Table 3.

Energy dispersive X-ray spectroscopy measurements (means ± SE) of the most common inorganic elements in the cuticle of prestomal teeth from eight fly species. Regions where EDS measurements were made (1–3) are shown as R. Region 1 pertains to the location on the labellum between the pseudotracheae, and Region 2 and 3 are at the distal and proximal locations of the prestomal teeth, respectively.

Species	R	Na	S	Cl	K	Ca	Mg
C. vomitoria	1	0.15 ± 0.03Aa	1.31 ± 0.51a	0.20 ± 0.18B	0.99 ± 0.47Aa	0.12 ± 0.06a	0.05 ± 0.02ABCa
	2	0.07 ± 0.01Ab	0.08 ± 0.02BCb	0.04 ± 0.01B	0.07 ± 0.01Ab	0 ± 0Bb	0.01 ± 0.01b
	3	0.07 ± 0.02Ab	0.17 ± 0.04ABb	0.18 ± 0.04AB	0.16 ± 0.04ABb	0 ± 0Bb	0 ± 0b
L. sericata	1	0.05 ± 0.02C	1.27 ± 0.72	0.08 ± 0.07B	0.10 ± 0.03Ba	0.61 ± 0.53	0.02 ± 0.01C
	2	0.05 ± 0.03AB	0.08 ± 0.01BC	0.03 ± 0B	0 ± 0Bb	0 ± 0B	0 ± 0
	3	0.01 ± 0.01C	0.12 ± 0.02B	0.07 ± 0.01B	0.01 ± 0.01Bb	0 ± 0B	0 ± 0
Pr. azurea	1	0.06 ± 0.02BCa	0.42 ± 0.13a	0.01 ± 0.01Bb	0.13 ± 0.05B	0.06 ± 0.03a	0.05 ± 0.02Aa
	2	0.01 ± 0.01BCb	0.08 ± 0.01BCb	0.02 ± 0.01Bb	0.01 ± 0.0B	0 ± 0Bb	0 ± 0b
	3	0.03 ± 0.02BCab	0.15 ± 0.02ABb	0.16 ± 0.03ABa	0.04 ± 0.01B	0 ± 0Bb	0 ± 0b
Sa. bullata	1	0.12 ± 0.02ABa	0.58 ± 0.24	0 ± 0Bb	0.61 ± 0.29ABa	0.01 ± 0.01	0.07 ± 0.01A
	2	0.03 ± 0.01ABCb	0.09 ± 0.01BC	0.04 ± 0.01Bb	0.06 ± 0.01Ab	0 ± 0B	0 ± 0
	3	0.05 ± 0.01ABb	0.47 ± 0.33A	0.25 ± 0.12Aa	0.75 ± 0.61Ab	0 ± 0B	0 ± 0
Po. vagabunda	1	0 ± 0C	0.60 ± 0.36	0.01 ± 0.01B	0 ± 0B	0 ± 0	0.07 ± 0.01ABa
	2	0 ± 0C	0.13 ± 0.02B	0.02 ± 0.01B	0 ± 0B	0 ± 0B	0.01 ± 0.01b
	3	0 ± 0C	0.13 ± 0.04AB	0.10 ± 0.05AB	0 ± 0B	0 ± 0B	0 ± 0b
M. domestica	1	0.03 ± 0.02C	0.97 ± 0.51	0 ± 0Ba	0.25 ± 0.13B	0.40 ± 0.28	0.03 ± 0.02ABC
	2	0 ± 0C	0.22 ± 0.04A	0.12 ± 0.03Aab	0.06 ± 0.02A	0.05 ± 0.03A	0 ± 0
	3	0.01 ± 0.01	0.27 ± 0.08AB	0.20 ± 0.07ABb	0.04 ± 0.02B	0.03 ± 0.02A	0.01 ± 0.01
St. calcitrans	1	0 ± 0C	0.97 ± 0.31a	1.66 ± 1.04A	0.06 ± 0.06B	0.05 ± 0.05	0 ± 0C
	2	0 ± 0C	0.10 ± 0.06BCb	0.04 ± 0.02B	0 ± 0B	0 ± 0B	0 ± 0
	3	0 ± 0C	0.10 ± 0.03ABb	0.20 ± 0.09AB	0 ± 0B	0 ± 0B	0 ± 0
Sc. stercoraria	1	0.01 ± 0.01C	0.35 ± 0.13a	0 ± 0Bb	0 ± 0B	0.02 ± 0.01	0.02 ± 0.01BC
	2	0 ± 0C	0.04 ± 0.01Cb	0 ± 0Bb	0 ± 0B	0 ± 0B	0 ± 0
	3	0 ± 0C	0.10 ± 0.03ABb	0.20 ± 0.03ABa	0 ± 0B	0 ± 0B	0 ± 0

Uppercase letters represent significant differences among species per region, lowercase letters represent differences among regions within species.