The flesh fly genus Blaesoxipha Loew, 1861 is redefined and synonymize
d with the clade Protodexiini + Impariini. A cladistic analysis outlin
es possible inter- and infrageneric phylogenetic relationships of Blae
soxipha and serves as a basis for a division into 10 subgenera. A cata
logue of the world species is provided, giving exhaustive information
on distribution, biology, and bibliographical information for 242 vali
d species. Within Blaesoxipha, a total of 15 new generic synonyms and
39 new specific synonyms are proposed. 53 new species are described: B
, aix sp. n., B. akrolophos sp.n., B. aldrichi sp.n., B. angul sp.n.,
B. apoxa sp.n., B. arizona sp.n., B. arktozophos sp.n., B.n., B. atrox
sp.n., B. boreas sp.n., B. brazil sp.n., B. butte sp.n., B. cactus sp
.n., B. calliste sp.n., B. casuarius sp.n., B. cerkyma sp.n., B. dilob
oderi sp.n., B. ejuncida sp.n., B. enotah sp.n., B. falx sp.n., B. gib
beris sp.n., B. gongros sp.n., B. gracilis sp.n., B. ibe sp.n., B. ina
gua sp.n., B. karnataka sp.n., B, kivu sp.n., B. kyrton sp.n., B. kyrt
onidion sp.n., B. laguna sp.n., B. lapidosa sp.n., B. likros sp.n., B.
lillooet sp.n., B. lingua sp.n., B. melanderi sp.n., B. mona sp.n., B
. mystica sp.n., B. occidens sp.n., B. oriens sp.n., B. ragg sp.n., B.
saccata sp.n., B. sagittarius sp.n., B. santafe sp.n., B. spiniger sp
.n., B. steyskali sp.n., B. taiwanesis sp.n., B. tingomaria sp.n., B.
torreya sp.n., B. tricuspis sp.n., B. tunisia sp.n., B. uncatoides sp.
n., B. utah sp.n., B. vesper sp.n., B. virgo sp.n., 4 new names are pr
oposed to replace secondary junior homonyms: B. kazak n. nov. for Agri
ella grunini Verves, 1985 (preocc. B. grunini Rohdendorf & Verves, 197
7); B. mex n. nov. for Kurtomyia mexicana Lopes, 1976 (preocc. Acantho
dotheca mexicana Lopes & Downs, 1951); B. mongol n. nov. for Agriellam
ongolica Verves, 1985 (preocc. B. mongolica Rohdendorf & Verves, 1978)
; and B. spina n. nov. for B. spinosa Lopes, 1990 (preocc. Acridiophag
a spinosa Lopes, 1978). Twenty lectotypes are designated. Extensive an
notations deal with nomenclatural issues, revised identities and new o
r dubious host records. The monotypic genus-group taxa Conomya Robinea
u-Desvoidy, 1830 and Myorhina Robineau-Desvoidy, 1830 are revised and
shown not to be members of the genus Blaesoxipha.