GRTLLIDyE. 91 



the hind border of each segrment. 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 

 sequilongus. Prolborax subtransversus, anlice paullo angustior; latera 

 amice laliora. Oviduclus abdomine non brevior. Cerci longiores. Pedes 

 validi, longiusculi ; tibiae posiicae ulrinque serratae et quadrispinosEe. 



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

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

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

 long as the second. Prolborax slitjhtly 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. 



I. Orbeoa pallida. 



Fcem. Pallide testacea ; caput vitlis quatuor fulvis interruptis; pro- 

 thorax litura cilhariformi viltisque duabus piceis ; femora poslica 

 strigatis ; al(E vix ullce. 



Female. Pale testaceous. Head with four interrupted tawny stripes 

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

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

 streaks; libiee with three piceous spines on the outer side and with lour on 

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

 body "7^ lines. 



a. ? From Mr. Macgillivray's collection. 



//. Legs slender. 

 Genus 34. NISITRA. 



Mas et fcem. Corpus gracile. Caput parvum; vertex brevis ; facies 

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

 Antennae gracillimae, corpore plus duplo lon^iores. Cerci abdominis 

 dimidio breviores. Oviductus corpoie non brevior. Pedes longi, graciies; 

 femora postica abrupte altenuata ; tibiae posticaB subserraiae, quadrispinosae. 

 Alae aniicae abdominis apicem atlingentes, maris tympano bene determiualo. 

 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. 



