By Stephen P. Hopkin
This entire paintings is the 1st single-volume publication of the 20 th century to study the biology of this significant crew of bugs, together with a whole record of Collembola genera including greater than 2,500 references in addition to the discussions of springtail habit, body structure and evolution.
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This finished paintings is the 1st single-volume booklet of the twentieth century to study the biology of this significant crew of bugs, together with an entire record of Collembola genera including greater than 2,500 references in addition to the discussions of springtail habit, body structure and evolution.
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Extra info for Biology of Springtails
Order JULIDA (p . 96) • Nemasoma varicorne (p. 102) , Proteroiulus fuscus (p. 107) and Brachyiulus pusil/us (p. 183) may mature with fewer than 30 rings (see p . 96) . 52 Subclass PENICILLATA Order P O L Y X E N I D A The bristly millipedes stand apart from all other millipedes in certain funda mental respects . The order Polyxenida is accordingly placed in a separate sub-class of the Diplopoda , the PENICILLATA ( PSELAPHOGNATHA) in antithesis to the remaining diplopods of the sub-class Chilognatha.
Order CHORDEUMA TIDA (p . 68) . . . . . . . . . . . . . . . . . suborder CRASPEDOSO MATI DEA (p . 7 1 ) 6. Always with ocelli (except stadium I) ; coll um not overlapping the head ; cheeks laterally protuberant , not obviously divided into cardines and stipetes ; no longitudinal striae or other sculpture on the ring ; three pairs of setae on metazonites (Fig . 28) . Adults with 28 or 30 rings ( telson included) , females with 45 or 49 pairs of legs , males with 41 or 45 pairs ; all young stadia except I and II with an even number of pairs .
3 4 3. Twelve tergites , including telson (fewer in young stadia) ; second tergite (shield) much longer than the collum and following tergites ; capable of enrolling into a sphere (Figs . 15-17) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pill millipedes, GLOMERIDA (p . 56) Adults with more than 30 tergites ; pointed head (Fig. 1 8) rare species from South-east England . . . . . . . . . . . . . . . . . . . . . . . . .