PHASMID.E. ACANTIIODERUS. 



51 



11. (139.) Acanthoderus coronatas. 



Corpore fusco, spinoso ; capite conico, margine utrinque 

 6-spinoso ; prothorace angulis extremis acutis, serie duplici 

 spinulosa media ; mesothorace medio et lateribus carinato, 

 carina media basi et apiee bispinosa, angulis externis spi- 

 nosis, mctathorace bis uti et abdominis articulis 7 anterio- 

 ribus medio semel bispinulosis ; lateribus sjiina simplice ar- 

 matis ; articulo 8vo medio carinato, lateribus dilatato ; fc- 

 moribus et tibiis tetragonis, angulo superiore 4-spinuloso. 



Mas. Corpore lineari, articulo 9° lobis 2 obtusis ternii- 

 nato ; vagina versus apicem gibbosa, apice margiuata. 



Lat. Corp. 2-^" ; long. corp. 2" ; mesoth. 6'" ; metath. 

 4'" ; ped. ant. lU"' ; ped. med. 9'". 



Foemina. Antennis 5"' longis, 27-articulatis ; corpore la- 

 tiore, spinis mediis brevioribus, articulo 9° lobis duobus 

 acutis terminato ; vagina subrecta, convexa, carina media 

 obtusa. 



Lat. Corp. 3i-4i"' ; long. corp. 2" ; mesoth. 5 V" ; me- 

 tatb. 3V" ; ped. ant. et post. 13'" ; ped. med. 1". 



Phasma (Pacliymorpha) coronatum, De Haan, Orthopt. 

 Orient, p. 137. pi. 14. f. 4 mas, f. 5 foem. 

 Hah. In Java, Amboina ; Borneo {Wallace). B.M. 



12. (140.) Acanthoderus Biifo, TJ'estw. 

 Plate II. fig. 0. 



Apterus, fuscus, corpore in medio (prfesertim metatho- 

 race) dilatato, granulato et spinoso ; capite postice spinis 4, 

 pronoto 6, duabus intermediis majoribus ; mesothoracis 

 lateribus spinosis, dorsoque spinis 2 ad marginem anticuni, 

 4 aliis ante medium cum duabus majoribus elevatis versus 

 marginem posticum ; metathorace spiuis 2 in medio alteris- 

 que 2 approximatis versus marginem posticum ; abdominis 

 segmentibus basalibus spinis duabus distantibus prope 

 basin alterisque 2 approximatis versus marginem jiosticum ; 

 segmeutis posticis tuberculo elevato longitudinali ad mar- 

 ginem posticum ; oviductu elongato, contracto ; pedibus 

 spinosis. 



Long. corp. foem. adult, unc. 4; cap.lin. 4; proth.lin.3^; 

 mesoth. lin. 8 ; metath. hn. 6 ; abdom. lin. 16 + lin. fii-f 

 lob. apic. lin. 3=lin. 25-^. 



Phasma (Acanthoderus) Bufo, Westwood, Cab. Orient. Ent. 



p. 77. pi. 38. f. 3. 



Hah. In Insulis Philippinensibus (Z). Cuming). Mus. 

 Westwood. B.M. 



I am induced to consider the insect represented in PI. II. 

 f. 6 as a half-grown female rather than a full-grown male of 

 this species. Like the fully-developed female (of which the 

 figure in my ' Oriental Entomology ' gives a representation), 

 the specimen has the exserted style at the extremity of the 



body resembling a tenth joint ; but the operculum does not 

 extend beyond the extremity of the ninth joint, leaving ex- 

 posed at the sides the inner ajjpendages of the organs of 

 generation. The opercuhun also is not 3-jointed as in the 

 males, although it exhibits two transverse impressions. 

 The specimen is from the Philippine Islands, and is m the 

 British Museum Collection. 



Plate II. Fig. 6. The insect, of the natural size. 6 a. The 

 bead, pro-, meso-, and anterior part of the metathorax seen 

 sideways. 6 b. The terminal segments of the abdomen 

 seen sideways. 6 c. The same seen from beneath. 



13. (141.) Acanthodenis Mesoplatiis, TTestw. 



Apterus, fuscus, granulosus et spinosus ; mesothorace 

 postice cum metathorace dilatato ; capita postice spinis S, 

 lateralibus majoribus ; prothorace sjjinis 2, mesothorace 8, 

 2 anticis, 2 ante medium, 4 posticis (2 lateralibus) ; meta- 

 thorace spinis 2 magnis pone medium lateribusque ante 

 pedes posticos spinosis ; segmentis basalibus Abdominis 

 6-spinosis, spinis 2 anticis majoribus ; segmentis posticis 

 sensim dilatatis, tuberculo longitudinali ad marginem posti- 

 cum instructis ; pedibus spinosis (mas). 



Long. corp. maris unc. 2g- ; cap. lin. 2 ; proth. lin. 2 ; 

 mesoth. lin. G ; metath. lin. 4 ; abdom. lin. 9 + lin. 3| = 

 lin. 12i. 



Phasma (Acanthoderus) ^lesoplatuni, TTestiv. Cab. Orient. 

 Ent. p. 77. pi. 38. f. 4. 

 Hub. In Insulis Philijipinensibus (D. Cuming). B.M. 



14. (142.) Acanthoderus draconinus, TT'estw. 



Apterus, fuscus, spinis magnis lateralibus horridus ; cor- 

 pore in medio parum dilatato ; capite supra postice spinis 

 circiter 10 armato, lateralibus majoribus ; prothorace supra 

 utrinque t\iberculo piano elevato spinoso armato, meso- 

 thorace etiam supra versus marginem anticum, utrinque 

 tuberculo lato spinoso et dentato, postice convergenti, ar- 

 mato ; prope marginem posticum etiam tuberculo minori 

 e spiuis duabus coujunctis armato ; tuberculo simih in 

 medio metathoraeis ; segmentis Ijasalibus abdominis utrin- 

 que spina porrecta medioque unica minori armatis ; seg- 

 mentis posticis sensim angustioribus, analibus tuberculatis ; 

 pedibus spinosis. 



Long. corp. maris unc. li ; foem. 2A ; luijus cap. lin. 21 ; 

 anten. lin. 9 ; proth. liu. 2 ; mesoth. lin. 4J ; metath. lin. 4 ; 

 abdom. lin. 9-1- lin. .3 = lin. 14. 



Phasma (Pachymor|3ha) draconinum, Westw. Cab. Orient. 



Ent. p. 78. "pi. 'iS. f. 5. 



Hab. In Insulis Philippinensibus (D. Cuming). Mus. 

 Westwood. B.M. 



H 2 



