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PERCY SLADEN TRUST EXPEDITION 



Australia. All the species here described as new, with the exception of Geranomyia 

 immaculata, fit fairly well into existing genera. The most interesting insects in the 

 collection however are the Ceratocheilus and the two species of Styringomyia ; these 

 have also proved of value indirectly, since in determining them I have been able to 

 clear up some interesting points of synonymy. 



The relationships of the fauna as a whole are necessarily not very evident, since 

 the collection of Tipulidse in the tropics has been so much neglected, owing no doubt 

 to their extreme fragility. There seems however to be a closer connection with Africa 

 than with India. The various relationships can best be expressed by means of a 

 table : 



In regard to some of the generic names used, explanation is necessary. Some 

 writers are following Hendel and Coquillet in adopting the nomina nuda — for such 

 they are for practical purposes — of " Meigen's 1800 paper." The present writer, in 

 common with many of our leading dipterists, refuses to accept these, for other reasons 

 besides the one given. Secondly, the name Furcomyia, substituted by Coquillet for 

 Dicranomyia, is rejected. The writer considers that its validity dates from 1910, as 

 Meigen merely quoted it as a manuscript name given by Megerle, and neither adopted 

 it nor gave any description. Dicranomyia therefore takes precedence. The same 

 argument will apply to " Marginomyia" and Dicrcmoptycha. Limonia (Meigen 1803) 

 has sometimes been used for Limnobia (Meigen 1818), but is not adopted here, as the 



