Morphology of immature stages and life cycle of Monotoma testacea Motschulsky (Coleoptera: Monotomidae) Author Jałoszyński, Paweł text Zootaxa 2021 2021-03-05 4941 1 51 83 journal article 7800 10.11646/zootaxa.4941.1.3 ec5e0a07-2a84-46f0-b404-fd03f9744904 1175-5326 4594680 30ABD430-7F6E-4F83-8DB5-CD191199FFAF Monotoma ( s. str. ) testacea Motschulsky, 1845 Egg ( Figs 1–4 ) Eggs oval, brown ( Figs 1–3 ), about twice as long as broad, length 418–431 μm, width 205–220 μm ( n = 10); chorion with polygonal (mostly hexagonal) sculpture ( Fig. 4 ) composed of dense asperities forming irregular ridges surrounding flat alveolae; the latter covered with much smaller and densely distributed asperities, median group of asperities in each alveola fused and forming an irregular tubercle. Micropyle not found. Most eggs have a small projection on one end ( Fig. 3 ). The projection is on the end that left the female’s oviduct last during egg laying. The hatching larva pushes and separates a broad oval dorsal portion of chorion near the “basal” end ( i.e. , opposite to the projection), about as long as or slightly longer than 1/3 of egg.