EEIANTIIUS. 



87 



11 (12) Tegmina brown, with or without 



whitish spots deforatus, Brunn., p. 89. 



12 (11) Tegmina pale. [p. 90. 



13 (14) Tegmina hyaline, unspotted hmnbertiamis, Sauss., 



14 (13) Tegmina spotted. 



15 (16) Tegmina with two hyaline spots .... /lavipes, Sauss., p. 90. 



16 (15) Tegmina with one hyaline spot .... birmanicus, Sauss., p. 90. 



94. Erianthus affinis, Westtv. 



Masta.v affinis, Westwood, Arcana Ent. ii, 1843, p. 54, note._ 

 Erianthus acuticarinatws , Brunner, Ann. Mus. Geneva, xxxiii, 1893, 



p. 117, pi. V, fig. 48; Saussure, Rev. Suisse Zool. xi, 1903, 



pp. 78, 80, pi. iii, fig. 11. 



Brown, inclining to rufous, rastigium of the vertex erect, 

 very broad, and more or less bifid at the extremity. Pronotum 



rugose, -with a high irregular 

 median carina. Tegmina 

 with ferruginous network, the 

 sjiaces between subhyaline, 

 especially above the prin- 

 cipal nervure, and an oblique 

 wliitish stripe at about four- 

 fifths of the inner margin, 

 running towards the tip. 

 AVings fulvo - hyaline, with 

 ferruginous uervures, and a 

 narrow brown hind margin. 

 Abdomen ferruginous brown, 

 especially at tlie extremity. 

 The upper appendages of the 

 female are finely serrated, not 

 coarsely and irregularly, as in 

 Saussure's figure, and the lower appendages have three small 

 teeth before the extremity. The male has a small white spot 

 towards the apex of the tegmina. Eemora blackish, strongly 

 compressed and laminate-carinate above and below ; hind femora 

 with three white bands, and the upper carina terminating in a 

 sharp triangular tooth. 



Length 25-32 mm. ; exp. of tegmina, 35-48 mm. 

 Assam : Sylhet ; Burma : Teinzo. 



Tiij)e in the Oxford Museum ; that of acxiticurinatus in the 

 Genoa Museum. 



Fig. 75. — Erianihus offinis. 



95. Erianthus bifidus, sp. nov. 



Dark brown, with the carina) of the face pale, and the legs 

 with rather indistinct pale spots. Vertex almost perpendicularly 

 raised between the eyes, and slightly notched at the extremity ; 



