Insect abdomen Abdominal segments may be grouped into

Insect abdomen

Abdominal segments may be grouped into three regions: 1 - visceral region(pregenital): including the seven anterior segments. ﻋﻘﻞ ﺣﺸﻮﻳﺔ 2 - genital region: including the 8 th and 9 th segments in the female and limited only to the 9 th segment in males. ﻋﻘﻞ ﺗﻨﺎﺳﻠﻴﺔ 3 - post genital region: consists of the segments beyond the 9 th. ﻋﻘﻞ ﺑﻌﺪ ﺍﻟﺘﻨﺎﺳﻠﻴﺔ

Silver fish

aphid

2 - prolegs Of caterpillares

Anal cerci

ﺯﻭﺍﺋﺪ ﺗﻨﺎﺳﻠﻴﺔ Reproductive appendages Styli of cockroach

External genitalia of males Cockroach

Needle ovipositor of gryllidae

Stinging apparatus

Insect sting

Types of Insect Life Cycles (apterygote) (exopterygote) (endoterygote) silverfish cockroaches, Locusta, Rhodnius Manduca, Bombyx, Lymantria, Drosophila

Types of larvae: Campodeiform Eruciform Scarabaeiform

Vermiform larva

Types of pupae Exarate pupa Obtect pupa Coarctate pupa