The objective of this study was to assess the parity, presence of blood in the stomach, and the gonotrophic discordance of females of Aedes aegypti and Aedes albopictus captured in two areas of the city of São Paulo. The captures were undertaken monthly, by aspiration, in the period from January, 2015 to August, 2017. All the females of the two species had their midguts and ovaries dissected to determine the presence of blood and the parity/stage of maturation. With regard to parity, 27% and 34% of the females of Ae. aegypti and Ae. albopictus, respectively, were parous or were in advanced stages of the development of their ovaries (33% and 27%, respectively). The larger part of the females of Ae. aegypti and Ae. albopictus contained blood in their stomachs (77% and 60%, respectively), beyond which 36% and 27% of the females of Ae. aegypti and Ae. albopictus, respectively, were in gonotrophic discordance. Our results indicate favorable conditions in the study areas because of the presence of parous females. Moreover, this frequent and multiple contact of Ae. aegypti and Ae. albopictus females with vertebrate hosts, such as humans, increases the possibility of transmitting the viruses they may be carrying.

中文翻译：

---

巴西圣保罗市雌性埃及伊蚊和白纹伊蚊（双翅目：库蚊科）的奇偶性和性腺营养不一致。

本研究的目的是评估在圣保罗市两个地区捕获的雌性埃及伊蚊和白纹伊蚊的奇偶性、胃中血液的存在情况以及性腺营养的不一致。2015 年 1 月至 2017 年 8 月期间，每月通过抽吸进行捕获。对这两个物种的所有雌性进行中肠和卵巢解剖，以确定是否存在血液以及胎次/成熟阶段。就胎次而言，Ae 的雌性分别为 27% 和 34% 。埃及伊蚊和伊蚊。白纹伊蚊分别已生育或处于卵巢发育晚期（分别为 33% 和 27%）。Ae的大部分雌性。埃及伊蚊和伊蚊。白纹伊蚊的胃中含有血液（分别为 77% 和 60%），雌性白纹伊蚊的胃中含有血液的比例分别为 36% 和 27%。埃及伊蚊和伊蚊。白纹伊蚊分别处于性腺营养不一致状态。我们的结果表明，由于存在经产雌性，研究区域的条件有利。而且，这种频繁且多次的Ae接触。埃及伊蚊和伊蚊。雌性白纹伊蚊与脊椎动物宿主（例如人类）传播它们可能携带的病毒的可能性增加。