PHASMIDiE. PHIBALOSOMA. 



75 



anal styles short ; the terminal ventral segments short and 

 much swollen. 



The female has the body smooth, but much thicker than 

 that of the male. The head is very convex behind, but 

 without the two tubercles. The mesothorax widened gra- 

 dually. The metathorax is one-third shorter than the 

 mesothorax ; it has a minute tubercle in the middle. The 

 abdomen is long and thick ; the sixth segment is lobed on 

 each side ; the seventh longer than the sixth ; the eighth 

 and ninth short, the latter emarginate — truncate at its ex- 

 tremity ; anal styles short and deflexed. The operculum 

 does not quite extend to the extremity of the body. The 

 legs in both sexes are strongly serrated along their different 

 angles, those of the male being longer and more slender ; the 

 basal joint of all the tarsi is compressed along its upper edge. 



Plate XXXVII. Fig. 1. The male, of the natural size. 1 a. 

 The head seen sideways. 1 b. The terminal segments of 

 the body seen sideways. 



Plate XXXVIII. Fig. 1. The female, of the natural size. 

 1 a. The head. 1 b. The terminal segments of the abdo- 

 men seen sideways. 



This fine and distinct species is named after Dr. Theodore 

 Cantor, an accomplished naturalist, by whom it was collected. 



7. (192.) Phibalosoma serratipes. 



Fusco-cinereum ; tegminibus areaque costali cinereis, 

 margine anteriori flavescenti-albo, interne nigro-margi- 

 natis ; alis cinereis ; pedibus anticis femoribus serratis, 

 posticis dentatis, denticulis nonnullis majoribus tibiarum 

 4 posticarum (mas). 



Long. corp. uuc. 6, lin. 10£ ; cap. lin. 3 ; anten. unc. 4 ; 

 proth. lin. 2 ; mesoth. lin. 19; metath. lin. 12 ; abdom. 

 unc. 3 + lin. 9? = unc. 3, lin. 9£ ; tegm. lin. 5 ; alar, ex- 

 pans, unc. 3i. 



Cladoxerus serratipes, G. R. Gray, Spi. Phasm. p. 42. 



Hab. Pulo Penang (JVestermann) ; Borneo {Wallace) ; 

 Malabaria. B.M., &c. 



The type of this species is preserved in the British 

 Museum Collection. A male specimen, three-fourths of an 

 inch shorter, was captured by Mr. Wallace in Borneo. 



The body is extremely slender ; the abdominal segments 

 are slightly dilated at each end ; the seventh is much dilated 

 and conical, the eighth shorter and obconic, the ninth nearly 

 as long as the two preceding united, slender and bifid, with 

 the base swollen above ; the anal styles deflexed, and arising 

 in the middle of the last segment ; the three terminal ven- 

 tral segments swollen, and not extending beyond the middle 

 of the eighth dorsal segment. 



8. (193.) Phibalosoma Hypharpax, Westw. 

 Plate XIII. fig. 6, male. 



Gracile, cylindricum, inerme ; abdomine longissimo, ar- 

 ticulo apicali longe bifido ; tegminibus parvis, alte carinatis ; 

 alis pallide fuscis, costa obscuriori ; antennis pallide luteis ; 

 pedibus elongatis, serratis (mas). 



Long. corp. unc. 4$ ; cap. lin. 2\ ; proth. lin. 2 ; me- 

 soth. lin. 10.; metath. lin. 8 ; abdom. lin. 26 + lin. 8 = 

 lin. 34 ; tegm. lin. 4 ; alse, lin. 23 ; alar, expans. unc. 4. 



Hab. In Ceylon. B.M. 



A unique male of this species forms part of the National 

 Collection. It is remarkable for the great length of the 

 abdomen, spinose legs, and especially the structure of the 

 terminal segments of the abdomen. It is slender and cylin- 

 drical, the body being destitute of spines. The head rather 

 large, oval, and subdepressed, nearly smooth, with a pale 

 patch in front, and another on each side behind the antennae 

 pale yellow. The antennas have the extremity broken off 

 at about 1| inch from the base ; the joints remaining are 

 long and finely hairy. The mesothorax is slender and 

 cylindrical. The tegmina are small and narrow, with a 

 strong carina elevated considerably in the middle. The 

 wings are moderately large, but not wide ; they are pale 

 brown, with the costal area rather darker brown ; the chief 

 vein is furcate at a short distance from the base. The ab- 

 domen is very long and filiform ; the seventh dorsal seg- 

 ment gradually widened, the eighth gradually narrowed, 

 the ninth elongated and deeply bifid, the two divisions 

 gaping considerably and denticulated on their inner surface, 

 with the two anal styles inserted on the under surface, and 

 not so long as the divisions of this terminal segment ; the 

 three terminal ventral segments are abbreviated, not ex- 

 tending to the extremity of the eighth dorsal segment. The 

 legs, especially the anterior pair, are elongated and rather 

 slender ; all the femora rather strongly serrated on all their 

 edges ; the tibiae less strongly serrated, the four posterior 

 with a more conspicuous spine on the outer edge towards 

 the base ; the basal joint of the tarsi rather flattened and 

 dilated. 



Plate XIII. Fig. 6. The male, of the natural size. 6 a. The 

 terminal segments of the abdomen seen laterally. 6 b. The 

 same seen from beneath. 



9. (194.) Phibalosoma Tirachus, Westw. 



Plate XXXVII. fig. 3, male. 



Gracillimum, lineare, cylindricum, fusco-brunneum; capite 



oblongo, margine postico abrupte declivi ; mesonoto tereti ; 



tegminibus elongato-ovalibus, ante medium constrictis ; 



l 2 



