( aso ) 



(ti/ii')iryx Guuui'e. in V'liis.. \'"i/. Mti'iaij. |f. ijU (lHii;"() {iitm. h'uL). 



.(mhuhjj; Walker („n,i id., IHol".), /'/■«.•. X. 11. Snr. Gliisrjnd- i. p. 328 ( 1H|',;I). 



Tcmmiv. Biisduval („.,„ Walker, 185l;), f^pe,: Gen. Lip. Ilrl. i. p. -iH'.l (187,')). 



I':<eudusmciinlhiis Butler, Tidii-i. ZwjI. Sue. Lund. ix. p. o'J.'J ( 1877) (type : ni,iliui/<( =^s(ibinaiijiiiiiUx). 



Trlploguii id. (/»/« id., 1877), Chf. Eiil. ii. p. 393 (187'.)). 



Deviluii Holland, Tian^. Amei: Enl. Sue. xvi. p. 05 (188',1) (includes enn/nirin). 



I)(ioil-hi (!) id. Enl. News iv. p. 341 (1893). 



.Munnnba. Kirby («..« Moore, 188-.'), Cal. Lep. Ihl. i. ii. 708 (18'.rj). 



J?. Jdiiit of first and second palpal se,;;imnits luorc or less opeu. Tibiae all 

 spiuose ; two pairs of spurs to liiiidtibia : pnlvillus, parouychiiim, iVeuulniu and 

 retiuaunlum present. 



Closely allied to Clanig, disting-uisliable by the oi)en joirjt of the palpns, or a 

 very weak tongue, or a scalloped di.stal luaruin of the wing, or the absence of 

 spinules from the abdominal tergites (excepting edges). 



The thirtj'-two species here treated as l^oli/pfyclms represent without doubt 

 several genera. The characters given for the genera already proposed are, however, 

 not reliable. We have tried to separate geuerically the motley of forms according to 

 their structure, but found that it would be necessary to erect a genus for every two 

 or three species, which, we think, is quite inopportune at present. The division of 

 Poli/pti/c/ius iuto smaller genera must be left till the African Sphiugid fauna is 

 better explored ; for we believe that the number of undeseribed species coming 

 into this group of forms is very large. When a larger proportion of the existing 

 species is known, one will be better able to judge, how far one should go in dividing 

 uji the present genus Polijpti/chus. Of the names proposed, Pobj jitijchas will 

 eventually stand for the Indian forms {dcntatus, triUneatiM) ; Aiidriasri and I'scados- 

 mtfhithus are both based upon rontivria, the former on the S , the other on the ? ; 

 Decitzia was proposed ibr rontrarin and paupercula, and will therefore always 

 lemaiu a synonym of Aiidriuw. As yet only three names are available for the 

 genera into which Poli/pti/chus will ultimately be separated ; at least five more will 

 be needed — a tine o]i|>ortnnity of acijuiring immortality, jjrovided the scientists of 

 the distant future do not shake off our system of nomenclature by iu venting one 

 of their own. 



The tongue varies in the different sjieeiesTrom being strong and reaching to 

 the abdomen {urtliuy roping, etc.) to being nearly altogether obliterated (ijrai/i). 

 The joint of the palpns is not distinctly ojjen in frisecta and orthoijraphu.'s ; the 

 size of the palpns is variable according to species or groups of species. The 

 abdominal tergites are spiuose all over in some sjjecies, in others th'3 sjiines are 

 restricted to the edges. The spurs are very long in trUecta and allies, short iu 

 other species ; in some they are spiuose, iu others they are not. The clasper has 

 a patch of friction-scales, or has not. The distal margin of the forewiug is entire, 

 straight, convex, dentate, or scallojied ; the apex produced, or not. R- of the 

 hindwing varies in jjosition, and the cross-veins D- and D^ are sometimes very 

 obliijue, sometimes not. The anteiuiae are also not the same in structure in all 

 the species. 



The structural differences are nienti<jned below under the various species. We 

 liope that, by pointing out these ditlerences, we are not inducing anybody who has 

 MO knowledge of the insects themselves to seize upon these characters and be busy 

 jiroposiug generic names for the sjjecies. 



The larva is known only of on<' of the two Indian and of one African species ; 

 Jt has the triangular head and granulose skin after the type of Spluiu: occlUUa. 



