Chagas vectors Panstrongylus chinai (Del Ponte, 1929) and Panstrongylus howardi (Neiva, 1911): chromatic forms or true species?

Table 5 Correlation coefficients between head and wing variation

Species	Size / Shape	Females	P-value	Males	P-value
P. howardi	Size (r)	0.52	0.024*	0.25	0.140
P. howardi	Shape (Rv)	0.23	0.528	0.35	0.040
P. chinai	Size (r)	0.84	< 0.001*	0.81	< 0.001*
P. chinai	Shape (Rv)	0.20	0.744	0.29	0.063

Notes: For size correlation coefficients (r), P-value was computed according to the Studentʼs t-test. For shape correlation coefficients (Rv), which are here the Escoufier’s coefficient (see Methods), P-values are the proportion of pseudo-coefficients equal or larger than the observed coefficient after non-parametric tests (1000 runs)

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