1884.] J. Wood-Mason— 0/t the Genus Pliyllothelys. 209 



The cerci are of the ordinary slender conical form and do not reach so 

 far as the end of the ovipositor. 



$ . Sjnaller and slenderer with the cephalic horn and its crests, 

 as has been already stated, reduced to a rudimentary condition and 

 all folded or shrivelled up together so as to form a soft and flexible 

 projection no more than about a millimetre in length. 



Oi'gans of flight almost wholly membranous and hyaline. Tegmina 

 with the marginal field semiopaque brown resolved into spots at the 

 apex, with a few scattered groups of areolets in the discoidal area 

 and the meshes of the anal gusset faintly smoky, and with some dark 

 brown linear dashes on the longitudinal veins. Wings with their 

 anterior margin pale brown spotted at the apex, the rest of these organs 

 being very faintly iridescent-smoky, with obsolete double hyaline edgings 

 to the transverse violets, from the base nearly to the outer margin, 

 along which the smokiness and the longitudinal veins are alike darker, 

 especially in the anterior area. 



In the Tenasserim specimen of this sex the cephalic protuberance 

 is more broadly rounded at the top and less produced, and the horn 

 is more rudimentary ( ? in consequence of the specimen being a dried 

 one), but there is no other apparent difference between it and the spirit- 

 specimen from Assam described above, except perhaps in the tint 

 (exaggerated in fig. 1) of the wings, which is slightly deeper in the 

 latter. 



Total length, ? 51, $ 40 ; height of head, from free margin of 

 labrum to apex of horn, 2 14, $ 4*5, breadth of head between che eyes, 

 9 4' 5, $ 3" 75, length of horn, from a straight line drawn tangentially 

 to the upper surface of the eyes, ? 10, $ 1"5 ; length of antennae, 9 

 22, $ 22 ; length of pronotum, 9 22, $ 14*5, of its anterior lobe, 9 5, 

 S 3'3, of its posterior lobe, ? 17, $ 11*2, breadth of pronotum at supra- 

 coxal dilatation, 2 3'5, $ 2' 75 ; length of fore-coxa ? 13, $ 9, femur, 

 2 14-5, c? 10, tibia, ? 8, c? 5*5, intermediate femur, 2 5*5, $ 4-5, tibia, 

 9 5, c? 4, posterior femur 2 7-5, $ 6, tibia 9 7, ^ 5-5 ; length of teg- 

 mina 9 27, d 27, breadth across middle 2 6'5, $ 6 millims. 



Hab. — 2 2 and L ? nymph, Sibsagar, Assam {8. E. Peal), 1 (J, 

 Buxa, Bhutan (Dr. Lewis Cameron), and 1 cT Moolai, Upper Tenasserim 

 (Mufi Raiii) in Indian Museum, Calcutta. A fine female is preserved 

 in the British (Natural History) Museum, South Kengsington, London. 



2. Phyllothelys paradoxum, n. sp., PI. XII, Fig. 3. 



cf nymph. Nearly allied to the preceding, which it closely resem- 

 bles in the relative proportions of its parts and in every detail of colour 

 and ornamentation, but from the same sex of which it differs in tlie 

 possession of a fully develo^jed cephalic horn and from the opposite sex 



