Three Remarkable New Fungus-Growing Ant Species of the Genus Myrmicocrypta (Hymenoptera: Formicidae), with a Reassessment of the Characters That Define the Genus and Its Position within the Attini
Three Remarkable New Fungus-Growing Ant Species of the Genus Myrmicocrypta (Hymenoptera: Formicidae), with a Reassessment of the Characters That Define the Genus and Its Position within the Attini
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三种显着的真菌生长蚂蚁属 Myrmicocrypta（膜翅目：蚁科）的新物种，以及对定义该属的特征及其在 Attini 中的位置的重新评估
作者：
J. Sosa‐Calvo;T. Schultz
摘要描述了产于巴西和秘鲁的真菌蚁属Myrmicocrypta Fr. Smith的三个新种，它们都具有直立多毛的特征。直立密穴蚁Myrmicocrypta erectapilosa sp. nov.和巴克密穴蚁Myrmicocrypta bucki sp. nov.是该属的典型特征，它们的体型较小，有被抹去的瘤状雕塑，而卡马戈密穴蚁Myrmicocrypta camargoi sp. nov.也是该属的独特之处，它的体型较大，有明显的雕塑。M. erectapilosa和M. bucki是密切相关的，但可以通过在额唇和口下齿、额叶、肠系膜雕刻和前突棘上的差异来区分。所有的种姓（工人、女性和男性）都被描述为M。camargoi、工蜂和雌蜂。erecapilosa，而M.巴克。因为直立的毛在这些物种遇到的矛盾的状态以前认为诊断的属，即贴伏，匙形或鳞状毛在所有其他Myrmicocrypta物种，我们必须讨论的字符，定义属Myrmicocrypta和审查其系统发育的位置部落Attini。
ABSTRACT Three new species of the fungus-growing ant genus Myrmicocrypta Fr. Smith are described from Brazil and Peru, all unique within the genus due to their shared character state of erect pilosity. Myrmicocrypta erectapilosa sp. nov. and Myrmicocrypta bucki sp. nov. are otherwise typical for the genus in their small size and effaced, tuberculate sculpture, whereas Myrmicocrypta camargoi sp. nov. is also unique in its large size and pronounced sculpture. M. erectapilosa and M. bucki are closely related but can be distinguished by differences in the frontoclypeal and hypostomal teeth, frontal lobes, mesonotal sculpture, and propodeal spines. All castes (workers, gynes, and males) are described for M. camargoi, workers and gynes are described for M. erectapilosa, and only workers are described for M. bucki. Because the erect pilosity encountered in these species contradicts the state previously considered diagnostic for the genus, that of appressed, spatulate or squamiform pilosity found in all other Myrmicocrypta species, we necessarily discuss the characters that define the genus Myrmicocrypta and review its phylogenetic position within the tribe Attini.