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The head has a pair of long, slender antennae, two large compound eyes and two protuberant ocelli. The labrum is broad, and the frons and the hinder part of the clypeus are fused and form a bulge in a manner unusual for cockroaches. The pronotum is large and covers the head
The male of the species has a distinctive specialization of its median segment, which has a heavy tuft of agglutinated (stuck together) hairs directed toward its head, and a low, hairy ridge across the segment in front of the tuft. [3] The specialization occurs only in one other Parcoblatta species, P. americana, but is "decidedly greater" in P ...
Hair-plates are proprioceptors [1] and provide information to the nervous system about the positional and movement state of the body and legs. Hair plate neurons come in two flavors, one that responds phasically (rapidly adapting) and another that responds tonically (slowly adapting) to transient or maintained deflections of the hairs.
The male is the most slender of the larger pale species in the genus. Its pronotum is relatively long for the genus. [4] It has fully developed tegmina and wings. [4] It has a specialization on the median and first dorsal abdominal segments: on the median segment are two subtriangular, rounded elevations with very heavy tuft of hairs, and a few scattered hairs on the rest of the segment; on ...
The male dorsal coloration of the species is a glossy light brown or reddish brown, while the female is a darker brown. [5] The male's tegmina (outer forewings) extend well beyond the abdomen, and are wider than its pronotum. [4] The female's short tegmina end around the second dorsal segment, and are colored slightly lighter than the rest of ...
Cockroaches are experts at surviving indoors, hiding in kitchen pipes or musty drawers. A new study uses genetics to chart cockroaches' spread across the globe, from humble beginnings in southeast ...
The desert cockroach can gain weight by absorption of water vapor from unsaturated atmospheres above 82.5% relative humidity.Blocking the anus or the dorsal surface with wax does not prevent water vapor uptake, but interference with movements of the mouthparts or blocking the mouth with wax prevents such uptake.
One of the larger cockroaches, Drymaplaneta semivitta is about 20–45mm long [2] [4] and 12–15mm wide. [5] It is a glossy dark brown, with distinctive tan or white coloured translucent stripes along each side of its head. [4] [5] [6] Unlike many cockroaches, it has no vestigial wings. [2] [5] [6]
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