CATALOGUE OF OliTHOPTEROUS INSECTS. 



carinato ; pedibus integerrimis elongatis submarmoratis ; 

 pedum anticorum tarsis articulo lmo reliquis bis longiore ; 

 vagina vix usque ad apicem abdominis producta (fcem.). 



Lat. corp. 1"'; long. corp. 2" 5'"; mesoth. 7'"; me- 

 tath. 5'" ; ped. ant. 2" ; ped. med. 1" 5'" ; ped. post. 1" 9'". 



Phasma (Bacillus) Javanus, Be Haan, Orth. Orient, p. 138. 

 pi. 15. f. 8. fem. 

 ITab. Java. 



Obs. In Fuessly's * Archives,' Herbst has figured (pi. 5 1 . 

 f. 2, 3) an Indian insect which seems very closely to re- 

 semble De Haan's figure of B. Javanus. Herbst's descrip- 

 tion is, however, too vague to enable us to determine the 

 question. 



18. Bacillus Beroe, Westw. Plate XXII. fig. 2. 

 Gracillimus, subfiliformis, inermis ; antennis brevissimis ; 



meso- et metanoto cum abdomine linea teuuissima dorsali 

 mediana notatis ; segmentis abdominalibus e basi sensim 

 attenuatis, lateribus longitudinaliter impressis ; apice acuto ; 

 stylis caudalibus brevissimis ; pedibus gracilibus iuermibus 

 (fcem.). 



Long. corp. unc. 2, lin. 5 ; ant. lin. 2\ ; proth. lin. 1£ ; 

 mesoth. lin. 6} ; metath. lin. 5 ; abdom. lin. 13+lin. 3= 

 lin. 16. 



Hab. In India orientali (Mrs. Major Hamilton). In 

 Mus. Soc. Entom. Londinensis. 



Olivaceous ash-coloured, with a paler very slender longi- 

 tudinal dorsal and lateral line extending from the front of 

 the mesothorax to the extremity of the abdomen ; very 

 slender and subfiliform, destitute of spines or tubercles. 

 The head narrowed behind. Antenna scarcely longer than 

 the head, about 18-jointed ; the first joint large, setose, and 

 carinated along the upper surface ; the third and following 

 joints very short and rather irregular in size. The meso- 

 and metathorax are each gradually widened from the middle 

 to the insertion of the legs. The abdominal segments are 

 marked on each side of the median line with three slightly 

 raised elevated longitudinal lines ; the segments are gra- 

 dually narrowed to the extremity, which is slightly acumi- 

 nated, with the two very short anal styles scarcely visible 

 at the extremity. The operculum extends to the middle 

 of the ninth dorsal segment. The legs are long, slender, 

 and simple. 



Plate XXII. Pig. 2. The female, of the natural size. 2 b. 

 The terminal segments of the abdomen seen sideways. 



19. Bacillus Regulus, Westw. Plate XXII. fig. 5. 

 Elongatus, gracilis, subconvexus ; antennis brevibus ; 



abdomine e basi ad apicem acutum attenuato ; capite inter 



oculos bispinoso ; mctathorace longiori ; abdominis apice 

 longe fisso ; operculo apicem abdominis longe superaute ; 

 pedibus anticis simplicibus ; femoribus 4 posticis irregula- 

 riter parce serratis ; tibiisque prope basin externe foliolo 

 parvo acuto instructis (fcem.). 



Long. corp. unc. 3J ; ant. lin. 6 ; proth. lin. 1£ ; mesoth. 

 lin. 7 ; metath. lin. 6 ; abdom. lin. 20 + lin. 5 + operc. lin. 2 

 =lin. 27. 



Hab. In India orientali (Mrs. Major Hamilton). In 

 Mus. Soc. Entom. Londinensis. 



Elongate, slender, subconvex, smooth, and entirely of 

 an obscure brown colour. The head with two conical erect 

 spines between the eyes. The antenna? about half as long 

 as the fore femora, 20-jointed ; the basal joint wide and 

 flattened. The mesothorax of moderate length. The me- 

 tathorax nearly as long as the mesothorax. The abdomen 

 long, widest at the base, gradually attenuated to the tip, 

 which is acute and deeply cleft. The operculum is very 

 long, slender, and bent upwards, extending far beyond the 

 extremity of the abdomen. The fore legs are long and 

 slender ; the four hind legs are shorter. The femora irre- 

 gularly and widely serrated, as are also the tibise, which 

 have a conical lobe on the outside near the base. The 

 basal joint of the tarsi is long and slender. 



Plate XXII. Fig. 5. The female, of the natural size. 5 a. The 

 head and prothorax seen sideways. 5 b. The terminal seg- 

 ments of the abdomen seen sideways. 



20. Bacillus Darnis, Westw. 

 Plate XXIII. fig. 2, male; fig. 3, female. 



Fuscus, obscurus, subgranulatus, gracilis ; pedibus gra- 

 cilibus ; capite postice elongato ; antennis capite paullo 

 longioribus ; capite inter oculos tuberculis duobus parvis 

 conicis instructo, alteris duobus in parte antica et duobus 

 in parte postica pronoti ; meso- et metathorace et segmentis 

 abdominis versus marginem posticum spinula parva arma- 

 tis ; his etiam ad basin et apicem utrinque paullo dilatatis. 

 Mas obscurior, linea dorsali metanoti, et basi femorum sub- 

 rufis (mas et fcem.). 



Mas. Long. corp. unc. 1J ; cap. lin. 1 ; proth. lin. f ; 

 mesoth. lin. 4 ; metath. lin. 3 ; abdom. lin. 7 + lin. 2= 

 lin. 9. 



Fcem. Long. corp. lin. 21 J ; cap. lin. If ; proth. lin. i\ ; 

 mesoth. lin. 4| ; metath. lin. 3^ ; abdom. lin. 8 + lin. 2= 

 lin. 10. 



Hab. Sarawak, Borneo (D. Wallace). In Mus. Saun- 

 ders. • B.M. 



This small slender species is of. an obscure brown colour, 

 the male being considerably darker, with a dorsal line along 



