THE INSECT ASSOCIATION OF A LOCAL ENVIRONMENTAL COMPLEX. 
61 
Table I. 
Diptera proper to the Association recorded from Alluvial , Glover s, and other 
Meadows and Adjacent Wooded Coppices. 
In the first column the family name applies to all species opposite it and which follow it in column two. 
In the third column the numbers refer to the various months in which the adults were collected. 
Abund. = abundant ; v. com. = very common ; com. = common ; f. com. = fairly common ; occ. = occasional ; 
infreq. ^infrequent ; f indicates that the species has also been found in cultivated crops or ruderal associa- 
tions ; * in forest associations ; I generally found in moist situations. 
Family. 
Species. 
Month. 
Occur- 
rence. 
Remarks on Habits. 
Cecidomyiid^e 
Lasioptera auricincta, Winn. 
5 
occ. 
Larvae and pupae at roots of Festiica ovina. 
j Gecidomyia destructor , Say. 
5, 8 
com. 
Pupa is the “ flax-seed ” in decaying grass ; 
the species commoidy attacks meadow 
, grasses, Triticum and Plileum. 
f Diplosis tritici, lvirk by 
5, 6 
” 
Attacks Triticum besides cultivated grami- 
naceous crops ; fully fed larva, “ Red- 
Maggot,” pupates in the soil. 
MyCETOPHILIDtE . 
Sciara Thomse, L. 
10 
occ. 
Larvae among grass at the base of the stems. 
„ quinguelineata, Mcq. 
3 
,, 
Larvae among decaying tubers. 
,, pulicaria, L. . 
10 
„ 
„ ,, „ 
Bibionid^i . 
Bibio Marci , L. 
3, 4 
v. com. 
Larvae often in masses at roots of meadow 
grasses. 
Tipulidjs . 
* Pachyrrhina histrio, F. 
6 
occ. 
Larvae in rotten wood. 
f „ maculosa, Mg. 
5 
v. com. 
Larvae infesting adjacent potato crop and 
also in meadow soil. 
Tipula nigra, L. 
9, 10 
occ. 
A single larva taken at roots of grass 
pupated at the end of September. 
,, lateralis, Mg. 
6, 8 
com. 
Larva infesting potato field. 
f „ oleracea, L. . 
7, 8 
abund. 
Larva attacking root crops and meadow 
grasses. 
| „ ochracea, Mg. 
7 
occ. 
Larva probably similar to that of previous 
species. 
Leptidte 
f Leptis scolopacea, L. 
4, 7 
v. com. 
Larva free in soil and also in decaying 
seed tubers. 
f ,, tringaria, L. . 
7, 8 
com. 
Larva in decaying seed tubers. 
,, lineola, Fab. . 
\Rhamphomyia sulcata, Fin. 
6 
,, 
Larva probably in the soil. 
EmPID/E 
7,8 
” 
Larva free in soil, adults on low herbage 
in moist places. 
, , longipes, Mg. 
6 
” 
Larva free in soil, adults on low herbage. 
Hitherto recorded mostly in the South 
of England, from the New Forest. 
Empis livida, L. 
6, 7 
abund. 
Larvae free in soil ; adults frequent herb- 
age to prey on smaller Diptera. 
,, lutea, Macq. . 
6 
occ. 
Habits probably similar to thos6 of E. livida. 
„ unicolor, Brulle 
8 
55 55 55 55 
Ililara maura, F. 
8 
com. 
Larvae according to Brauer (p. 61) 1 in 
mole-burrows. 
DOLICHOPODIDiE . 
Dolichopus griseipennis, 
Stann. 
8 
occ. 
Larvae probably in decaying vegetation. 
Dolichopus atratus, Mg. . 
6, 8 
jj 
„ „ ,, „ 
X Poecilobothrus ducalis, Lw. 
8 
y. com. 
Adults on low herbage in damp places. 
1 Brauer, F., “Die Zweiflugler des Kaiserlichen Museums zu Wien,” Denkschr. der Kais. Akad. der Wiss., math.- 
naturwiss. Glasse, Wien, 1883, vol. xlvii. 
TRANS. ROY. SOC. EDIN., VOL. LII, PART I (NO. 2). 
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