158 R. W. CROSSKEY 



instances there are no valid new binomina in use). When given in the body of the 

 catalogue the abbreviation Comb. n. is interpolated between the type information 

 and the geographical data, and each new taxonomically valid binomen is set out 

 formally in the summary of new combinations on p. 261. 



Miscellaneous annotations. Whenever it is necessary or desirable to call 

 attention to some specially pertinent point concerning a name or its type (e.g. 

 publication date, possible whereabouts of missing types, discrepancies between 

 type-data and published information) the additional annotation is given in a separate 

 paragraph immediately after the main entry. Cases of possible or probable, but 

 unconfirmed, synonymy are shown by an appropriate entry immediately following 

 the distribution data, e.g. '(Probably — fasciata)' . When it is necessary to cite 

 the International Commission on Zoological Nomenclature the abbreviation ICZN 

 has been used. 



Publication dates of Walker's Malay Archipelago species. It is necessary 

 to call special attention here to the publication dates of the Tachinidae that Walker 

 described in the Journal of the Proceedings of the Linnean Society, as the result 

 of Wallace's collecting in what is now Malaysia and Indonesia. The publication 

 dates have almost always in the past been cited as the year-dates shown on the 

 title pages of the volumes containing the descriptions, but in many instances parts 

 of the journal were actually issued in the year previous to that shown on the title 

 page. As a result many species should take the year-date that immediately precedes 

 the one normally quoted for them: for example, the nominal species described 

 from Singapore take the year-date 1856 (not 1857) and some described from Makas- 

 sar, Celebes, take the year-date 1859 (not i860). In the present catalogue care 

 has been taken to ensure that the publication year-dates cited for all the nominal 

 species involved are in accord with the issue dates of the parts, and this will account 

 for many 'one-year discrepancies' between the dates in the present work and those 

 often cited by earlier workers (myself included). The issue dates of the various 

 papers concerned are shown in Walker's references on pp. 320-321. 



Status of the generic names EUHAPALIVORA and MASICERELLA. 

 In an earlier work (Crosskey, 1967a : 13, 18) it was stated that the names Euhapalivora 

 and Masicerella have the status of unavailable nomina nuda, but I have revised 

 my opinion on this and now consider that they are available. The mode of publica- 

 tion of these names was unusual, and presents some uncertainty as to how the 

 ICZN Code should be interpreted in relation to them. It is desirable to discuss 

 this briefly in order to explain the changed availability status for the two names 

 shown in the catalogue on p. 252. 



Both names were manuscript names of Baranov that were known to Gardner. 

 Baranov intended to describe Euhapalivora and Masicerella as new monotypic 

 genera based on adult flies reared by Gardner in India, but in fact never did so. 

 Gardner (19406), however, published short descriptions of the puparia from which 

 the adult flies were reared and used the binomina chosen by Baranov, viz. Euha- 

 palivora indica and Masicerella indistincta; he was aware that his publication might 

 pre-date Baranov's descriptions, for he stated that in the event of it doing so his 



