CATALOGUE OF ORTHOPTEROUS INSECTS. 



swollen and not angulated, the last extending to about half 

 the length of the ninth dorsal segment. 



Dr. Burmeister considers this insect may be the male of 

 his Bacteria gracilis {B. Abdul, Westw.), with broken 

 antennae ; such, however, is not the case, those organs 

 being perfect in the British Museum specimen. His de- 

 scription of the male of his B. gracilis is as follows : — 

 " Glaber, laevis ; femoribus omnibus muticis, posticis 4 cy- 

 lindricis ; antennis 1 6-articulatis in mare ; linea thoracis 

 laterali alba." 



8. Bacillus longiscaphum. 

 Cylindricus, lsevis ; capite cylindrico inermi ; antennis 

 21-articulatis; femoribus mediis et posticis subtus apice 

 utrinque 2-spinulosis ; foemince vagina valde elongata, 5'" 

 ultra abdomen producta. 



Phasma (Bacillus — Pachymorpha, Serv.) longiscaphum, 

 Dellaan, Orth. Orient, p. 101. 



Hub. Apud Promont. Bonse Spei in vinetis. 



9. Bacillus gracilipes, Westw. Plate VIII. fig. 5. 



Gracillimus, filiformis, inermis ; pedibus longissimis ; an- 

 tennis brevibus (dimidio femorum anticorum brevioribus) ; 

 abdominis apice clavato rotundato, stylis duobus capitatis 

 analibus instructo (mas). 



Long. corp. unc. 2f ; ant. lin. 7 ; proth. lin. 1 £ ; mesoth. 

 lin. 7 ; metath. lin. 7; abdom. lin. 14+lin. 3=lin. 17. 



Jlab. In Sierra Leone. B.M. 



Very slender, filiform, entirely destitute of spines. Black- 

 ish-brown, smooth, polished, but not glossy. Head luteous, 

 with a brown central vitta forming a dark trident between 

 the eyes. Meso- and metathorax with a pale line on each 

 side. Abdomen with a black central dorsal line, except on 

 the terminal convex portion ; the terminal abdominal seg- 

 ments pale huffish-brown. The antennas are short, not 

 reaching to half the length of the fore femora ; they are 

 15-jointed and slender. The meso- and metathorax are 

 slightly dilated behind for the insertion of the fore and 

 hind legs. The abdomen has the three terminal segments 

 gradually clavate, the last being the largest, convex and 

 rounded behind, with the two anal styles capitate at the 

 tip and exposed, crossing each other behind. The three 

 ventral segments scarcely reach beyond the base of the 

 ninth dorsal segment. The legs are very long, slender and 

 simple. 



I have adopted the MS. name applied to this species by 



Mr. G. R. Gray in the British Museum collection. It is 

 here first described. 



Plate VIII. Fig. 5. The male, of the natural size. 5 a. The 

 terminal segments of the abdomen seen sideways. 



10. Bacillus Capensis. 

 Viridis,l8evis,nitidus; capite oblongo, antice et postice eeque 

 lato, supra piano, utrinque linea obscura viridi pone oculos ; 

 prothorace capitis magnitudine, canalicula tenui media 

 transversa ; mesothorace long. lin. 4, absque carina media, 

 postice parum latiori ; metathorace mesothoracis longitu- 

 dine, hujus parte postica latitudine aequali ; abdomine e 

 medio ad apicem sensim attenuato ; lamina supra anum 

 laminam subanalem longitudine linea? excedente ; pedibus 

 muticis, longitudine mediocri, intermediis reliquis breviori- 

 bus, anticis majoribus, articulo lmo tarsorum anticorum 

 reliquis multo longiori, 4to omnium minuto ; antennis con- 

 coloribus, subulatis, circiter 22-articulatis, articulo lmo 

 subdepresso, quadrangulari, 2ndo minuto, globoso, 3tio 

 longo (fcem.). 



Long. corp. 2 unc. 



Bacillus Capensis, Serv. H. N. Orth. p. 257. 

 Be llaan, Orth. Orient, p. 137. 

 Hob. Apud Promont. Bonos Spei. 



11. Bacillus Stelleuboschus, Westw. Plate II. fig. 4. 



Filiformis, luteo-viridis, glaber, nitidus, lateribus capitis et 

 corporis pedibusque lsete viridibus ; antennis et pedibus 

 brevibus ; femoribus seriatim nigro-punctatis, et apicem 

 versus intus serrulatis ; segmento ultimo abdominis emargi- 

 nato, stylis duobus longitudinalibus forcipem simulantibus 

 (mas). 



Long. corp. lin. 23 ; ant. lin. 6| ; proth. lin. 1 ; mesoth. 

 lin. 5; metath. lin. 4; abdom. lin. 9£+lin. 2i=lin. 12. 



Hab. Apud Promont. Bonse Spei. B.M. 



Luteous-green, smooth and glossy, with the sides of the 

 head and body as well as the legs bright grass-green ; very 

 slender, cylindric, and filiform. The hind part of the meso- 

 and metathorax and the seventh and eighth segments of 

 the body rather dilated. The head, thorax, and abdomen 

 with the surface entire and smooth. The antennas short 

 and 20-jointed. The legs rather short and simple ; the fore 

 femora curved at the base, the four posterior slightly thick- 

 ened, and all finely serrated towards the tip beneath. The 

 seventh and eighth segments of the abdomen dilated into 

 an oval mass, and the ninth obconic-truncate, with the 

 middle of the hind margin notched ; on the under side near 



