Females of An. Subpictus Grassi laying two distinctive types of eggs have been distinguished in coastal villages near Pondicherry, and cytological evidence was earlier presented for considering these to be sibling species. There are provisionally designated species A and B. Morphological differences between the species are described, and a method of distinguishing between adult females using the ratio between palpal segments 5/4 is proposed. Species A resembles the description of An. subpictus from India, while in many particulars species B resembles An. subpictus from Malaysia. Further work is required to determine with certainty the identity of these forms.