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Male genitalia of Lepidoptera Female genitalia of Lepidoptera. The study of the genitalia of Lepidoptera is important for Lepidoptera taxonomy in addition to development, anatomy and natural history. The genitalia are complex and provide the basis for species discrimination in most families and also in family identification. [1]
Antennae are extremely sensitive; the feathered antennae of male moths from the Saturniidae, Lasiocampidae, and many other families are so sensitive that they can detect the pheromones of female moths from distances of up to 2 km (1.2 mi) away. Lepidoptera antennae can be angled in many positions.
The ZW sex-determination system is a chromosomal system that determines the sex of offspring in birds, some fish and crustaceans such as the giant river prawn, some insects (including butterflies and moths), the schistosome family of flatworms, and some reptiles, e.g. majority of snakes, lacertid lizards and monitors, including Komodo dragons.
Male genitalia of Lepidoptera. The main component of the male reproductive system is the testicle, suspended in the body cavity by tracheae and the fat body.The more primitive apterygote insects have a single testis, and in some lepidopterans the two maturing testes are secondarily fused into one structure during the later stages of larval development, although the ducts leading from them ...
A gynandromorph can have bilateral symmetry—one side female and one side male. [24] Alternatively, the distribution of male and female tissue can be more haphazard. Bilateral gynandromorphy arises very early in development, typically when the organism has between 8 and 64 cells. [25] Later stages produce a more random pattern. [citation needed]
Copulating pair (female left, male right) of C. c. cressida on ground. Cressida cressida flies less erratically and more slowly than most other swallowtails, but may fly rapidly if disturbed. Males tend to patrol breeding areas one to three meters above the ground in search of females, rarely landing.
Male. Upperside hindwing and forewing have short blue discal stripes. Female. The upperside forewing is sepia with pale grey streaks amongst the veins. The base of the cell is red. The upperside hindwing is velvety brown with a blue discal area and has black spots, as in the case of the blue Mormon (P. polymnestor), which it mimics.
Response of the male Metisa plana Walker (Lepidoptera: Psychidae) towards female bagworm pheromone lure in wind tunnel bioassays; Hymenopterous parasitoids associated with the bagworms Metisa plana and Mahasena corbetti; The Effective Application Time to Spray Bacillus thuringiensis Subspecies kurstaki for Managing Bagworm, Metisa plana Walker ...