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Table 3 Presence of blood in the digestive tracts of the species of triatomines found in Caracas

From: Panstrongylus geniculatus and four other species of triatomine bug involved in the Trypanosoma cruzi enzootic cycle: high risk factors for Chagas’ disease transmission in the Metropolitan District of Caracas, Venezuela

  

2007

2008

2009

2010

2011

2012

2013

Sub-total

Species

Sex/stage

No blood

Blood

No blood

Blood

No blood

Blood

No blood

Blood

No blood

Blood

No blood

Blood

No blood

Blood

No blood

Blood

P. geniculatus

Female

18

26

100

118

125

176

246

320

83

150

62

116

57

144

691

1050

 

Male

19

8

116

48

151

72

392

173

97

47

74

33

67

42

916

423

 

NIII

0

1

2

0

3

5

1

6

0

1

0

3

0

1

6

17

 

NIV

0

5

5

2

3

15

3

7

0

1

2

7

2

9

15

46

 

NV

0

1

0

1

3

5

0

5

0

3

0

3

0

0

3

18

 

Sub-total

37

41

223

169

285

273

642

511

180

202

138

162

126

196

1631

1554

T. maculata

Female

0

0

0

0

0

1

3

0

1

0

1

0

1

0

6

1

 

Male

0

0

1

0

0

0

1

0

1

1

1

0

1

0

5

1

 

Sub-total

0

0

1

0

0

1

4

0

2

1

2

0

2

0

11

2

T. nigromaculata

Female

0

0

1

0

2

1

2

4

0

0

1

0

0

0

6

5

 

Male

0

0

0

0

0

0

2

4

0

1

0

0

0

0

2

5

 

Sub-total

0

0

1

0

2

1

4

8

0

1

1

0

0

0

8

10

R. prolixus

Male

0

0

0

0

1

1

0

0

0

0

0

0

0

0

1

1

 

Sub-total

0

0

0

0

1

1

0

0

0

0

0

0

0

0

1

1

Total number of triatomines

37

41

225

169

288

276

650

519

182

204

141

162

128

196

1651

1567