LOCUSTID^. 281 



rather slender; hind femora with a few minute spines beneath ; hind knees 

 with a spur beneath ; four anterior tibiae with six minute spines on each 

 side beneath ; hind tibiae with numerous minute spines in four rows. 

 Fore winjjs coriaceous, rather longer than the hind wings; transverse veins 

 very numerous and irregular; interior border dilated at the base; tym- 

 panum small. Hind wings ample. 



This genus may be distinguished from Decticus by the slender keel 

 between the antennae, and by the rounded prolhorax without lateral 

 keels. 



1. Lanciana albidigornis. 



Mas. Testaceo-cinerea ; anlennce albidcB ; abdomen fuscum, suhtus 

 fulviim ; femora poslica nigro univiltala ; tibice posticce bad albidcB ; 

 al(B anticcB linea discoidali e punctis fuscis ; alee posticce diapliancBy 

 paliido venosce. 



Male. Testaceous-cinereous. Eyes lurid. Mandibles with brown 

 tips. Antennae whitish. Mesothorax, metathorax and abdomen brown, 

 the latter tawny beneath. Hind femora with a black stripe on the outer 

 side; hind tibiae whitish at the base. Foie wings with a line of brown 

 points in the disk. Hind wings pellucid ; veins pale. Length of the body 

 9 lines; expansion of the fore wings 20 lines. 



a. Australia. From Mr. Daniel's collection. 



Genus 65. PIURA. 



Fcem. Corpus gracile, glabrum, nitens. Caput spina brevi valida 

 porrecta carinata obtusa inter antennas instructum; frons erecta, longius- 

 cula ; labium sat longum. Oculi fere rotundi, valde globosi. Palpi 

 maxillares longuisculi; articulus 3us 40 paullo brevior; 5us 3o paullo 

 longior. Antennae longce, graciles. Prothurax longiusculns, supra planus, 

 transverse quadrisulcatus, lateribus valde rotuudatis, uiaigine postico recto. 

 Abdomen compie.ssum, prothorace plus duplo longius. Oviductus vix 

 arcuatus, abdomine brevior. Pedes longi, graciles ; feujora postica biseria- 

 tim spinulosa, basi incrassata; tibiae quatuor anteiiores biseriaiim sex- 

 spinosa?; tibiae posiica3 quadriserialim spinulosfE. Alae aniicae longae, 

 coriacege, sal angustae, confertissime reiiculaiae. Alae posticae ampiae, 

 paullo breviores. 



Female. Body slender, smooth, shining. Head with a short, stout, 

 porrect, keeled, obtuse spine between the antennas; front erect, rather 

 long; labium elongate. Eyes nearly round, very prominent. Palpi 

 pubescent; apical joint clavate, truncated at the tip. Maxillary palpi 

 rather long; fourth joint a little longer than the third ; fifth a little shorter 

 than the fourth. Antennae long, slender. Prothorax elongate, linear 

 above, with four transverse furrows, of which the first and third are angular; 

 the flat dorsal part much wider towards the hind border, which is straight; 

 deflexed sides much rounded. Abdomen compressed, more than twice the 

 length of the prolhorax. Oviduct hardly curved, rather shorter than the 

 abdomen. Legs slender, long ; hind femora iucrassated towards the base, 

 with two rows of minute teeth beneath; four anterior tibiae with six long 

 spines on each side; these spines from the first pair to the last successively 



