102 Records of the Indian Museum. [Vol. IV, 



scales. Prothoracic lobes with or without a few scales irregularly 

 disposed, but always without a definite bunch or tuft of scales. Head 

 with the usual type of upright forked scales. 



The characters of this genus are shown in Plate xi. I place 

 the following species in it — 



indica, Theobald. 



stephensi, Liston. 



wiUmori, James. 



intermedia , Theobald.* (This perhaps = stephensi.) 



dudgeonii, Theobald.* (This perhaps = willmori.) 



Lastly, I have to consider the arrangement of the species in 

 which some of the abdominal scales are disposed so as to form 

 distinct bunches or tufts projecting from the dorso-lateral or from 

 the ventral surface of certain segments. These tufts form con- 

 spicuous objects readily seen with a hand-lens, and their presence 

 supplies an easy means of separating the following groups from 

 any of those described above. The Indian species provided with 

 certain of these abdominal tufts of scales are (i) pulcherrima, 

 Theobald ; (2) sinensis. Wiedmann (= vanus, Walker); (3) nigerri- 

 mus, James and Liston (which probably = sr«e»s/s, Wiedmann, and 

 vanus, Walker); (4) nigerrimus, Giles; (5) barbirostris, Van der 

 Wulp; (6) halli, James; and they must be arranged in three quite 

 distinct groups, the names of which are (i) Cellia, Theobald; (2) 

 Myzorhynchus, Blanchard ; and (3) Christophersia, nov. gen. 



The following are my definitions of these groups : — 

 Genus 8. CELLIA, Theobald. Abdomen with the dorsum of 

 each segment clothed with very large and broad orbicular and square- 

 ended scales which stand out somewhat from the surface and overlap 

 one another. In addition at the postero-lateral corner of each segment 

 from the 1st to the yth is inserted a bunch of large scales forming a 

 tuft which projects laterally. Six tufts on each side are plainly 

 visible with a weak lens. The ventral surface of each segment is 

 clothed more or less evenly with very broad scales like those of the 

 dorsum, but the clothing is not so thick as on that surface. The 

 postero-lateral tufts of the dorsal surface are visible on each side, but 

 there are no ventral tufts of scales projecting downwards. Thorax 

 clothed with very broad scales. Prothoracic lobes imth a few scales 

 projecting forwards. 



Type species of the genus, pulcherrima, Theobald. The 

 generic characters are shown in Plate xi. 



Genus 9. MYZORHYNCHUS, Blanchard. Abdomen with the 

 dorsal surface clothed idth hairs only. On the ventral surface from 

 the apex of the seventh segment in the middle line a prominent bunch 

 or tuft of rather long, black, true scales projects downwards. On the 

 ventral surface of the 6th, ^th, ^th and ^rd segments a few small white 

 scales may be present; if so, they are arranged somewhat irregularly 



