We present a new fossil representative of Dictyoptera (the group includes the modern Mantodea and Blattodea) from the Lower Cretaceous Crato Formation (Brazil). LP/UFC CRT 2221(a,b) is characterized by head orthognathous, antennae filiform, large eyes situated laterally, prothorax short, abdomen stout, raptorial forelegs folded and robust, at least prefemora with ventral row of spines and forewings tegminous protrude beyond the abdomen. The shape of the prothoracic appendage and its articulations indicate that the tibia opposes the femur as in most mantodeans. However, the shape and dimensions of the coxae and venation pattern in the apical part of the wing are commonly associated to blattodeans. Unfortunately, the preservation of the wing venation in the here described specimen is incomplete, which prevents a reliable and objective reconstruction of the exact venation pattern. Many species descriptions of fossil dictyopterans are mostly based on the wing venation, consequently, it is difficult to determine its taxonomic status. Although the incompleteness of the specimen does not allow for a formal description, the overall characteristics are consistent with primitive mantodean-type insects. Fossil representatives of transitional forms or side branch groups are rather scarce in the fossil record. Therefore, the specimen presented here may contribute to a better understanding of evolutionary events within Dictyoptera during the Cretaceous.

我们提出了来自下白垩纪克拉托组（巴西）的一种新的代表网翅目（该组包括现代曼托迪亚和螳螂目）的化石。LP/UFC CRT 2221(a,b) 的特征是头正颌，触角丝状，大眼睛位于侧面，前胸短，腹部粗壮，猛禽前肢折叠且结实，至少前股骨腹侧有一排刺，前翅伸出腹部。前胸附肢的形状及其关节表明胫骨与股骨相对，就像大多数曼陀罗动物一样。然而，翅膀顶端部分的臀部和脉络模式的形状和尺寸通常与蜚蠊有关。不幸的是，这里描述的标本中翼脉的保存是不完整的，这阻止了对精确脉络模式的可靠和客观的重建。很多种类的双翅目化石描述大多以翼脉为基础，因此难以确定其分类地位。虽然标本的不完整性无法进行正式的描述，但总体特征与原始曼托迪安型昆虫一致。在化石记录中，过渡形式或侧枝组的化石代表相当稀少。因此，这里展示的标本可能有助于更好地了解白垩纪盘翅目内的进化事件。虽然标本的不完整性无法进行正式的描述，但总体特征与原始曼托迪安型昆虫一致。在化石记录中，过渡形式或侧枝组的化石代表相当稀少。因此，这里展示的标本可能有助于更好地了解白垩纪盘翅目内的进化事件。虽然标本的不完整性无法进行正式的描述，但总体特征与原始曼托迪安型昆虫一致。在化石记录中，过渡形式或侧枝组的化石代表相当稀少。因此，这里展示的标本可能有助于更好地了解白垩纪盘翅目内的进化事件。