82 



A^T^ALS OF THE TrAXSVAAL MuSEU^^I. 



relatively large border (0.3 mm.) formed of irregular radiating 

 wrinkles. On tlie dorsal surface numerous sliiny pits, forming 

 radiating lines in tlie posterior third of the surface, at the anterior 

 quarter of the length two large oval pits close to the median line, 

 about them an interrupted circle of small pits, outside this circle 

 in nearly all of the anterior quarter, up to the margin, numerous, 

 unequal irregular pits, mostly small and continued behind by two 

 or three rows within the margin. Ventral surface a little concave, 

 with shiny pits not very apparent ; anus about the middle of the 

 length, opposite the stigmatic plates, which are scarcely its diameter; 

 sexual orifice very small, opposite the posterior extremity of coxae I. 

 Rostriiin very small (0.5 mm.), very near the anterior edge, and 

 removed from coxae I; its base longer (0.5 mm.) than wide, lodged 

 in a cavity; hypostome narrow; palpi short. Lefjs short; lines of the 

 coxae distant from each other, enclosing between them about one- 

 third of the width ; coxae I distant- from coxae II ; tarsi I with a very 

 large prominence near their extremity, the others terminating in a 

 feather edge, with the dorsal, sub-terminal prominence almost 

 obsolete. - 



//r>».sf.s\— Probably fowls and birds. 



Hnhifai. — South Africa (probably north of the Orange River); 

 Basutoland. 



I have never seen specimens of this species, and the description 

 is, therefore, taken from that of Neuhiann. Professor* Neumann nas 

 recently noted that his A. Loclil difl'ers slightly from A. fransf/arir- 

 Ijitius, in having the prominences on all of the tarsi, instead of 

 only on tarsi I, as in trdnsf/fn-iepini/s, although not quite as prominent 

 as on tarsi I, of this latter species. If this proves to hold true for 

 both sexes, A. locJii will ]:)ecome a variety and not a synonym of 

 A . trdusfjarlcpi )} us . 



GENF8 OPNITHODOROS, KOCH. 



Ornifliodoros, Koch (1844). 



Oriufliodoros, Koch (Neumann, 1896). 



Bod)j sometimes oval; generally with lateral margins straight 

 and parellel, or almost so, sometimes concave ; prolonged in front in 

 an angle more or less marked from the point of insertion of the second 

 pair of legs; rounded on the posterior margin. Hood recurved on 

 the ventral surface, where it is hollowed out in a pit for the insertion 

 of the rostrum with thick edges. Edge of the body thick, with the 

 two surfaces not differentiated. Integument with prominent hemis- 

 pherical papillae arranged in various designs ; the dorsal surface bears 

 various depressions ; on the ventral surface folds and grooves con- 

 stant ; two longitudinal folds known as co.v(d folds, similar, prominent, 

 situated opposite the inner extremities of the coxae, and disappearing 

 behind the last pair of coxae ; two similar longitudinal folds, known 

 as suh-co.vcd folds, situated above and outside of the coxae; a 

 transverse pre-anal groove; another transverse post-anal groove; a 

 longitudinal groove known as anal groove extending from the anus 

 to the post-anal groove; eyes sometimes present. 



