 
Synonyms: Dryophylax aestivus Duméril, Bibron & Duméril, 1854 Philodryas aestivus - GÜNTHER 1858 Pseudouromacer lugubris WERNER 1924 Philodryas subcarinatus Boulenger, 1902 Pseudouromacer lugubris Werner, 1924 Sub-species : Philodryas aestiva aestiva (Dumeril, Bibron & Dumeril, 1854) Philodryas aestiva subcarinatus (Boulenger, 1902) P. aestiva aestiva : 19 rows of scales at midbody P. aestiva subcarinata : 21 rows of scales at midbody Lenght : about 1,5 meter Biotope : Philodryas aestiva could be seen on mountain range (low mountains, sierras), hiding under rocks. They can also be found on open plains and near rivers or in sub-urban zone. Behaviour: it hides under rocks and fallen trees. Authors say it´s aggressive, although the specimens which we collected were quite sociable. This species can also be found in bushes and trees, where it can be dissimulated by its color. Feeding: mices, frogs, little lizards, juvenile pigeons (pichones de torcazas), little birds and bats (an exemplar was collected in a cave on Sierra de Mahoma eating a Tadarida Brasiliensis Brasiliensis). Reproduction: in November, the Females can lay from 8 to 16 eggs attached between them, in nests of black ants. The juveniles born in december and january. Distribution :
P. aestiva subcarinata :
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