Insect galls formed within the infructescences (cones) of Allocasuarina luehmannii and Casuarina pauper in southern New South Wales, Australia, are described. The galling was internal within the infested cones, which were small and irregularly developed, but could appear superficially normal except that they had a higher than normal proportion of samaras retained on bracteole dehiscence. Cross-sections revealed abnormal morphology and wasp larval chambers. All exit holes found were between bracteole pairs of either fertile or infertile florets. Emergent wasps were tentatively identified as Eurytoma sp. sensu lato (Hymenoptera: Eurytomidae). These cryptically galled infructescences represent a previously undescribed gall type in the Casuarinaceae and, for Eurytoma, potentially a rare instance of phytophagy in Australia. Infested cones were found in a season when normal cones in this drought affected area were not easily found. It was concluded that this phytophagy could negatively impact the regeneration potential of two already compromised sheoak species.

中文翻译：

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隐性瘿果序：一种新的木麻瘿类型在 Allocasuarina luehmannii 和 Casuarina pauper (Casuarinaceae)

描述了在澳大利亚新南威尔士州南部的 Allocasuarina luehmannii 和 Casuarina pauper 的果序（锥体）内形成的虫瘿。磨损在受侵染的锥体内部，锥体小且发育不规则，但表面上可能看起来正常，只是它们在小苞片开裂处保留的翅果比例高于正常比例。横截面显示异常形态和黄蜂幼虫室。发现的所有出口孔都在可育或不育小花的小苞片对之间。紧急黄蜂被初步鉴定为 Eurytoma sp。sensu lato（膜翅目：Eurytomidae）。这些神秘的瘿果序代表了木麻黄科中一种以前未描述的瘿类型，对于 Eurytoma 来说，这可能是澳大利亚罕见的植物自噬实例。在这个受干旱影响的地区不容易找到正常锥体的季节发现了受侵染的锥体。得出的结论是，这种植物自噬可能会对两种已经受到损害的 Sheoak 物种的再生潜力产生负面影响。