266 CATALOGUE OF 



postice angustior, carinis lateralibus non conspicuis, margine postico valcle 

 rotundato. Abdomen lineare, prothorace multo angustius. Pedes femori- 

 bus posticis diraidio basali incrassatis, tibiis quatuor anterioribus biseriatim 

 spinosis, tibiis posticis quadriseriatim spinosis. Alae minimos. 



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

 thorax, slightly rounded and prominent between the eyes ; front 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 incrassated 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. 



1. DEXERRA TURPIS. 



Mas. Sordide teslacea, fusco subconspersa ; caput inter oculos fusces- 

 cente uninotatum ; antenna: picete, basi fulvce ; femora transverse 

 striata, olivaceo suffusa. 



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

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

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

 side. Length of the body 7 lines. 



a. Australia. Presented by the Haslar Hospital. 



Genus 57. NATRICIA. 



Mas et fam. Corpus robuslum, breve. Caput prothorace paullo 

 angustius, spiua parva obtusa inter oculos armatum, spatio inter antennas 

 perangusta ; frons perparum obliqua. Oculi globosi. Palporum articulus 

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

 simae, gracillimae, subpubescentes. Prothorax margine postico rotundato, 

 sulco longitudinali tenuissirno sulcoque transverse angulato, carinis laterali- 

 bus indeterminalis. Abdomen prothorace plus duplo longius. Oviductus 

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

 uniseriutim quadrispinosis, femoribus tibiisque posticis biseriatim spinosis. 

 Alae brevissimae. 



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

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

 between the antennae very narrow, angular towards the spine before 

 mentioned; front very slightly oblique. Eyes prominent, moderately large. 

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

 fourth ; fifth subclavale, much longer than the third. Antennae very long 

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

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

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



