368 ENTOMOLOGICAL NEWS. [Oct., 'l6 



Through the kindness of Mr. James Waterston, of the Im- 

 perial Bureau of Entomology of Great Britain, it has been 

 possible to compare the new species with specimens of Echi- 

 nophthirius horridus (Olfers) (= E. phocae Lucas) taken 

 from Phoca vitulina, a common seal of the Atlantic. The 

 new species is very distinct, differing not only in its notably 

 smaller size but in many structural characters as well. The 

 extremely long spines on the temples, the slenderness of all 

 the spines as contrasted with the short, blunt spines of . hor- 

 ridus and the extremely small, sharp claws of the anterior legs 

 serve to distinguish the new species immediately. It is in 

 fact so different that it will probably eventually be placed in 

 another genus. 



Types, a mature male and a mature female, in the Stanford 

 University collection. A paratype, a mature male, in the pos- 

 session of Mr. James Waterston of the Imperial Bureau of 

 Entomology of Great Britain. 



9. Length (cleared specimen), 2.4 mm. Body weakly chitinized 

 throughout. 



Head slightly more than half as wide as long, the anterior margin 

 quite convex, the temples very prominent and sharp, the temporal mar- 

 gins converging rapidly to form the prolonged occiput. Antennae 

 four-segmented, entirely destitute of spines except for very small 

 spines at the distal end of each segment. The chaetotaxy of the head 

 is entirely too complicated to describe in detail and only the more 

 prominent details can be noted. Each temporal margin bears a pair 

 of long stout spines which extend back to the middle of the thorax. 

 The remaining spines are small and slender except for a transverse 

 row, both dorsally and ventrally, near the posterior margin, which are 

 much larger and stouter. 



Thorax slightly longer than the head and but little wider, the lateral 

 margins straight and nearly parallel. Along each lateral margin is a 

 narrow chitinized area, which enlarges at the anterior lateral angles. 

 From this enlargement a narrow bar extends diagonally a short dis- 

 tance toward the meson. A narrow, backwardly bent, transverse bar 

 marks the dividing line between the meso- and metathorax. Meso- 

 thorax beset with numerous small, slender spines and with two or three 

 conspicuously larger spines at each posterior lateral angle. Meta- 

 thorax with a cluster of three or four small spines and two or three 

 larger ones at each posterior lateral angle. Ventrally the thorax is be- 

 set with numerous small spines. 



