Abstract

MARTINS-NETO, Rafael Gioia; MANCUSO, Adriana  and  GALLEGO, Oscar Florencio. The Triassic Insect Fauna from Argentina. Blattoptera from the Los Rastros Formation (Bermejo Basin), La Rioja Province. Ameghiniana [online]. 2005, vol.42, n.4, pp.705-723. ISSN 1851-8044.

This contribution describes new fossil insect taxa from the Los Rastros Formation (early Late Triassic), La Rioja Province (Argentina). Several new taxa of the order Blattoptera, two families, seven genera and eleven species are proposed: Argentinoblatta herbsti gen. et sp. nov., Condorblatta lutzae gen. et sp. nov. (Argentinoblattidae fam. nov.), Mancusoblatta pulchella gen. et sp. nov., Hermosablatta crassatella gen. et sp. nov., Hermosablatta pectinata sp. nov. ( Mancusoblattidae fam. nov.), Lariojablatta chanarensis gen. et sp. nov. (family uncertain), Triassoblatta argentina sp. nov., Samaroblatta gualoensis sp. nov., S. corrientesina sp. nov. and Pulchellablatta nana gen. et sp. nov. (Mesoblattinidae sensu stricto ), and Argentinoblattula revelata gen. et sp. nov. (Blattulidae Vischnyakova). The presence of the genera Triassoblatta Tillyard and Samaroblatta Tillyard in the Argentinean Triassic considerably extends their known paleobiogeographic distribution.

Keywords : Triassic insects; Blattoptera; Los Rastros Formation; Argentina.