Baba M
Divsion of Medical Zoology, Medical College of Oita, Japan.
J Med Entomol. 1992 Jul;29(4):603-10. doi: 10.1093/jmedent/29.4.603.
Oviposition habits and seasonal changes in wing length, head width, and number of ovarioles of Simulium kawamurae Matsumura were investigated in Kyushu Island, Japan. Gravid flies swarmed over turbulent water and laid eggs on rock surfaces in the splash zone. Large, irregular egg masses often resulted from the mass oviposition by many females within the same small area. Oviposition occurred at dusk during spring-summer, shifting to earlier periods during autumn-winter. Fecundity increased linearly as a function of body size (i.e., both with the cube of wing length and of head width, showing a better fit with the latter). Spring flies had a larger mean body size and fecundity than both summer and autumn flies. Winter flies had wings as long as spring flies, but their head widths and fecundity were comparable to summer-autumn individuals. This indicated seasonal variation in the relative proportion of body structures.
在日本九州岛，对村松蚋（Simulium kawamurae Matsumura）的产卵习性以及翅长、头宽和卵巢小管数量的季节性变化进行了调查。孕蝇聚集在湍急的水流上方，并在飞溅区的岩石表面产卵。许多雌蝇在同一小区域内大量产卵，常常形成大的、不规则的卵块。产卵发生在春夏季的黄昏时分，秋冬季则提前至更早时段。繁殖力随着体型大小呈线性增加（即与翅长的立方和头宽均相关，与后者的拟合度更好）。春季的蝇类平均体型和繁殖力均大于夏季和秋季的蝇类。冬季的蝇类翅长与春季的蝇类相当，但其头宽和繁殖力与夏秋季的个体相当。这表明身体结构的相对比例存在季节性变化。
