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Table 2 Mean and standard deviation of the antennal and labium segments of three species of Rhodnius

From: Immature instars of three species of Rhodnius Stål, 1859 (Hemiptera, Reduviidae, Triatominae): morphology, morphometry, and taxonomic implications

Instars

Species

Characters

 
  

Antenna

Labium

  

1st seg

2nd seg

3rd seg

4th seg

1st seg

2nd seg

3rd seg

 

R. marabaensis

0.14 ± 0.02A

0.36 ± 0.02A

0.69 ± 0.03A

0.64 ± 0.03A

0.17 ± 0.01A

0.52 ± 0.02A

0.29 ± 0.01A

First

R. prolixus

0.13 ± 0.01A

0.43 ± 0.02B

0.73 ± 0.03B

0.62 ± 0.03A

0.17 ± 0.01AB

0.54 ± 0.02BC

0.28 ± 0.01AC

 

R. robustus

0.13 ± 0.01A

0.37 ± 0.02A

0.68 ± 0.03A

0.63 ± 0.05A

0.16 ± 0.01AC

0.53 ± 0.03AC

0.27 ± 0.03BC

 

R. marabaensis

0.17 ± 0.01A

0.60 ± 0.03A

0.94 ± 0.03A

0.83 ± 0.06A

0.24 ± 0.02A

0.86 ± 0.03A

0.34 ± 0.01A

Second

R. prolixus

0.17 ± 0.01AB

0.68 ± 0.03B

0.95 ± 0.05A

0.78 ± 0.05A

0.26 ± 0.01B

0.86 ± 0.02A

0.37 ± 0.01B

 

R. robustus

0.16 ± 0.01AC

0.59 ± 0.04A

0.93 ± 0.05A

0.79 ± 0.05A

0.24 ± 0.01A

0.81 ± 0.04B

0.35 ± 0.02A

 

R. marabaensis

0.22 ± 0.01A

0.99 ± 0.05A

1.29 ± 0.05A

1.05 ± 0.08A

0.38 ± 0.03A

1.25 ± 0.08A

0.43 ± 0.02A

Third

R. prolixus

0.22 ± 0.01A

0.94 ± 0.03B

1.16 ± 0.05B

0.88 ± 0.08B

0.35 ± 0.03B

1.21 ± 0.07AB

0.45 ± 0.02A

 

R. robustus

0.22 ± 0.01A

0.99 ± 0.03A

1.24 ± 0.05C

0.95 ± 0.10B

0.39 ± 0.01A

1.29 ± 0.10AC

0.44 ± 0.03A

 

R. marabaensis

0.30 ± 0.01A

1.64 ± 0.15A

1.73 ± 0.14A

1.38 ± 0.16A

0.55 ± 0.04A

2.17 ± 0.15A

0.63 ± 0.05A

Fourth

R. prolixus

0.29 ± 0.02A

1.39 ± 0.09B

1.46 ± 0.13B

1.12 ± 0.08B

0.58 ± 0.07AB

1.95 ± 0.07B

0.64 ± 0.05A

 

R. robustus

0.32 ± 0.01B

1.65 ± 0.10A

1.67 ± 0.10A

1.31 ± 0.09A

0.52 ± 0.06AC

1.87 ± 0.08B

0.54 ± 0.06B

 

R. marabaensis

0.41 ± 0.02A

2.71 ± 0.13A

2.36 ± 0.09A

1.60 ± 0.23A

0.73 ± 0.05A

3.10 ± 0.15A

0.79 ± 0.04A

Fifth

R. prolixus

0.40 ± 0.01A

2.17 ± 0.10B

1.90 ± 0.15B

1.37 ± 0.12BC

0.74 ± 0.05AC

2.66 ± 0.06B

0.75 ± 0.07AB

 

R. robustus

0.40 ± 0.02A

2.48 ± 0.24C

2.19 ± 0.29A

1.47 ± 0.21AC

0.79 ± 0.05BC

3.15 ± 0.15A

0.83 ± 0.03AC

  1. Means with different superscripts at each site are significantly different from each other (one-way ANOVA followed by a Tukey test). In bold, we present statistically significant measurements for all three comparisons in Tukey’s pairwise test for differentiation of the species. Mean in millimeters
  2. Seg segment