1924 ] Systematic Position of the Family Termitaphididce 275 
provisionally to T. guiance. The male has twelve marginal 
lobes on each side, while five of the females have thirteen and the 
sixth shows fourteen. These seem all conspecific in spite of the 
divergence in the number of lobes. In this connection reasons 
have been adduced above for rejecting this character as specific 
among thirteen — and fourteen-lobed forms. Unfortunately the 
flabella are almost entirely lacking in the seven specimens, 
but the few that remain (fig. 13.) are identical in shape with 
those figures by Morrison in T. guiance. Moreover the number 
of lobules in the respective lobes corresponds very closely with 
that in T. guiance, the chief differences being as follows: 
Number of lobules 
T. guiance 
Colombian 
material 
2nd lobe of mesothorax 
4 
5-6 
2nd abdominal lobe 
6 
7 
5th abdominal lobe 
6 
7 
The variation in the considerable series of T. panamensis 
examined supports the suggestion that these differences come 
well within the range of intraspecific variability. In any case 
they seem an insufficient basis for specific rank. 
In conclusion the writer would express his deep indebtedness 
to Professor W. M. Wheeler, Professor C. T. Brues and Mr. 
Nathan Banks for references to and loan of literature and for 
much helpful advice; and to Mr. Harold Morrison not only for 
turning over the task of describing his new species but also for 
much time, and patient work in demonstrating the interpretation 
of the segmentation. 
Literature Cited. 
CRAMPTON, G. C. 1923, Preliminary note on the termi- 
nology applied to the parts of an insect’s leg. Canad. 
Entom. vol. 55, no. 6, pp. 126-132, PI. 3. 
