Morphometric
variation in Nebritus
(Diptera: Therevidae)
(N=10 for males and females of each species)
The range (in mm) or ratio for each measurement is followed by
the mean.
| Males |
N.
pellucidus |
N.
powelli |
N.
tanneri |
| Total
length, excluding antennae |
6.2-8.9,
7.3 |
5.6-6.7,
6.3 |
5.3-7.8,
6.5 |
| Head
length |
1.2-1.5,
1.3 |
0.8-1.2,
1.0 |
1.0-1.3,
1.2 |
| Antennal
length/head length |
1.2-1.6,
1.3 |
1.0-1.2,
1.1 |
1.0-1.3,
1.1 |
| Scape:
length |
0.82-1.10,
0.97 |
0.46-0.58,
0.51 |
0.56-0.78,
0.62 |
| Scape:
length/width |
2.4-3.0,
2.7 |
3.7-4.8,
4.2 |
3.9-5.6,
4.7 |
| Scape:
length/length of pedicel |
6.6-9.2,
7.6 |
4.0-5.6,
4.6 |
4.7-6.6,
6.1 |
| Pedicel:
length |
0.12-0.14,
0.13 |
0.10-0.12,
0.11 |
0.10-0.12,
0.10 |
| Pedicel:
length/width |
0.6-1.0,
0.9 |
0.7-1.0,
0.9 |
0.6-1.0,
0.7 |
| Flagellum:
length |
0.58-0.70,
0.65 |
0.38-0.44,
0.40 |
0.46-0.62,
0.55 |
| Flagellum:
length/width |
4.0-4.7,
4.4 |
2.7-3.8,
3.3 |
3.0-4.4,
3.8 |
| Flagellum:
length/Scape length |
0.6-0.7,
0.7 |
0.8-0.9,
0.8 |
0.7-1.0,
0.9 |
| Maxillary
palp: length |
0.42-0.60,
0.49 |
0.40-0.50,
0.45 |
0.42-0.60,
0.48 |
| Maxillary
palp: length/width |
3.8-6.8,
6.1 |
3.1-4.2,
3.9 |
2.6-5.0,
3.6 |
| Wing:
length |
5.3-6.0,
5.8 |
4.2-5.2,
4.7 |
4.5-6.3,
5.6 |
| Wing:
length/width |
3.1-3.9,
3.3 |
2.8-8.4,
3.2 |
2.7-3.5,
3.1 |
| |
|
|
|
| Females |
N.
pellucidus |
N.
powelli |
N.
tanneri |
| Total
length, excluding antennae |
7.8-10.0,
9.1 |
6.3-8.4,
7.1 |
6.5-8.9,
8.0 |
| Head
length |
1.2-1.4,
1.4 |
0.9-1.1,
0.9 |
1.0-1.3,
1.1 |
| Antennal
length/head length |
1.3-1.6,
1.5 |
1.0-1.2,
1.1 |
1.1-1.3,
1.2 |
| Scape:
length |
0.90-1.22,
1.03 |
0.44-0.70,
0.56 |
0.58-0.76,
0.66 |
| Scape:
length/width |
2.1-3.4,
2.6 |
4.0-5.3,
4.6 |
4.1-5.4,
4.9 |
| Scape:
length/length of pedicel |
6.8-8.7,
7.5 |
4.4-7.0,
5.3 |
5.1-7.8,
6.3 |
| Pedicel:
length |
0.12-0.16,
0.14 |
0.10-0.12,
0.11 |
0.08-0.14,
0.11 |
| Pedicel:
length/width |
0.7-1.0,
0.9 |
0.7-1.0,
0.8 |
0.6-1.0,
0.8 |
| Flagellum:
length |
0.68-0.88,
0.79 |
0.36-0.48,
0.40 |
0.49-0.66,
0.57 |
| Flagellum:
length/width |
4.3-6.3,
4.9 |
2.3-3.4,
3.0 |
3.0-4.6,
3.9 |
| Flagellum:
length/Scape length |
0.6-1.0,
0.7 |
0.6-0.8,
0.7 |
0.7-1.0,
0.9 |
| Maxillary
palp: length |
0.34-0.52,
0.46 |
0.38-0.54,
0.45 |
0.46-0.68,
0.52 |
| Maxillary
palp: length/width |
4.3-6.5,
5.8 |
3.2-3.7,
3.6 |
3.1-5.2,
4.0 |
| Wing:
length |
5.7-6.7,
6.1 |
4.7-6.2,
5.1 |
4.5-6.5,
5.8 |
| Wing:
length/width |
3.2-3.9,
3.4 |
2.9-4.0,
3.3 |
2.6-3.5,
3.1 |
table
from Webb & Irwin 1991a
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