254 YNGVE SJÖSTEDT, ACRIDIODEA AUSTRALICA. 



viter excisus; pronotum prsesertim supra valde rugosum, rugulis callosis irregularibus; 

 carina mediana perspicua sulcis transversis duobus (tribus) secta; sulcus anticus (interm.) 

 medio situs; carinse laterales in <£ magis, in $ minus distinctse, rugulis in lineam po- 

 sitis indicatse; antennce filiformes, compressse, capite pronotoque paulo breviores (?) 

 vel subaequilongse (d); tuberculum prosternale subcrassum, ab antico posticoque paulo 

 compressum apice late rotundato; elytra valde distantia, lobiformia, angusta, latere 

 interiore et exteriore subparallelis, pronoto breviora, marginem posticum segmenti 

 primi attingentia (?) vel leviter superantia (J); abdomen supra antice rugosum postice 

 subglabrum, subtus glabrum; costa superomedia femorum posticorum remote serrata, 

 apice in spinam parvam acutam producta; lobi geniculares rotundati; tibice posticse 

 intus spinis 9 extus 8 armatse; 



c? Cerci parvi, retrorsum attenuati, leviter incurvi, apice extus impressi; lobi 

 metasternales paulo distantes. 



? Lobi metasternales valde distantes. 



Tota fusco-testacea, antennis interdum paulo pallidioribus; costa frontalis, 

 margo posticus pronoti et costse femorum posticorum maculis parvis nigris; area 

 internomedia femorum posticorum antice nigra, post medium fascia transversa vel 

 apice toto flavida. 



Specimina in spiritu conservata lsete testacea plus minusve fusco maculata et 

 adumbrata. 



J 1 : Long. 15, pron. 3,5. elytr. 2.5, fem. post. 8, tib. post. 7 mm. 



$: 24, » 5, 4, » » 11.5 '» » 10 » 



Patria. W. Australia: Geralton (Mjöberg) 1 o, 5 $, typ., (in copul. 30: IX) 

 Mus. Stockholm. - S. W. Australia: Buckland Hill et Rottnest (Exp. 1905) d"?$ 

 Mus. Hamburg et Stockholm. 



Porraxia n. gen. 



(?): Costa frontalis inf ra ocellum leviter impressa, clypeum versus sensim ampliata, 

 evanescens, sparse et grosse impresso-punctata, supra ocellum planiuscula et crebrius 

 impresso-punctata; a latere visa costa frontalis recta leviter declivis; facies inter 

 costas laterales leviter rugosa; costse laterales subrectse leviter undulatse; foveolse 

 verticis late triangulares ; fastigium supra impressum impressione elongata carina 

 mediana nulla, marginibus anticis antrorsum valde convergentibus medio vix con- 

 tiguis, marginibus lateralibus subparallelis retrorsum levissime convergentibus; vertex 

 medio carinula mediana gracili; antennce filiformes apice leviter ampliatse; pronotum 

 margine antico levissime curvo medio subrecto; margo posticus medio cordiformiter 

 incisus; lobus anticus levissime rugosus, lobus posticus leviter sed crebre impresso- 

 punctatus; margo inferior submedio leviter rotundate productus parte anteriore recta 

 posteriore leviter curva; carina mediana gracilis sulcis tribus secta; carinse laterales 

 rugis gracilibus leviter indicata, retrorsum valde divergentes; tuberculum prosternale 

 parvum, late conicum, leviter compressum, acuminatum; intervallum loborum mesoster- 

 nalium transversum, rectangulare; lobi metasternales valde distantes; femora postica 



