LOCUSTID^. 265 



Genus 55. LUCERA. 



Mas. Corpus robustura, subtus nitens. Caput prothorace non 

 angustius, spatio inter oculos lalo transverse arcuatim carinato. Oculi non 

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

 loiigior. Prothorax sublilissime rugulosus, disco piano sulcis duobus 

 Iransversis, duobus obliquis unoque longitudinal!, carinis lateralibus 

 indelerminatis, margine postico subascendente subinciso. Abdomen lanceo- 

 latum, subcarinatuni, apice quadrispinosura, prothorace duplo longius, 

 segiuentorura marginibus posticis subdentatis. Pedes sat ralidi, femoribus 

 anticis bispiiiosis aut trispinosis, femoribus tibiisque posticis longissimis, his 

 quadriseriatiui spiiiosis, illis biserialim spiuosis. Alae erectae, contiguae, 

 abdominis apicem non attingentes. 



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

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

 a slight transverse I'urrow 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. Antennae 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 tibise very long; hind 

 femora iacrassaled towards the base, with five minute spines on each sida 

 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 qualuor anteriori- 

 bus fulvis. 



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

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

 1 1 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 subrolundatum ; frons obliqua, sparse 

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

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



G 



