340 CLASS VIII. 
Alucita). We begin, in enumerating the genera, with those that 
approximate most nearly to the flies. 
A. Proboscis short, thick, terminated by two large labia. Sete 
of haustellum in many only two. Palps with four joints, sometimes 
five, mostly incurved or uniarticulate, straight. Zipula L. (Tipu- 
larice or Tipulide of the moderns). 
+ Antenne scarcely longer than head (or at least shorter than 
head and thorax together), mostly with eleven joints, filiform, moni- 
liform or perfoliate. Wings broad, rounded at the apex. 
Aspistes HOFFMANNSEGG, Mric. Antenne octarticulate, clavate 
at the apex. Ocelli three. 
Sp. Aspistes berolinensis, Mutc. Europ. Zweifl. Ins. 1. p. 319, Tab. X1. fig. 16; 
one line long, on the leaves of Tussilago petasites and the flowers of Daucus 
carotta in North-Germany. 
Bibio Grorrr., Mera., (Hirtea Fase.) Antenne novemarticu- 
late, perfoliate. Ocelli three. ‘Tarsi with three pulvilli. Anterior 
tibie armed with a spine. 
Sp. Bibio Marci, Tipula Marci L., R&aumuR Jns, v. Pl. ; PANZER, Deutschl. 
Ins. Heft 95, No. 20; known amongst us by the name of black fly ; the 
larva has ten pairs of air-slits ; it lives underground, and passes the winter ; 
the pupa lies in an oblong round cavity of loosely compacted earth ; after 
three or four weeks, early in the spring (in the last half of April), the per- 
fect insect makes its appearance. Comp. LyYoONET’s observations and 
figures, Recherches, &c., Ouvrage posthume, pp. 58—72, Pl. 7. That these 
flies cause injury to the blossom of apple-trees is a common opinion, but 
entirely without proof; it is quite untrue, at least, that they lay their eggs 
in the blossoms. The larvze, which are found in apple-blossom, are those 
of a small rostrated beetle, Anthonomus pomorum ; see P. H. VAN BERCE, 
Verhandeling over de zwarte vliegen, Haarlem, 1807, 8vo. 
Dilophus Meta. Antenne undecimarticulate, perfoliate. Ocelli 
three. ‘Thorax pectinate, with a double row of denticles. 
Sp. Dilophus vulgaris, Tipula febrilis L. ; MErGuN Europ. zweifl. Ins. 1. Tab. 
x1. fig. 1; Diloph. collaris GuER., Iconogr. Ins. Pl. 93, fig. 7, South 
America, &c. 
Plecia HOFFMANNSEGG, Maca. 
Penthretria Mritc., Larr. Antenne undecimarticulate, per- 
folate. Ocelli three. Palps exsert, incurved, quadriarticulate. Feet 
unarmed, long. 
