'•] Appendix. 899 



Gex. SAPECECIUS, p. 306. 

 I mention in the description of this genus, p. 307, line 10, that the 

 joints of the intermediate and posterior tarsi are fused and vary in 

 number from two to five. It is possil^le that in one of the species, 

 .S'. optatus, the number of these jomts as given by me is correct, for 

 they agree in the two examples that I examined ; ])ut in the other 

 species, S. singularis, one more example of which has lately reached 

 me, both the intermediate and posterior tarsi are five-jointed ; the 

 examples previously received were mutilated. 



Cathaestus pandion, Har., p. 336. 

 I referred, with some doubt, this species to C. melancJiolicus, Boh. 

 Although very closely allied, it may, however, be differentiated by the 

 length of the supra-marginal carina of the elytra, which reaches in 

 C. mclancholicus to only one-third of the whole length of that part of 

 the body, whereas in (\ pandion it is very sharp for three-fourths 

 of the length. The habitat seems, however, to be the same as that 

 of C. melancJiolicus, but I have also received it from Lourengo- 

 Marquez. 



Family HYBOSORIN^. 



Gen. ARiEOTANYPUS, Waterh., 



Ann. & Mcigaz. Nat. Hist., vol. xv., 4th ser., 1875, p. 404. 



"Mentuni quadrate, slightly rounded at the base, the anterior angles 

 obliquely truncate ; labium only slightly visible at the sides, on 

 account of the mentum being truncate. Labial palpi very stout ; 

 the penultimate joint small, as long as broad ; the apical joints large, 

 ovate, scarcely truncate at the apex. Lobes of the maxillae mem- 

 branous, thickly clothed with stiff hair. Maxillary palpi wdth the 

 apical joint four times as long as the preceding one, sub-fusiform, 

 with the apex slightly truncate. Labrum transverse. Mandibles 

 stout, much curved, with the apex acute ; these with the labrum 

 visible from above. Antennae composed of eleven joints ; the first 

 joint large, stout ; the second nearly globular ; the third nearly as 

 long as the first, but comparatively slender, sub-cylindrical ; the 

 fourth, fifth, and sixth shorter, the sixth obliquely truncate at the 

 apex ; the seventh transverse, narrowed at its base ; the eighth very 

 short, and almost confounded with the first joint of the club ; the 

 ninth, tenth, and eleventh joints forming a short, ovate club ; the 

 ninth, the largest, shining, and slightly embracing the tenth and 

 eleventh, which are spongy. Eyes large, not divided by a canthus. 

 Thorax transverse. Scutellum triangular. Elytra elongate, shghtly 

 rounded at the sides. Abdomen composed of six segments ; the 



