Hydaticus pacificus, is a species of predaceous diving beetle found in South and South East Asia.[1][2][3]
Three subspecies identified.
The nominate subspecies pacificus shows following features.[4]
Body oblong-oval, moderately convex and broadest distinctly behind middle. Body length is about 14.1 to 16.6 mm. Head yellowish to reddish-brown in color. Some extended dark brown to black patches found along and between eyes and on vertex. Head with fine dense punctation and scattered stronger punctures and without microreticulation. Pronotum yellowish to reddish-brown with similar patches. Elytron dark brown to black with yellowish to reddish-brown. Elytra with very fine punctation and scattered stronger punctures; with fine microreticulation. Pronotum consists with very fine, dense punctation and scattered stronger punctures with traces of very fine microreticulation. There is a postmedian mark connected to lateral band, but sometimes reduced to a small spot. Ventrum dark reddish-brown to black, with yellowish to reddish-brown pronotum and epipleura regions. Ventrum with moderately dense punctation with fine microreticulation. Antennae yellowish to reddish-brown. First two pairs of legs are reddish-brown, whereas hind legs are dark-brown to black in color.[4]
The subspecies andamanicus has a total length of about 13.1 to 15.5 mm. Much darker coloration on head and pronotum than ssp. pacificus. Elytral markings and body colors similar to ssp. pacificus. Hind tarsi more slender with ciliated metatarsomeres. The subspecies conspersus has a total body length of 14.5 to 16.6 mm. Dark coloration on head less extended. Pale elytral markings are more extended on lateral sides with many dark irrorations. The subspecies lunatus has a total length of 14.3 to 16.8 mm. There is a distinctly enlarged pale postmedian mark on elytron. Subspecies discindens has an oblong-oval, moderately convex body which is broadest distinctly behind middle. Total length is 13.1 to 16.5 mm. Pronotum with a complete dark brown to black longitudinal band in middle.[4]
After mating, adult female has been observed to deposit eggs singly on the surface of the Salvinia molesta. Newly laid eggs are white in color. Eggs are long ellipsoid with a slight convexity at the ventral side. Egg is about 2.2 mml long.[5]
Hydaticus pacificus, is a species of predaceous diving beetle found in South and South East Asia.
Hydaticus pacificus adolah kumbang dari famili Dytiscidae. Spesies ko juo marupokan bagian dari ordo Coleoptera, kelas Insecta, filum Arthropoda, dan kingdom Animalia.
Larva kumbang iko biasonyo panjangnyo sekitar 1–5 cm.
Hydaticus pacificus adolah kumbang dari famili Dytiscidae. Spesies ko juo marupokan bagian dari ordo Coleoptera, kelas Insecta, filum Arthropoda, dan kingdom Animalia.
Hydaticus pacificus is een keversoort uit de familie waterroofkevers (Dytiscidae). De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1838 door Aubé.[1]
Bronnen, noten en/of referenties
Hydaticus pacificus là một loài bọ cánh cứng trong họ Bọ nước. Loài này được Aubé miêu tả khoa học năm 1838.[1]
Bài viết liên quan đến phân họ côn trùng cánh cứng Dytiscinae này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
Hydaticus pacificus là một loài bọ cánh cứng trong họ Bọ nước. Loài này được Aubé miêu tả khoa học năm 1838.
