Cheng Gonghuang. Studies on the Labipalpi and Ventral Spines of Periplaneta americana by Scanning Electron Microscopy[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 1996,35(S2):65-69.
Cheng Gonghuang. Studies on the Labipalpi and Ventral Spines of Periplaneta americana by Scanning Electron Microscopy[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 1996,35(S2):65-69.DOI:
This is the initial study on the fine structure of labipalp and ventral spine of periplaneta americana. Each Labipalpus consists of 4 segments where many receptor hairs adhere. From the basal segment to the distal one the sensilla increase gradually. They may be divided into 5 types: Cheatic sensillum A
Cheatic sensillum B
Grooved sensillum. Perforated sensillum and Campaniform sensillum. Only Cheatic s. B can be seen on the basal segment
while the perfoated s. and grooved s. are distributed on the distal one specially. Ventral spines are not segmented. Many Cheatic sensillum B makes an even distribution on the surface of cylindrical spines.