370 



Transactions . 



Fig. 5. 

 Philopterus wattacei. 



Fig. 6. 



I'hilopterus wallact I. 

 Ventral. 



against 0-65 mm., so that, besides being slightly longer, it is proportionately 

 much, broader. Head measurements are 0-76 mm. by 0-72 mm., as against 

 0-60 mm. by 0-53 mm. Antennal bands are produced inwards further, 



and end in a rounded posterior 

 prolongation. The narrow bands 

 on the hind margins of the first 

 six terga are more distinct than 

 those indicated in Kellogg's figure 

 of P. fuliginous, and, moreover, 

 are only very narrowly inter- 

 rupted medianly. The lateral 

 blotches on the final segment 

 of the abdomen are not so pro- 

 nounced, nor is the abdomen so 

 distinctly turbinated. There are 

 also a few minor differences in 

 the number and arrangement of 

 hairs 



We have figured the disposi- 

 tion of the chitinous markings 

 on the ventral surface of the 

 abdomen, as well as the genital 

 apparatus, which is extraordi- 

 narily large and complex, and continues through six abodminal segments, 

 as in P. fulkjinosus. 



One male from Charadrius dominicus Mull. We have named the 

 species in compliment to Mr. W. L. Wallace, to whom its discovery is due. 



Philopterus armatus n. sp. 



Females of two species of the genus PhilojAerus were taken from 

 Numenius variegatus Scop., both of the fuliginosus type, and closely allied 

 to one another. They are easily distinguishable, however, the present 

 species being larger, and having the head broader in proportion (as well as 

 different in the disposition of markings), than the next described species. 

 Two males were also collected which we take to belong to this species. 



Description of Female. — Head a seventh broader than long, truncate, 

 with obtusely rounded anterior angles, concave sides to the trabeculae, 

 and much swollen temporal lobes ; hind margin sinuous, with central 

 rounded projection on to prothorax ; clear brown, with the strong 

 mandibles, antennal bands, and acuminate point of signature much 

 darker. Clypeus with narrow lateral bands, clear anterior margin, dis- 

 tinct suture, and an evenly chitinized signature, parallel to the anterior 

 and lateral margins, with semicircular posterior margin, and strongly 

 projecting posterior acuminate joint, rising from just inside hind margin. 

 Antennal bands strong, ending in a rounded enlargement at the antennary 

 fossa ; internal to antennal bands, 2 strong bent bands rise from the arti- 

 culating process for the mandibles, curving strongly to pass round the 

 anterior ends of the antennal bands, thence running straight to the anterior 

 ends of the clypeal bands, just posterior to the clypeal angles ; in the 

 curve of these bands, on either side, a strong chitinous blotch ; trabeculae 

 light in colour, reaching to the middle of 2nd segment of antenna ; antennae 

 light, with short stout 1st joint, 2nd longest, 3rd and 5th equal and shorter. 

 4th shorter still ; eye fairly prominent, clear outwardly, with a pigment 



