德国小蠊（Blattella germanica）：是室内蟑螂中体型最小的一种，体长约10-15毫米，茶褐体色，前胸背板有2条平等的黑褐色条纹，翅发达。德国小蠊一年能经历4-5个世代，卵鞘一直拖在雌虫的尾端，直至孵出若虫才脱落。若虫因此随母体到处扩散，若虫经5—7次蜕皮后成为成虫，若虫期为30-56天。
German Roach：The smallest in-house roach.This small, light-colored roach with the two prominent dark streaks on the thorax is perhaps the chief household pest today. The German roach is more active, produces more eggs and grows faster than other common roaches. The female German roach may produce four or five egg capsules containing up to 50 eggs each. The eggs hatch in about 2 weeks. The nymphs mature into adults in 60-65 days. The life cycle can be completed in 3 months or less.
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美洲大蠊? American cockroach |
德国小蠊? German Cockroach |
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| Larva stage of German Roach |
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