ACARI FEOM NEW ZEALAND. 



141 



posterior margin by a little more than the length of their tarsi only. The 

 femora and tarsi are the longest joints, each about as long as the two inter- 

 mediate joints. The femora, genuals, and tibiae are broad and flattened ; the 

 femora of the two anterior pairs of legs have irregular, rough, narrow blades 

 on their inner edges ; those of the third and fourth pairs are without blades 

 and have a flattened surface fitting against the side of the abdomen but are 

 rounded exteriorly. All the femora are finely and irregularly reticulated in 

 parts, particularly on the under side. The genuals of the same legs have rough 

 blades on their inner edges. The tarsi are not flattened, and are much narrower 

 than the other joints; the coxse of the first and second legs are wholly sunk in the 

 body, those of the third and fourth legs are conspicuous, and are approximately 

 like a quarter of a globe in form, but are rough ; like the femora of all the 

 legs, they are inserted by comparatively narrow short peduncles turned at an 

 angle to the joint itself. Claws large and monodactyle. The legs bear a 

 number of large and small, semi-transparent leaf -like hairs or scales on their 

 €dges, viz., two on the outer edge of each femur and one on the inner edge 

 of each of those of the first two pairs, one on the outer edge of each genual 

 and tibia except ithe first pair. There are fine hairs on the tarsi and the 

 usual tactile hair on each tibia of the first two pairs, and a few other fine and 

 filamentous hairs. 



The second leg, on each side, is inserted into the posterior part of a chitinous 

 lateral projection of the cephalothorax which is bi-dentate on its anterior edge ; 

 the third into an indistinct flattened projection, and the fourth into the posterior 

 edge of a large chitinous projection from the side of the abdomen ; this pro- 

 jection has a rounded indentation in the centre of its outward edge, into which 

 indentation the inner posterior corner of the coxa of the third leg falls. 



Abdomen oval, rounded both on its anterior and posterior margins and con- 

 siderably arched on the notogaster ; which does not bear any markings, but 

 there are on it, in my specimen, five pairs of minute dots from which very 

 small hairs, probably leaf -like, have apparently fallen ; I am also inclined to 

 think there has been a pair of small leaf-like hairs on the anterior margin. 

 From the central portion of the hind margin of the abdomen springs a broad, 

 but very shallow, chitinous projection which bears three small, transparent, 

 fan-shaped scales, or hairs, close together, they project over the posterior 

 margin ; there is also another pair of these hairs or scales on the notogaster 

 itself overhanging the outer scales of the three above described. 



Ventral surface without markings ; mouth-opening small and contracted 

 by the pinching inward of the hood of the rostrum ; maxillary lip pointed 

 anteriorly. Sternum present but rather vague in outline, it being difficult to 

 say where it ceases. The epimera of the first and second legs are joined to the 

 sternum, those of the third and fourth legs are joined to one another by a 

 cross-piece, and to those of the second and the end of the sternum by another 

 cross-piece. There is a vague, elevated, transverse ridge almost entirely 



