Seen beginning of rainy season, less now little rain. Will try to photo next time I see good specimen
Ovoid shape, 1 - 2.5cm, chocolate brown colouring top whiter underneath, smooth top, slightly ribbed underneath, may feel slightly tacky and rubbery on back, movement almost imperceptible, very difficult to push with finger, I think that they leave a brown staining to cement road and in local small keep fit running track ( similar to that of cow / buffalo poo which "yes" sometimes enter park ), have not seen glitter track as with certain snails, have not noticed them in grass or roadside plants.
I am sure I will get some hilarious replies but having worked in farming in many countries since the 60's I have only seen this 'insect' here.