266 CATALOGUE OF 



postice angustior, carinis lateralibus non conspicuis, raargine postico valde 

 rotundato. Abdomen lineave, prutliorace multo angiistius. Pedes femori- 

 bus posticis diraidio basali incrassatis, tibiis quatuor anterioribiis biserialim 

 spinosis, tibiis posticis quadriseriatira spinosis. Alae minimae. 



Male. Body smoolb, rather stout. Head nearly as broad as the pro- 

 thorax, slightly rounded and prominent between the eyes ; IVont oblique, 

 thinly punctured. Eyes large, prominent, round. Third joint of the 

 maxillary palpi a little shorter than the fourth ; fifth subclavate, much 

 longer than the fourth. Third joint of the labial palpi subclavate, much 

 longer than the second. Antennae long, slender. Prolhorax short, 

 narrower towards the hind border, which is much rounded and slightly 

 elevated; sides rounded, lateral keels not defined. Abdomen linear, much 

 narrower than the prothorax. Hind femora incrassaied for half the length 

 from the base, slender from thence to the tips; four anterior tibiae with five 

 rather long spines on each side; hind tibiae with very numerous spines in 

 two rows above, and with very few in two rows beneath. Wings rudimen- 

 tary. 



The prominent eyes and the prothorax without lateral keels distinguish 

 this genus from Decticus. 



I. Dexerra turpis. 

 Mas. Sordide testacea, fusco subconspersa ; caput inter oculos fasces- 

 cente uninotatum ; antennce picecB, basi fulvce; femora transverse 

 striata^ olivaceo suffuses. 



Male. Dingy testaceous, slightly speckled with brown. Head with a 

 brownish mark between the eyes. Antennce piceous, tawny towards the 

 base. Femora with a pale olive-green tinge, transversely striated on each 

 side. Length of the body 7 lines. 



u. Australia. Presented by the Haslar Hospital. 



Genus 57. NATRICIA. 



Mas et fcem. Corpus robustum, breve. Caput prothorace paullo 

 angustius, spina parva obtusa inter oculos armatnm, spntio inter antennas 

 perangusta ; frons perparum obliqua. Oculi globosi. Palporum articulus 

 3us 4o multo longior; 5us subclavatus, 3o multo longior. Antennae longis- 

 simae, gracillimae, subpubescentes. Prothorax margine poslico rotundato, 

 sulcolongitudinali tenuissimo sulcoque transverse angulato, carinis laterali- 

 bus indelerminalis. Abdomen prothorace plus duplo longius. Oviductus 

 brevis, latus, arcuatus. Pedes graciles, femoribus quatuor anterioribus 

 uniseriatim quadrispinosis, femoribus tibiisque posticis biseriatim spinosis. 

 Alas brevissimae. 



Male and female. Body staut, short. Head a little narrower than 

 the prothorax, with a minute rounded spine between the eyes; space 

 between the antennce very narrow, angular towards the spine before 

 mentioned; front very slightly oblique. E^es prominent, moderately large. 

 Palpi slender; third joint of the maxillary palpi much longer than the 

 fourth; fifth subclavate, much longer than the third. AntennaB very long 

 and slender, very minutely pubescent. Prothorax with a very slight longi- 

 tudinal furrow and with au angular transverse middle furrow; lateral keels 

 not defined; sides much rounded; hind border rouuded. Abdomen a little 



