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XVII. Description of the female of Chiastopsylla godfreyi 

 Water St., with further notes on the Genus. By 

 James Waterston, B.D., B.Sc. 



(Published by permission of the Trustees of the British 

 Museum.) 



[Read December 1st, 1920.] 



Since my original notice of the male of this species appeared 

 (Proc. Roy.-Phys. Soc. Edin., Vol. XIX, No. 1, pp. 8-11, 

 tig. 1, 15 : iii : 1913) no further records of its occurrence 

 appear to have been made, and the female is still unde- 

 scribed. Among some parasites of small mammals from 

 Grahamstown submitted to me in the beginning of 1915 

 and subsequently put aside, there are two females of this 

 genus which, from their association with the known male 

 of C. godfreyi and from their general characters, are probably 

 referable to this species. As Mr. Rothschild, to whom I 

 am indebted for examining some preparations, agrees in 

 this opinion I have drawn up the following notes. 



Chiastopsylla godfreyi Waterst. 



?. Head evenly rounded. Frontal notch obsolete, one moderate 

 bristle at the edge of the eye anteriorly, two long and stout above 

 the genal edge with a third finer and shorter above the more anterior 

 of the two. Five to six short fine hairs along the upper edge of the 

 antennal groove with three stouter bristles in a line above. Transverse 

 row of seven to eight fine bristles before the posterior edge. Max. 

 palpus 6, 6, 5, 7. Thorax similar to C. rossi Waterst. Mesonotum, 

 median row of bristles 9-10. Metanotum, antemedian row of seven to 

 eight bristles. Epimeron with five bristles (2, 3). The posterior edges 

 of the metanotum and of the abdominal tergites are thin and no- 

 where develop the darkened triangular chitinous teeth found in 

 C. rossi Waterst., and C. numae Rothsch. 



The chaetotaxy of the abdominal sclerites is as follows : — 



TRANS. ENT. SOC. LOND. 1920. — PARTS III, IV, V, (mAR.'21) 



