WAcalymma vinctum is a species of skeletonizing leaf beetle in the family Chrysomelidae. It is found in North America.
WAcmaeodera macra is a species of metallic wood-boring beetle in the family Buprestidae. It is found in North America.
WAcmaeodera miliaris is a species of metallic wood-boring beetle in the family Buprestidae. It is found in Central America and North America.
Actinus imperialis is a beetle of the Staphylinidae family, Staphylinidae subfamily.
WAmphicerus teres is a species of horned powder-post beetle in the family Bostrichidae. It is found in North America.
WAnchonoderus quadrinotatus is a species of ground beetle in the family Carabidae. It is found in North America.
WAristobia voeti is a species of beetle in the family Cerambycidae. It was described by James Thomson in 1878. Although the name was originally spelled as "voetii", this spelling was not in use between 1894 and 2014, and therefore the spelling "voeti" must be preserved under ICZN Article 33.3.1, as this is the spelling that is in prevailing usage. It is known from Laos, China and Myanmar.
WBatocera davidis is a species of beetle from the family Cerambycidae discovered by Leon Fairmaire in 1878. The beetle occurs in China, Taiwan, and Vietnam.
WBembidion versutum is a species of ground beetle in the family Carabidae. It is found in North America.
WCereopsius alboguttatus is a species of beetle in the family Cerambycidae. It was described by C. Waterhouse in 1878. It is known from Borneo.
WCeroplesis poggei is a species of beetle in the family Cerambycidae. It was described by Harold in 1878. It is known from Angola, the Democratic Republic of the Congo, the Republic of the Congo, Mozambique, Uganda, Tanzania, Zimbabwe, and Zambia.
WThe Delta green ground beetle is a species of ground beetle restricted to a small region within Solano County, California. Its color is a metallic-green, usually with bronze spots on its elytra, though some lack these spots. The lack or reduction of circular pits on the elytra helps distinguish it from other ground beetles. Typical adults are about a quarter-inch (0.6 cm) in length.
WDerobrachus asperatus is a species of beetle in the family Cerambycidae. It was described by Bates in 1878.
WDineutus angustus is a species of whirligig beetles in the family Gyrinidae. It is found in North America.
WDorcadion crassipes is a species of beetle in the family Cerambycidae. It was described Ballion by 1878.
WLeucographus variegatus is a species of beetle in the family Cerambycidae. It was described by Waterhouse in 1878.
WLeuconitocris leucostigma is a species of beetle in the family Cerambycidae. It was described by Harold in 1878. It has a wide distribution in Africa.
WLichenophanes californicus is a species of horned powder-post beetle in the family Bostrichidae. It is found in North America.
WMicrapate dinoderoides is a species of horned powder-post beetle in the family Bostrichidae. It is found in North America.
WMordella ornata is a species of beetle in the family Mordellidae, which belongs to the superfamily Tenebrionoidea. It was discovered in 1878.
WMyagrus hynesi is a species of beetle in the family Cerambycidae, and the type species of its genus. It was described by Francis Polkinghorne Pascoe in 1878. It is known from Borneo, India, Sumatra and Malaysia.
WPeltodytes is a genus of water beetle which is native to the Nearctic, Europe, the Near East, and North Africa. Peltodytes can generally be differentiated from the similar Haliplus by the presence of a pair of spots on the posterior margin of the pronotum. The genus Peltodytes contains the following species:Peltodytes alluaudi Guignot, 1936 Peltodytes bradleyi Young, 1961 Peltodytes caesus (Duftschmid, 1805) Peltodytes callosus (LeConte, 1852) Peltodytes congoensis Zimmermann, 1924 Peltodytes coomani Peschet, 1923 Peltodytes darlingtoni Young, 1961 Peltodytes dauricus Zimmermann, 1924 Peltodytes dietrichi Young, 1961 Peltodytes dispersus Roberts, 1913 Peltodytes dunavani Young, 1961 Peltodytes duodecimpunctatus (Say, 1823) Peltodytes edentulus (LeConte, 1863) Peltodytes festivus (Wehncke, 1876) Peltodytes floridensis Matheson, 1912 Peltodytes intermedius (Sharp, 1873) Peltodytes lengi Roberts, 1913 Peltodytes litoralis Matheson, 1912 Peltodytes mexicanus (Wehncke, 1883) Peltodytes muticus (LeConte, 1863) Peltodytes nodieri Guignot, 1936 Peltodytes oppositus Roberts, 1913 Peltodytes ovalis Zimmermann, 1924 Peltodytes pedunculatus (Blatchley, 1910) Peltodytes pekinensis Vondel, 1992 Peltodytes quadratus Régimbart, 1895 Peltodytes rotundatus (Aubé, 1836) Peltodytes sexmaculatus Roberts, 1913 Peltodytes shermani Roberts, 1913 Peltodytes simplex (LeConte, 1852) Peltodytes sinensis (Hope, 1845) Peltodytes speratus Régimbart, 1906 Peltodytes sumatrensis Régimbart, 1885 Peltodytes tamaulipensis Young, 1964 Peltodytes tortulosus Roberts, 1913
WProstephanus truncatus is commonly referred to as "larger grain borer" (LGB) with reference to the related Rhyzopertha dominica, which is relatively smaller in length, hence is referred to as the "lesser grain borer". P. truncatus is about 6 mm (0.24 in) long as compared to 3 mm (0.12 in) long in Rh. dominica. At optimum conditions of 80% relative humidity and 32 °C (90 °F), and available food, P. truncatus completes its lifecycle within 27 days. It is a serious pest of dried grains, especially maize and dried cassava in West Africa. This beetle is believed to have been introduced into West Africa through food aid from America. It reached Africa through Tanzania in the early 1970s.
WScobicia bidentata is a species of horned powder-post beetle in the family Bostrichidae. It is found in North America.
WThe telephone-pole beetle is a beetle native to the eastern United States, and the only living representative of the otherwise extinct family Micromalthidae.
WTetraopes texanus is a species of beetle in the family Cerambycidae. It was described by Horn in 1878. It is known from Mexico and the United States.
WThylactus zuberhoferi is a species of beetle in the family Cerambycidae. It was described by James Thomson in 1878. It is known from the Ivory Coast, the Central African Republic, Cameroon, and Togo.
WTragocephala mima is a species of beetle in the family Cerambycidae. It was described by James Thomson in 1878. It is known from Tanzania, Malawi, Zambia, Mozambique, Kenya, and Zimbabwe.
WTrogoderma variabile, the warehouse beetle, is a species of carpet beetle in the family Dermestidae. It is found in Europe, Asia, Central America, North America and Oceania.
WTypocerus balteatus is a species of flower longhorn in the beetle family Cerambycidae. It is found in North America.
WXylobiops texanus is a species of horned powder-post beetle in the family Bostrichidae. It is found in the Caribbean Sea, Central America, and North America.