LOCUSTIDJ5. 265 



Genus 55. LUCERA. 



Mas. Corpus rubustura, subtus nitens. Caput prothorace non 

 angustius, spatio inter oculos lato trans verse arcuatim carinato. Oculi non 

 globosi. Palporum articulus 4us 3o multo brevior; 5us clavatus, 3o multo 

 lougior. Prothorax subtilissime rugulosus, disco piano sulcis duobus 

 transversis, duobus obliquis unoque longitudinali, carinis lateralibus 

 indeterminatis, rnargiue postico subascendente subinciso. Abdomen lanceo- 

 latum, subcarinatum, apice quadrispinosum, prothorace duplo longius, 

 seg men tor urn marginibus posticis subdentatis. Pedes sat validi, femoribus 

 anticis bispinosis aut trispinosis, femoribus tibiisque posticis longissimis, his 

 quadriseriatim spinosis, illis biseriatim spiuosis. Alae erectae, contiguae, 

 abdominis apicein nou attingentes. 



Male. Body stout, shining beneath. Head as broad as the prothorax ; 

 space between the eyes broad, with a well-defined transverse curved keel ; 

 a slight transverse furrow between the front and the face, which is small. 

 Eyes small, slightly prominent. Palpi moderately long; apical joint 

 clavate, not truncated ; fourth joint of the maxillary much shorter than the 

 third; fifth much longer than the third. Antennce slender. Prothorax 

 very finely rugulose, much narrower towards the hind border, which is 

 slightly elevated and notched ; disk flat, with two transverse, one longi- 

 tudinal and two oblique furrows; lateral keels not defined; sides slightly 

 rounded. Abdomen lanceolate, slightly keeled above, full twice the length 

 of the prothorax, with four apical spines, the two upper spines much shorter 

 than the two lower, hind borders of the segments slightly dentate in the 

 middle. Legs moderately stout ; fore femora with two or three very minute 

 spines beneath near the tips ; hind femora and hind tibia? very long; hind 

 femora incrassated towards the base, with fire minute spines on each side 

 beneath ; tibiae with four rows of numerous minute spines. Wings vertical, 

 contiguous, not extending to the tip of the abdomen. 



The broader and less rounded space between the eyes and its transverse 

 keel distinguishes this genus from Decticus. 



1. LUCERA BICOLORIPES. 



Mas. Testacea, tibiis quatuor anterioribus fuscis, tarsis quatuor anleriori- 

 bus fulvis. 



Male. Testaceous. Eyes piceous. Four anterior tibiaB brown ; four 

 anterior tarsi tawny. Wings like the body in colour. Length of the body 

 11 lines. 



a. Macao, China. Presented by J. C. Bowring, Esq. 



Genus 56. DEXERRA. 



Mas. Corpus glabrum, sat robustum. Caput prothorace vix angus- 

 tius, apud antennas subporrectum et subrotundatum ; frons obliqua, sparse 

 punctata. Oculi raagni, rotundi, globosi. Palporum articulus 3us 4o 

 paullo brevior; 5us subclavatus, 4o multo longior. Prothorax brevis, 



