Valid Names Results

Pseudaulacaspis takahashii (Ferris, 1955) (Diaspididae: Pseudaulacaspis)

Phenacaspis takahashii Ferris 1955d: 52-53. Type data: TAIWAN: Taipeh, Yuan Fung-shi Monastery, on undetermined host, by T. Maa. Syntypes, female, Type depository: Davis: The Bohart Museum of Entomology, University of California, California, USA; accepted valid name Illustr.
Chionaspis takahashii (Ferris, 1955); Tao 1978: 102. change of combination
Pseudaulacaspis takahashii (Ferris, 1955); Xie 1998: 125. change of combination

Families: 2 | Genera: 3

Countries: 3

WeiFe2012a: pp.13-16 ( Adult (F) ) [Key to Chinese species of the genus Pseudaulacaspis]
Chen1983: pp.66 ( Adult (F) ) [Key to Chinese species of Phenacaspis] Key as: Phenacaspis takahashii
Chou1982: pp.142 ( Adult (F) ) [Key to Chinese species of Pseudaulacaspis]

Systematics: Pseudaulacaspis takahashii is similar to P. grandilobis (=P. ernesti). P. takahashii differs from P. ernesti by having a less squat body, by lacking numerous large dorsal ducts on the median areas of the head and thorax and by lacking numerous pores around the 2nd spiracle (Takagi, 1975).
Structure: Adult female body broad, widest across the metathorax, lateral lobes of the segments prominent. Dorsal ducts in six rows. Median lobes quite large and moderately prominent, with a pair of setae between them. 2nd lobes of normal shape, but small. 3rd lobes consisting of a pair of rather narrow prominences which are strongly serrate at their apices. Perivulvar pore groups noticeably large (Ferris, 1955d).
General Remarks: Detailed description and illustration by Takagi (1970).