Kereng'ende ni wadudu wakubwa wa oda Odonata (odontos = -enye meno) wenye mabawa makubwa maangavu. Kwa asili jina hili limetumika kwa spishi nyekundu. Lakini kwa sababu hakuna jina jingine kwa wadudu hawa, inapendekezwa kutumia jina hili kwa spishi zote za Odonata. Kereng'ende ni wadudu mbuai ambao huwinda wadudu wengine. Kwa sababu ya hiyo macho yao ni makubwa. Wanaweza kuruka nyepesi sana na kuzingazinga, lakini wanaweza kuangama angani pia. Crocothemis brevistigma Crocothemis divisa Crocothemis erythraea, Kereng'ende Mnene (Scarlet Darter) Crocothemis sanguinolenta Crocothemis saxicolor Crocothemis striata Madagascar Trithemis aconita Trithemis aenea Trithemis aequalis Trithemis africana Trithemis annulata, Kereng'ende Mwekundu-urujuani (Violet Dropwing) Trithemis anomala Trithemis arteriosa, Kereng'ende Vena-nyekundu (Red-veined Dropwing) Trithemis basitincta Trithemis bifida Trithemis bredoi Trithemis brydeni Trithemis congolica Trithemis dejouxi Trithemis dichroa Trithemis donaldsoni Trithemis dorsalis Trithemis ellenbeckii Trithemis fumosa Trithemis furva Trithemis grouti Black Dropwing Trithemis hartwigi Trithemis hecate Silhouette or Hecate Dropwing Trithemis imitata Trithemis integra Trithemis kalula Trithemis kirbyi Orange-Winged or Kirby's Dropwing Trithemis monardi Monard's Dropwing Trithemis morrisoni Trithemis nigra Principe Trithemis nuptialis Hairy-legged Dropwing Trithemis osvaldae =Congothemis apicalis Trithemis palustris Okavango Dropwing Trithemis persephone Madagascar Trithemis pluvialis Riffle-and-Reed or River Dropwing Trithemis pruinata Trithemis selika Madagascar, Mayotte Trithemis stictica Jaunty Dropwing Trithemis tropicana Eastern Phantom Dropwing Trithemis werneri Elegant Dropwing Crocothemis corocea Australia Crocothemis nigrifrons Australia Crocothemis servilia (Scarlet Skimmer) Trithemis aurora Asia Trithemis festiva Asia, Europe Trithemis lilacina Indonesia Trithemis pallidinervis Long-legged Marsh Glider East Asia Jike la kereng'ende mnene Dume la kereng'ende nyekundu-urujuani Jike la kereng'ende nyekundu-urujuani Kereng'ende vena-nyekundu Dume la scarlet skimmer Jike la scarlet skimmer