The house cricket (Acheta domesticus) is a nutrient-rich insect that can be mass-produced for food to bridge the nutritional gap of human food. Good knowledge of the different developmental stages is crucial for the success of its farming. This study is therefore aimed at understanding the morphological changes of house cricket egg, first stage of the development cycle, but unfortunately little studied. To achieve this, 92 eggs were observed, measured and described in the laboratory. Measurements were taken from day one old to hatching. Six days after oviposition, the outer chorion degradation had started. From ten days, the translucent chorion was visible, revealing the eyes of the embryo as well as bilateral symmetry. An advanced pigmentation, metamerism and the presence of cerci were then observed on day twelve (12). The incubation time for this elongated egg was sixteen (16) days. During this period, variations in egg length (2.53 ± 0.10 mm to 3.32 ± 0.24 mm) and width (0.75 ± 0 mm to 0.99 ± 0.04 mm) were recorded. As for the volume, a variation of 0.66 ± 0.03 mm3 to 1.92 ± 0.23 mm3 was noted. Egg length, width and volume increased slowly from 1 to 4 days. This increase was somewhat faster from 4 to 8 days before reaching a plateau until hatching. A variation in the egg aspect ratio from 3.38 ± 0.14 to 3.36 ± 0.24 was then noted throughout development. The results of the present study could form a basis for successful breeding of this insect.

中文翻译：

---

圈养蟋蟀（Achetadomesticus Linnaeus，1758；直翅目：蟋蟀科）卵的形态学描述

家蟋蟀（Achetadomesticus）是一种营养丰富的昆虫，可以大量生产用于食物，以弥补人类食物的营养缺口。对不同发育阶段的充分了解对其养殖的成功至关重要。因此，这项研究旨在了解家蟋蟀卵的形态变化，即发育周期的第一阶段，但遗憾的是研究很少。为了实现这一目标，在实验室中观察、测量和描述了 92 个鸡蛋。从第一天到孵化进行测量。产卵后六天，外层绒毛膜开始降解。十天后，可以看到半透明的绒毛膜，露出胚胎的眼睛以及双侧对称性。然后在第十二天 (12) 观察到晚期色素沉着、同色异谱和尾蚴的存在。这个拉长的鸡蛋的孵化时间是十六 (16) 天。在此期间，记录了鸡蛋长度（2.53 ± 0.10 mm 至 3.32 ± 0.24 mm）和宽度（0.75 ± 0 mm 至 0.99 ± 0.04 mm）的变化。至于体积，注意到从 0.66 ± 0.03 mm3 到 1.92 ± 0.23 mm3 的变化。鸡蛋的长度、宽度和体积从 1 天到 4 天缓慢增加。在达到平台直至孵化之前的 4 到 8 天，这种增加稍微快一些。然后在整个发育过程中注意到鸡蛋纵横比从 3.38 ± 0.14 到 3.36 ± 0.24 的变化。本研究的结果可以为这种昆虫的成功繁殖奠定基础。注意到 03 mm3 到 1.92 ± 0.23 mm3。鸡蛋的长度、宽度和体积从 1 天到 4 天缓慢增加。在达到平台直至孵化之前的 4 到 8 天，这种增加稍微快一些。然后在整个发育过程中注意到鸡蛋纵横比从 3.38 ± 0.14 到 3.36 ± 0.24 的变化。本研究的结果可以为这种昆虫的成功繁殖奠定基础。注意到 03 mm3 到 1.92 ± 0.23 mm3。鸡蛋的长度、宽度和体积从 1 天到 4 天缓慢增加。在达到平台直至孵化之前的 4 到 8 天，这种增加稍微快一些。然后在整个发育过程中注意到鸡蛋纵横比从 3.38 ± 0.14 到 3.36 ± 0.24 的变化。本研究的结果可以为这种昆虫的成功繁殖奠定基础。