Marisia - Maros Megyei Múzeum Évkönyve 36/1. (2016)
Zoology
The Pterostichini (Coleoptern: Carabidae) of Jamaica Bay Wildlife Refuge Say, P. lucublandus Say. The genus Stereocerus include only one species S. haematopus (Dej.). Were obtained original data about the natural history of Pterostichini and were describe in detail the biology of some species: mating, oviposition periods, fecundity of female, the development period from eggs to adults, adult longevity, duration of each immature stage (egg-, larval-, pupalstages), duration of the entire life cycle, voltinism etc. aspects of feeding and behavior of the adults and of instars larvae L1-L3. The larvae of carabids have three instars in most taxa. 1. Poecilus chalcites (10.5-13.0 mm) body is black, dorsum green or bronze, shining, mouthparts, and legs piceous;l—3 rufous antennomeres; convex pronotum along the entire side margin with a distinct bead; elytra of female markedly alutaceous, dull. Lives in damp woods near water. Beetles are attracted to light. 2. The second species Poecilus lucublandus (9-14 mm) is a monovoltine, spring-summer breeder. Eggs are laid singly or in groups of 4-6 in the soil on different depth. Eggs are white of cylindrical shape, their length of L2 1.5-1.6 mm, width - 0.6- 0.8 mm. The ovipositional period was 75-78 ds, from early May to late July. In laboratory we observed that one female continued laying eggs more than one month after male died, but only 60% of larvae hatched from these eggs. Fecundity of one female was more 90 eggs. The egg stage lasted - 4-5 ds. 3. Larvae hatch from eggs and develop through three instars before pupating; the length of first instar (LI) is 5.0-6.3 mm. 4. The second instar (L2) has yellow body, with abdominal tergites brown and head capsule dark-brown; the length of the second instar is 10.0—10.5 mm. 5. The third instar (L3) is elongated with more darker abdominal tergites, black head capsule and pronotum, golden-brown meso- and metanotum and all tergites of abdomen. The length of this instar on 13—14 ds is 17—19 mm. 6. L3 before pupation becaming dark-brown in color; each larva is building in the soil its pupal chamber with a length of 20 mm and a width of 12 mm. 69 6 5 2 1
