Department of Zoology, Kurukshetra University, Kurukshetra-132 119 (India).
Observations were recorded on internal reproductive organs of ten species of males; viz., Agrypnus lupinosus, A. transversus, A. tostus, A. tuberosus, A. inlustris, A. compestris, Lanelater glabrosus, L. vishvai, L. scutopentagonus and Lacon carinatus, and six species of females, viz., Agtypnus tostus, A. compestris, A. agrestis, A. planus, Lanelater glabrosus and L. vishvai. Structural variations of taxonomic importance were recorded. In male, the testicular follicles are in the form of a rosette in A. tostus, compact oval mass of small follicles in A. lupinosus, A. tmnsversus, A. cornpesois and L. scutopenlagonus and compact oval mass of elongate follicles in remaining species. The vas deferens is uniformly thick in A. inlustris, but distinguishable into anterior slender and posterior thicker and sinuous parts. There are three pairs of accessory glands in A. compestris and four pairs in the remaining species. The lateral accessory glands are invariably present in all the species, each bears an appendix. The latter is coiled and located in the middle of gland in the species of Agrypnus, subterminal in Lanelater spp. and terminal in Lacon spp. A diverticulum on each lateral accessory gland is present in A. inlustris and L. vishvai. In female, a single ovariole exists in each ovary in L. glabrosus and L. vishvai, but numerous in the remaining species. The genital chamber is distinguishable into upper bursa copulatrix and lower vagina in all the species, except in A. agrestis and A. planus. The bursa copulatrix is entirely chitinised in A. agrestis, L. glabrosus and L. vishvai, partially in A. planus and A. compestris, and non-chitinised in A. tostus. The spermatheca is present in all the species, except in A. agrestis and A. planus.
