288 Ins. 
DIPTERA. 
Chrysogaster viduata , L., larva described ; Beling, Yerh. z.-b. Wien, 
xxxviii, p. 3. 
Cheilosia fasciata , Egg., metamorphoses ; Beling, Yerh. z.-b. Wien, 
xxxviii, p. 3. 
Melano8toma pmctulata , Argentine Rep., Wulp, p. 375, Tijdschr. Ent. 
xxxi ; M. longicornis , p. 263, scitulum, p. 264, Brazil, WiLLlSTON, Tr. 
Am. Ent. Soc. xv : n.spp. 
Gatabomba and Lasiophticus , note on their identity ; Bigot, p. cxxvii, 
Bull. Soc. Ent. Fr. (6) viii. Catabomba , 0. S., and Ischyrosyrphus , Big., 
synonymy of, discussed ; Mik, Wien. ent. Z. vii, p. 222. 
Leucozona leucorum n. var. nigripila ; Mik, Wien. ent. Z. vii, p. 141. 
Syrphus lunulatus , Meig., problematic hermaphrodite ; Becker, Wien, 
ent. Z. vii, pp. 71—74. 
S. erraticus, Brazil, Williston, Tr. Am. Ent. Soc. xv, p. 264, n. sp. 
Ichyro syrphus, Big., note on ; Bigot, p. cxxvii, Bull. Soc. Ent. Fr. (6) 
viii. 
Mesograpta polita , Say, the corn-feeding Syrphus fly, habits and meta- 
morphoses ; Ins. Life, i, pp. 5-8. 
Sphcerophoria nasuta , trilimbata , p. 253, S. ( Mesograpta ) quinquecincta , 
quinquemaculata , p. 254, Mexico, Bigot, Ann. Soc. Ent. Fr. (6) viii, n. spp. 
Ocyptamus trigonus , Wied., = ( Baccha torva, Willist.) ; Williston, 
Tr. Am. Ent. Soc. xv, p. 265. 
Baccha stenogaster , p. 266, exigaa, p. 267, placiva, p. 269, Brazil, 
Williston, Tr. Am. Ent. Soc. xv ; B. tricincta, Argentine Rep., Wulp, 
p. 376, pi. x, fig. 8, Tijdschr. Eut. xxxi : n. spp. 
Hammerschmicltia = ( Eugeniamyia , Willis.) ; Mik, Wien. ent. Z. vii, 
p. 27 ; H. ferruginea, Schura., synonymy; ROdee, (773). 
Volucella bombylans , L., variation in colour of ; Mik, SB. z.-b. Wien, 
xxxviii, p. 63. 
V. merctriciaSy cemula, p. 272, prescutellark , persiinilis, p. 273, musta , 
mu8y p. 274, viridhy p. 275, Brazil, Williston, Tr. Am. Ent. Soc. xv, 
n. spp. 
Apophysophora, n. g., p. 276, for Volucella hirtipes, Macq. et A. scutel- 
lata, n. sp., Brazil, p. 277 ; Williston, Tr. Am. Ent. Soc. xv. 
Eristalis congruus , Argentine Rep., Wulp, p. 371, Tijdschr. Ent. xxxi ; 
E. ochraceuSy p. 279, proccipuusy volaticus, p. 280, schistaceus, parvulus } 
p. 282, Brazil, Williston, Tr. Am. Ent. Soc. xv : n. spp. 
Bolicogina, Macq., is not distinct from Helophilus ; Bigot, p. 102, Bull. 
Soc. Z. Fr. xiii. 
Helophilus nigrotarsatus, Schin., metamorphoses ; Beling, Verh. z.-b. 
Wien, xxxviii, p. 4. 
H. hahniy Cape Horn, Bigot, Miss. Sci. Cap Horn, vi, p. 24, pi. iii, 
fig. 6, n. sp. 
Pteroptila cemula , Brazil, Williston, p. 283, Tr. Am. Ent. Soc. xv, 
n. sp. 
Pterallastes nubeculosusy Argentine Rep., Wulp, p. 372, Tijdschr. Ent. 
xxxi, n. sp. 
Merodon trochantericus , p. 29, rubkliventrisy p. 30, Sardinia, Costa, Atti 
Acc. Napoli (2) i, No. 13, n. spp. 
