Bd. V: II) THE ACARI. IS 



square, the postero-lateral angles rounded. Only one pair of hairs, directed towards 

 the middle and situated near the sides, far back. 



The ventri-a7ial shield very large covering the whole belly, except for a rather 

 narrow band along the lateral margins; greatest width near the anterior angles; the 

 anterior margin slightly concave, the antero-lateral angles rounded; the sides slightly 

 convex, gradually falling off towards the rounded hind end. The hind margin of 

 the ventri-anal shield not contiguous with the hind margin of the body; 5 pairs of 

 hairs, of which two are situated near the front margin, two near the sides, and one 

 pair on both sides of the anal aperture; one median hair behind the anal aperture. 

 . The anal aperture situated near the hind margin of the ventri-anal shield. 



Pedal shields well developed outside the coxœ; pedal shields II and III fused 

 together one with another, but distinctly demarcated from the narrow peritreniatic 

 shields, which are fused with the small nietapodial shields at their hind end. 



The legs. Legs 11 not thickened. 



Epistoma and hypostoma shaped like those of the male. 



The mandibles (PI. 11, fig. 21) a little narrower than in the male; the lower jaw 

 a little shorter and more curved than the upper one, beside the terminal tooth with 

 three short, sharp teeth placed at regular intervals; the upper jaw with two small 

 teeth, of which one is directed outward, opposite the terminal tooth of the lower 

 jaw, three teeth opposite one to another of those of the lower jaw and behind the 

 last one a high, knife-shaped blade; between the first of them and the subterminal 

 ones are two very small teeth and the sense hair. 



Locality: No. 5. Several (S^ and Ç. 



6. Laelaps (Eulaelaps) grahamensis nov. spec. 



iPl. II, fig. 5. I'l. in. fig. 8. Text-figs 26—29.) 



Length 0,64s mm. Breadth 0,4 mm. 



Shape oval, posteriorly rounded, anteriorly with short, median blunt projection. 



Colour^ light yellow. " 



The dorsal side (PL III, fig. 8) covered by a single shield clothed with regularly 

 placed hairs of which those situated in the anterior ','3 are much longer than the 

 others, and gradually diminish in length further back. 



The epistoma (Text-fig. 27) semicircular, with long, triangular projection with 

 smooth edges, near the top with a pair of small teeth. 



Ventral side (Text-fig. 26). 



Tritosternum of usual shape. Hypostomatic hairs delineated in Text-fig. 28. 

 The maxillary lobes very thin and hyalin, rather long. 



