.'ilU Prof. M. B.'zzi on the First 



^TOHtly ilt'Vi;lopoil anil bisected front coxoe, the subulate 

 al)iloiiion of the fornalo with the hist sc;4inonts ovipositoi-likf, 

 are as in the South-Animican forms of C/iiroini/za, in wiiich 

 there is also a great difference of size in the sexes*. 



It is important to notice that this first Strutioinyiid with 

 vestigial wings is so advanced in wing-reduction, being nearly 

 apterous and with tlie posterior part of the thorax undeveloped. 

 It seems to bo not rare in New Soutli Wales and Victoria, 

 the times of ap[)earance being Februar}', i\[arch, and May ; 

 most specimens have been found in the mountains. 



In my opinion the Australian species of Chiromyza belong 

 to a genus different from the true South-American one, the 

 third longitudinal vein being typically forked (even if 

 ]\Ir. Hardy has shown the variability of this character) in 

 Australian sjiecies, while it is typically .simj)le in the American 

 ones. In this case the name JJoreoides can be used for tho 

 Australian Chiromyzd's, even for those with normally winged 

 females. The apterous condition of the female sex only is 

 not of generic value, as shown, for example, by the genus 

 Tipula. 



In a recent paper by Dr. G. En lerlein (" Ueber die 

 jdiyletisch iilteren Stratiomyidensubfamilien," in Mitteil. 

 Zoolog. Mus. Berlin, x. 1921, pp. 153-214) a new genus 

 Archimyza was erected for what seems to be the species 

 described and figured by Hardy under the name of Chiromyza 

 australis, Macquart. 



In comparing the two Tasmanian specimens before me with 

 the figures and descriptions of the tj-pe-species siibulatusy I 

 have found some differences of great value, and it seems 

 better to separate them as a new form, although on j). 54 L of 

 his paper Mr. Hardy says : — " Specimens from Tasmania 

 t;iken on the summit of Mt. Wellington, and one taken by 

 Mr. C. E. Cole near Bellerive, Hobart, undoubtedly belong- 

 to this species, but unfortunately they are not available for 

 study at the time of writing this paper." 



Boreoides tasmaniensis^ sp. n., ? . (See figure.) 



Type-female and an additional specimen of same sex in the 

 South Australian Museum from Hobart, Tasmania [Lea). 



Length of body lG-17 mm. 



Agreeing with Hardy's description and figure of suhidatus 

 female, but differing in the following points : — 



(a) The third antennal joint has the annulation very 

 distinct and deep, being divided into three parts. 



* Several pairs of Chirouiyza fuscana, Wied., from Pura,},'iiay in my 

 collection, taken in copula by Mr. Sclirottky, uu'.'isuro H ihmii. iu length 

 in the niale-j and l.j 17 nnii. in llnj feniiiks. 



