GBYLLlDjE. 91 



the hind border of each segment. Cerci a little longer than the body.- 

 Oviduct nearly as long as the body ; tip piceous. Legs with black bands, 

 which in the femora are interrupted beneath. Length of the body 

 7 lines. 



a. N. Australia. Presented by J. R. Elsey, Esq. 



kk. Eyes very prominent. 

 /. Legs stout. 



Genus 33. ORBEGA. 



Fcem. Corpus gracile, nitens, fere lineare. Oculi valde prominuli, 

 subproducti, sat magni. Palporum articulus 3us oblique truncatus, 2o 

 asquilongus. Protborax subtransversus, anlice paullo angustior; latera 

 antice latiora. Oviductus abdomine non brevior. Cerci longiores. Pedes 

 validi, longiusculi ; tibiae posticae utrinque serratae et quadrispinosae. 



Female. Body slender, smooth, shining, nearly linear. Head as 

 broad as the proihorax. Eyes rather large, very prominent, slightly 

 elongated. Palpi slender; tliird joint obliquely truncated at the tip, as 

 long as the second. Prothorax slightly transverse, slightly narrower in 

 front above ; vertical part on each side much broader in front. Cerci longer 

 than the oviduct, which is as long as the abdomen. Legs stout, rather 

 long ; hind tibiae serrated and with four spines on each side, spines on the 

 outer straight, alternate with the curved spines on the inner side. 



1. ORBEGA PALLIDA. 



Fcem. Pallide testacea ; caput vittis quatuor fulvis inlerruplis; pro- 

 thorax litura cilhariformi vittisque duabus piceis ; femora postica 

 strigatis ; alee vix ullte. 



Female. Pale testaceous. Head with four interrupted tawny stripes 

 on the vertex. Prothorax wilh a piceous somewhat lyre-shaped figure in 

 the disk and with a piceous stripe on each side. Hind femora with oblique 

 streaks; tibiae wilh three piceous spines on the outer side and with four on 

 the inner side. Wings rudimentary, with blackish stripes. Length of the 

 body 7^ lines. 



a. ? From Mr. Macgillivray's collection. 



II. Legs slender. 

 Genus 34. NISITRA. 



Mas el fam. Corpus gracile. Caput parvum; vertex brevis ; facies 

 subproducla. Oculi valde prominuli. Palporum articulus 3us subclavatus. 

 Antennas gracillimae, corpore plus duplo longiores. Cerci abdominis 

 dimidio breviores. Oviductus corpore non brevior. Pedes longi, graciles; 

 femora postica abrupte aitenuata; tibiae posticae subserratae, quadrispinosae. 

 Alae aniicae abdominis apicein attingeutes, maris tympauo beue delermiuato. 

 Aiae posticae abdomen longe superantes. 



Male and female. Body slender. Head small ; vertex short ; face 

 somewhat elongated. Eyes very prominent. Third joint of the palpi 

 subclavate. Antennae very slender, more than twice the length of the body. 



