Valid Names Results
Oracella acuta (Lobdell, 1930) (Pseudococcidae: Oracella)Nomenclatural History
- Pseudococcus acutus Lobdell 1930: 213. Type data: U.S.A.: Mississippi, Ocean Spring, on Pinus sp.. Holotype, female, Type depository: Washington: United States National Entomological Collection, U.S. National Museum of Natural History, District of Columbia, USA; accepted valid name
- Oracella acuta (Lobdell, 1930); Ferris 1950b: 113. change of combination
Common Names
- acute mealybug Koszta1996
- Loblolly pine mealybug Lambdi2022
- cochinilla harinosa del pino Lambdi2022
- nantah oracella Lambdi2022
Ecological Associates
Hosts:
Families: 1 | Genera: 1
- Pinaceae
- Pinus caribaea | Lambdi2022
- Pinus echinata | Koszta1996
- Pinus elliottii | Lambdi2022
- Pinus massoniana | Lambdi2022
- Pinus palustris | BenDov1994 Ferris1950a Koszta1996
- Pinus taeda | ClarkeNeDe1992 Koszta1996
- Pinus thunbergii | Lambdi2022
- Pinus virginiana | Koszta1996
Foes:
Families: 2 | Genera: 4
- Encyrtidae
- Acerophagus coccois | PanZeCh2004 SunClDe2004
- Anagyrus dactylopii | PanZeCh2004 RenChYu2000
- Zarhopalus debarri | SunClDe2004
- Platygastridae
- Allotropa oracellae | MasnerSuCl2004
Geographic Distribution
Countries: 2
- China | Koszta1996
- Guangdong (=Kwangtung) | Lambdi2022
- Guangxi (=Kwangsi) | Lambdi2022
- Shanxi (=Shansi) | Xie1998
- United States
- Florida | Koszta1996
- Georgia | ClarkeNeDe1992 Koszta1996
- Kentucky | Koszta1996
- Louisiana | Koszta1996
- Maryland | Koszta1996
- Mississippi | BenDov1994 Lobdel1930
- North Carolina | Koszta1996
- South Carolina | Koszta1996
- Texas | BenDov1994 Ferris1950b
- Texas | Koszta1996
- Virginia | Koszta1996
Keys
- MillerMi2002a: pp.971 ( Adult (F) ) [Key to Species of Dysmicoccus, Oracella and Paradoxococcus of the Gulf States Region (Adult Remales)]
- Koszta1996: pp.141 ( Adult (F) ) [Northeastern North USA]
Remarks
- Systematics: Adult female O. acuta can be distinguished from all other known pine-infesting pseudococcids because they each produce a whitish ‘resin cell’, 2–3 mm long and open at one end, on the stem at the base of the needles or under the bark. The pinkish abdomen of the insect often protrudes from the open end of the cell. (Lambdin, 2022)
- Structure: Adult females are pink and coated with a white powdery wax secretion. (Lambdin, 2022) Adult males are pinkish, with well-developed antennae and legs but no mouthparts; those in the overwintering generation are usually apterous, while males of subsequent generations each possess one pair of wings. (Lambdin, 2022)
- Biology: Occurring under bark, on twigs and at base of needles. In USA, Maryland and Virginia it overwinters as second instars. In USA, Virginia it develops two or three annual generations, while four to five in USA, Georgia (Kosztarab, 1996).
- Economic Importance: Infestations of this mealybug, appeared on Pinus taeda in Georgia, USA, following five applications of pyrethroids (Clarke et al., 1992). Yang (in Kosztarab, 1996) reported that this species has been introduced into China, where it is a serious pest. In Asia, the suitable climate for O. acuta appeared to extend beyond its current range. Based on historical data, large areas of China, Vietnam, Laos, Myanmar, Bhutan, Bangladesh, Philippines, Sri Lanka, and the south of India, among others, could be expected to be invaded due to highly suitable climatic conditions for the mealybug. (Deng, et al., 2017)
- General Remarks: Description and illustration of adult female by Lobdell (1930), Ferris (1950b) and by Kosztarab (1996).
Illustrations
Citations
- BenDov1994: catalog, 259-260
- ChenVaYo2017: climate change, distribution, ecology, 719–732
- ClarkeDeWa1990: chemical control, distribution, host, 1-14
- ClarkeNeDe1992: biological control, chemical control, distribution, economic importance, host, 1246-1252
- ClarkeSuDe1996: biological control, distribution, host, 666
- ClarkeYuCh2010: biological control, distribution, economic importance, host, 129-139
- Ferris1950b: description, distribution, host, illustration, taxonomy, 113-114
- Hodgso2020: illustration, male, 10
- KondoWa2022a: distribution, host, list, 24
- Koszta1996: description, distribution, host, illustration, taxonomy, 141-143
- Lambdi2022: biology, diagnosis, distribution, host, illustration, natural enemies, taxonomy, 157-159
- LiSuLu1994: distribution, host, life history, 52-57
- Lobdel1930: description, distribution, host, illustration, taxonomy, 213-214, 226
- MasnerSuCl2004: biological control, distribution, 600-602
- MillerMi2002a: taxonomy, 971
- PanZeCh2004: biological control, distribution, host, 101-104
- PanZeYe2002: biological control, 36-38
- RenChYu2000: biological control, economic importance, 140-143
- SunClDe2004: biological control, distribution, host, 11-22
- SunClDe2004a: biological control, 136-139
- SunZh2003: chemical control, distribution, host, 466-472
- Tang1995: distribution, ecology, host, life history, 31-36
- TangHuTo2001: life history, 46-48
- TangToHu2000: ecology, life history, 36-39
- Tao1999: distribution, host, taxonomy, 21
- Xie1998: description, distribution, host, illustration, taxonomy, 82-83
- XuQiGe2012: dispersal, distribution, list of species, A368
- Zhang1997: distribution, economic importance, host, life history, 40-45
