AUSTSALIAN BLATTIDJi.— ELAND SHAW. 151 



AUSTRALIAN BLATTID/E. 



WITH DESCRIPTIONS OF ELEVEN NEW SPECIES. 



By Eland Shaw, M.R.C.S., F.E.S., &c. 

 (Seventeen original Text-figures.) 



In the following paper sixteen species of Blattid.e are dealt with, eleven 

 o which are new to science ; nine of these are from Queensland, one from Victoria, 

 and one from Western Australia ; and two cosmopolitan species are noted, which have 

 not previously been recorded from Australia. 



A revision of the genus Cutilia Stal will soon be advisable. The tegminal vestiges 

 may be entirely absent, as in Cutilia tepperi mihi, and the diagnosis of the genus as 

 given by Shelford in Wytsman's Genera Insectorum, Fasc. 109 (1910), should be 

 enlarged to include this, a fact not to be wondered at when the close alUance between 

 Cutilia and Platyzosteria is considered. Shelford includes six species in the genus 

 Cutilia, and in the present paper five new species are added to these. 



The following definitions of the words " Type" and " Cotype" are thought 

 desirable, in view of the misuse of these terms which now commonly prevails : — 



" Tjrpe" — The actual specimen from which a description is written, when 

 only one specimen has been so used ; and the use of the word prohibits 

 the use of the word Cotype in respect of the same species. Note. — There 

 may be sejjarate types of (J and $. 



" Cotjrpe" — One of a series of two or more actual specimens from which 

 a description is wTitten ; and the use of the word prohibits the use of 

 the word Type in respect of the same species. Note. — There may be 

 separate cotypes of ^J and $. 



ON THE ABBREVIATION OF THE ORGANS OF FLIGHT IN CERTAIN 



BLATTID^. 



The organs of flight of many Blattidae display an abbreviated condition 

 usually known amongst Blattidists as "rudimentary" ; but it appears evident, from 

 a consideration of the numerous apterous and semi-apterous Blattid forms, that 

 these abbreviated tegmina and wings should be regarded as vestiges of lost organs, 

 rather than as rudiments of organs to come. Sometimes as in Escala — an Ectobine 

 genus — the males have the tegmina and wings fully explicate, whilst in the females 



