THEREVIDAC — SYRPHIDTE. 
Ins. 267 
Chcrsodromyia ornatipcs , Canary Is., Bigot, p. 277, Bull. Soc. Z. Fr. 
xvi, n. sp. 
Ililarimorpha : does not belong to Leptides ; Bigot, p. xv, Bull. Soc. 
Z. Fr. 1891. 
'Parathalassius, n. g. ( Empidce ), p. 216, for P. blasigii , n. sp., Venice, 
p. 217 ; Mik, Wien. eut. Z. x. 
Iihamphomijia discoidalis , described ; Becker, p. 293, Wien. ent. 
Z. x. 
Steleocheta stiriensis , S. Tyrol, Becker, p. 284, Wien. ent. Z. x, n. sp. 
Symballophthalmus (sub Platypalpus ) cyanophtlialrmis , Strobl, = 
( pidipes , Becker) ; Strobl, p. 267, Wien. ent. Z. x. 
Syneches sp., habits ; Schwarz, P. E. Soc. Wash, ii, p. 146. 
Thereva ( Dialineura ) microcephala , £ described ; R5 der, p. 17, Z. Ent. 
Bresl. (n.s.) xvi. 
Dolichopodidte. 
Aphantotinus , Wheeler, is probably 1'hrypticus , Gerst.; Mik, p. 4, Wien, 
ent. Z. x. 
Argyra flabellifera, Tyrol, Becker, p. 285, Wien. ent. Z. x, n. sp. 
' 'Epithalassius , n. g., p. 186, for jE. sancti-marci , n. sp., Venice, pp. 187 
& 193; Mik, Wien. ent. Z. x. 
Gymnopternus pcenitens, Wh., referred to Ilercostomus ; Mik, p. 4, Wien, 
ent. Z. x. 
Peleoropeodes : systematic position noticed ; Mik, p. 3, Wien. ent. Z. x. 
Psilopodius fulvocinctus, p. 372, laivis , p. 373, W. Africa, Bigot, Ann. 
Soc. Ent. Fr. 1891, n. spp. 
Sphyrotarsus hygrophilus , Tyrol, Becker, p.286, Wien. ent. Z. x, n.sp. 
Xiphandrium breviseta , p. 289, pi. iii, figs. 6 & 7, albomaculatum , p. 291, 
Switzerland, Becker, Wien. ent. Z. x, n. spp. 
S YRPHID2E. 
Critical enumeration of the Central American Syrphidcc ; Williston, 
Biol. Centr. Am. Dipt. iii. 
d Argentinomyia , n. g. ( Psarini ), for A. testaceipes, n. sp., Buenos Ayres ; 
Arribalzaga, p. 199, An. Soc. Arg. xxxii. 
Baccha wulpiana = ( tricincta , Wulp), Tucuman, Arribalzaga, An. 
Soc. Arg. xxxii, p. 250 ; B. rubida , pi. i, fig. 8, gracilis , p. 34, nasuta, 
attenuata, p. 35, punctifrons , laudabilis , p. 36, dolosa y pi. i, fig. 7, lugubris , 
tewea, pi.- i, fig. 10, p. 37, cwrulea , concinna } p. 3$, Mexico, Williston, 
Biol. Centr. Am. Dipt, iii : n. spp. 
Chilosia chrysochlamys, pi. i, fig. 4, sororia , p. 8, sororcula , p. 9, Mexico, 
Williston, Biol. Centr. Am. Dipt, iii, n. spp. 
Chrysotoxum : monograph of the European species ; Giglio-Tos, Atti 
Acc. Tor. xxvi, pp. 134-165, pi. ii. C. arcuatum , Panz., = ( lubricum , 
Giglio-Tos) ; Giglio-Tos, p. 7, Boll. Mus. Zool. Tor. vi, No. 94. 
