A short-term experimental study was undertaken for a week in the laboratory to study the development of the pulse beetle, Callosobruchus chinensis L. (Coleoptera: Chrysomelidae) during the incubation period of its eggs laid on cowpea (lobia) (Vigna unguiculata) seeds. The eggs laid on the pulse seeds were observed through the stereo zoom microscope and its pictures taken at the same resolution, daily for a period of one week with the help of smartphone camera. The compiled photomicrographs have been documented in this research paper. This small-scale study was undertaken by an undergraduate student, and minimal resources were used. This information can be used by researchers for designing experimental bioassays aimed to inhibit the growth and development of this economically important insect pest of pulses, and contribute towards its management in the initial stages of its development itself so as to prevent further damage. Experiments are in progress to study the efficacy of botanicals as ovicidal compounds, which can be used in the management of C. chinensis.