On new Species of Pselliophora. 373 
distance between the condyle and the base of the upper 
incisor, while in mellandi it is still shorter, equal to no more 
than the distance between the condyle and the posterior edge 
of the postdental palate. Hinder edges of anterior palatal 
foramina distinctly in advance of tooth-rows, the latter being 
parallel to each other, b/ained in both respects resembling 
ansorget. In mellandi the tooth-rows are divergent ante- 
riorly, while in meehow? they are divergent posteriorly. 
Cheek-teeth remarkable only for their large size, the ante- 
rior three above occupying as great a length as the whole 
tooth-row in other species of the group. 
Skull-measurements in millimetres. 
mechowtr, | anson get. 
| 
blainet, ' 
type. gr 5 MOH, of u's 59 
130 | 126 3 74 
P. 3: 
Condylo-basal length .......... 64:3 52 53°5 54:7 58 
Occipito-nasal length .......... 579 48 47°7 a 53°7 
Zygomatic breadth ..........-. 479 38:1 39'5 38'8 43°4 
Gecipital width yy. ecko o4 sisi 29°5 25°8 25 25'8 27°5 
» depth (median) ...... 18°4 16 16:2 a 18 
Cantyie toa... 2 oR TS. 25°7 21 21°7 22°4 22'5 
imastomay)): 9. dad ienhawics ».. 21:3 17:8 17'8 17°53 216 
Cheek-teeth (alveolar).......... 12-4 9 9°5 9°8 9°3 
a (at grinding surface),| 10°6 85 9 9 84+ 
Dimensions of type (measured in the flesh) :— 
Head and body 251 mm.; tail 27; hind foot 51. 
Type. Adult male. B.M. no, 20.4.27.1. Original num- 
ber 2. Collected at Chisongwe, Luando River (altitude 
4000’), Nov. 14, 1919, and presented to the British Museum 
by Mr. Gilbert Blaine. 
Hab. Central Angola. 
XLITI.— Seven new Species of Pselliophora (Diptera, 
Tipulide). By F. W. Epwarps. 
(Published by permission of the Trustees of the British Museum.) 
THE types of the species described below are in the British 
Museum, except that of P. reversa, which is in the Oxford 
Museum. 
