intcivstin- dislincticuis are 

 loiinil. The larva, instead ,,r li\in,- in the mud ahni- the lianks 



••nmelly larva', dw.'ll upon the leaves uf' varinns terrestrial 



tlicy .are hri-ht i^reen and usually resenihle the leaves nf tlieir 

 iio-t plants In a very reniarkahle de-ree. 



'idle larva cf CiilnHhnlunin ,/isli„rt issinni M.u-en lives on 

 the lower surface of the leaves of various plants {Slr/laria !>., 

 .lini„n„r (d'cuirn.) L., ]'in/,i ('r,uii-ii.) L.) and eats elon-ate.i 

 lieles in theiu. The lar\a hefore under-oin- its transfornia 

 tions, le.axcs its hn>t plant and crawls to some -rass-stalk. 

 where it passes the pupal s1a-e. The larva of 'frinf/uui tris„l- 

 cdfd Sclmniiiiel. is a(|uatic. lixin,-- (ui the !i'a\-es o|' the ^uhnu'r^icil 

 moss, Foiiliiialls ,n/l i/,ifrrti,a 1... in small alpine streams where 

 it was tirst found in Sa.'ckiui;en at an altitude of nearly dOdO 

 feet; it spends the wintei- as :i larva, the first specamens hein- 

 found by Prof. Steiniuann at the end of April, fourteen days 



