Takagi, S. 2010 The tubercularis species group of Aulacaspis (Sternorrhyncha: Coccoidea: Diaspididae.. Insecta Matsumurana (New Series) 66: 57-114.
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Notes: Eight species of the scale insect genus Aulacaspis are recognized as belonging to the tubercularis species group: A. tubereularis, A. alisiana, and six new species, A. acuta, A. taipingensis, A. alyxiae, A. scurrulae, A. seaphocalyeis, and A. lagunae, the first of the new species occurring in Malaysia, Singapore, and the Philippines, the last in Luzon, and the other four in Malaya. A. tubereularis and A. acuta are represented by abundant material and broadly variable in morphological characters, and tbe species concepts adopted in tbis study are tentative. A. taipingensis is closely related to A. acuta, and distinguished from the latter as another species rather tentatively. The other four of the new species appear distinct so far as represented by the available material. As a corollary of the collection data, A. tubercularis should originally have been a Himalayan species occurring on Lauraceae almost exclusively; it should have adapted itself to mango trees somewhere at the foot of the Himalayas, and then to mangroves in eastern Asia. A. alisiana, occurring in Taiwan and continental China, may be an allopatric counterpart of the Himalayan stock of A. tubereularis. A. acuta is also closely related to A. tubercularis, from which it should have derived somewhere in western Malesia. The new species other than A. acuta appear to be more or less related to the latter, from which tbey may have emerged directly or indirectly.
