180 YNGVE SJÖSTEDT, ACRIDIODEA AUSTRALICA. 



punctatus et ut lobus anticus rugosus; pronotum supra planiusculum sulcis tribus 

 sat profunde sectum; carina mediana gracilis, carina? laterales plicis sat distincte 

 indicata?; margo inferior pronoti medio rotundato-productus, raargo posticus rectus; 

 tuberculum prosternale cylindricura, ab antico posticoque sat compressura apice late 

 rotundato, retrorsum leviter angustatum; intervallum loborum mesosternalium sub- 

 quadratum retrorsum ampliatum; lobi metasternales valde distantes; (pedes postici 

 desunt). 



Infuscata; vertex et dorsum pronoti inter rugas laterales brunneo-flavida; an- 

 tennas testaceEe apice leviter infuscata?; elytra opaca nervis fusco-brunneis, basi magis 

 fusco-brunnea, extus fusco punctata, margine postico brunneo-flavido; ala? hyalina? 

 nervis fuscis, ad basin opaca? nervis pallidis. 



$ : Long. c. elytr. 37, corp. 30, ant. 9, pron. 6,5, elytr. 28 mm. 



Patria. S. Australia: Killalpanima, 100 miles E. of Lake Eyre (Hillier) 1 $ 

 typ. Brit. Museum. 



Peakesia mediocris n. sp. — Taf. 18, Fig. 11. 



$: Costa frontalis non sulcata, a basi os versus sensim leviter ampliata, supra 

 os evanescens, infra ocellum impressum, pra?sertim supra ocellum impresso-punctatum, 

 punctis hic in lineis duabus positis; facies glabra; costa? laterales leviter curva?; costa 

 subocularis ab oculis separata distincta; fastigium supra rotundate-impressum mar- 

 gine antico curvo; carina mediana verticis gracilis dimidium impressionis non attingens; 

 antennce filiformes parte basali leviter compressa?, quam caput et pronotum unita lon- 

 giores; pronotum supra planiusculum, antice leviter curvum, postice leviter productum 

 lateribus utrinque compressis vel levissime incurvis; lobus anticus leviter rugosus, 

 carina? laterales rugis gracilibus utrinque in lineas positis leviter indicatse; carina 

 mediana humilis, perfecta, sulcis tribus secta, sulcus posticus distincte post medium 

 situs; lobus posticus supra minute impresso-punctatus, in lateribus crebre reticulatus, 

 pra?sertim supra rugis elongatis sparsis instructus; margo inferior medio rotundato- 

 productus; tuberculum prosternale ab antico posticoque valde compressum, latum, 

 retrorsum angustatum, apice truncato medio leviter emarginato utrinque late rotun- 

 dato; intervallum mesosternalium leviter elongatum, subquadratum, retrorsum leviter 

 ampliatum; lobi metasternales valde distantes: costa superomedia femorum posticorum 

 serrata postice in spinam acutam producta, costa? cetera? glabra?; tibia? postica? extus 

 7 — 9, intus 9 — 10 spinosa?. 



Testacea subtus flavida; facies pra?sertim costa frontalis plus minusve nigro 

 punctata; pronotum sparse nigro punctatum vel minute rotundato-maculatum; an- 

 tenna? testacea? apice fuscas; femora postica supra minutissime nigro punctata; costa 

 superomedia, supero- et inferointerna nigro maculata?; tibia? postica? flavido-testacea? 

 spinis apice nigris; elytra opaca nervis testaceis, immaculata; ala? hyalina? nervis 

 pallidis apice fuscis. 



$: Long. c. elytr. 30 — 31, corp. 27, ant. 10 — 11, pron. 6, elytr. 21—22, fem. 

 post. 16,5 — 17,5, tib. post. 14 — 14,5 mm. 



Patria. N. Territory: Melvilie Isl., Bathurstlsl. (Hill) 2 $ typ. Mus. Stockholm. 



