88 | HETEROCERA. 
_ ‘Type 8: Alucita marginella F. 
*Ypsororucs (F.) Z. Isis 1839 189-90 no. 15 sp. 1-16 [B. Yrsozorxus (F.) Z. Isis 1889 189-90 
sp. 5-14] (1839); HS. SB. Schm. Eur. 5 11 no. 63 (1853). Hypsozoravs HS. SB. Schm, 
Eur. 5 42 no. 63 Pf. 12° 23-7 (1853). Hypsoropua HS. SB. Schm. Eur. 5 158-5 no. 63. 
sp. 877-84 (1854), Syst. Lp. 54 no. 877 sp. 891-7 (1855). Ypsozorzus Stn. List Br. An. 
BM. 16 Lp. 88-9 no. 13 sp. 1-2 (1854): Ins. Br. Lp-Tin. 76, 145-6 no. 13 sp. 1-2 
Pf. 4° 108-¢ (1854). Hypsrroravs (inpiropos=with a high crest) Oxf-Camb. Ent. Soce. Acc. 
List Br. Lp. 89 (1858). Yesozoravs Hnmn. Schm. Deutsch. Tin. 337-40 no. 447 sp. 510-17 
(1870), Tb]. 6, 46-7 no. 447 (1876); Stgr-Wk. Cat. Lp. Eur. 301-2 no. 225 sp. 2184-42 
(1871); Snln. Vlind. Nederl. Micr. 431, 699-701, 1087 no. 57 sp. 1-2 Pf. 8°274, 9°278 
(1882); Meyr. HB. Br. Lp. 569, 607-9 ‘no. 18 sp. 1-8 (1895); Stgr-Rbl. Cat. Lp. Pal. 
2 159 no. 333 sp. 2950-9 (1901). Hyrsozorxvs Splr. Schm. Eur. 2 354-5 no. 12 sp. 1-8 
Pf. 88°48-9 (1910). Yrsozopzvs Chmb. Bull. US. GG. Surv. 4 166-7 (1878): Jr. Cin. 
Soc. NH. 2 198 tf. 202:16 (1880); Wlsm. Tr. Am. Ent. Soc. 10 185-8 (1882); Riley, 
Smith’s List Lp. Bor-Am. 103 sp. 5523-34 (1891) ; Busck Bull. US. Nat. Mus. 52 507-8 
sp. 5678-92 (1902): Pr. US. Nat. Mus. 25 772, 920-7, 938 Pf. 32°36 (1903); Krft. Smith’s 
Check List Lp. Bor-Am. 113 sp. 6358-72 (1903) ; Berg An. Soc. Ci. Argent. 19 282-3 
(1885); Wlsm. Pr. Z. Soc. Lond. 1891 525-7, 546 no. 50 sp. 91-4 (1892): 1897 86-7 no. 24 
sp. 73-8 (1897): Tr. Ent. Soc. Lond. 1881 265-7 Pf. 12° 35-6, 18-37 (1881): 1891 107-8 
Pf. 5°43-4 (1891): 1897 41 Pf. 3°13 (1897). Hyrsororpuvs Wism. Bull. Liverp. Muss, 
3 2-8 (1900): NH. Sokotra 845-6 Pf. 21-3-4 (1903): Ent. Mo. Mag. 89 264-5 (1903). 
Yrsororpuus Meyy. Pr. Lin. Soc. NSW. 29 258, 429-35 no. 54 sp. 263-73 (1904): Jr. Bomb. 
NH. Soc. 16 601 (1905) : 17 981-2 (1907): Rec. Ind. Mus. 5 223 (1910) : Ann. S-Afr. 
Mus. 5 871 (1909): Ann. Transv. Mus. 218 Pf. 6: 2 (1910). 
It has long been obvious that the present usage of the geneonyms “ Ypsolophus F. ” 
and ‘“ Cerostoma Ltr.” must be corrected (vide Pr. Z. Soc. Lond. 1897 86; etc.), 
but as it was recognised that a study of most of the generic terms involved would 
have to be undertaken for the purposes of this work the correction has been deferred 
until now. 
The chief difficulty has been occasioned by the different application of :—: 
YrsotopHa Ltr. Préc. Gen. Ins. 145 (1796) no types. 
Yrsotoruus F, Sppl. Ent. Syst. 421, 505-10 sp. 1-23 (1798). 
Crrostoma Ltr. Hist. Nat. Crust-Ins. 3 416 (1802). Type vittella L. (=dorsatus F., Ltr. Gn. 
Crust-Ins. 1 Pf. 16°6). 
Ypsolopha and Cerostoma appear both to have originated in Paris, and to have been 
applied to the same species PhaJaena Tinea vittella L. (=dorsella F., dorsatus F., Ltr.). 
Latreille [Gn. Crust-Ins. 4 233 (1809)] sunk both Ypsolophus F. and Cerostoma Ltr. 
as synonyms of § Alucita F. (1781), but *Alucita F. is invalid, being homonymous with 
Alucita L. (1758); and moreover when Fabricius published Ypsolophus, founded on 
species removed from *Alucita F., he left only five of its original exponents as possible 
