PMID- 26931091
OWN - NLM
STAT- MEDLINE
DCOM- 20170925
LR  - 20170925
IS  - 1744-7917 (Electronic)
IS  - 1672-9609 (Linking)
VI  - 24
IP  - 4
DP  - 2017 Aug
TI  - Comparative morphometric and chemical analyses of phenotypes of two invasive 
      ambrosia beetles (Euwallacea spp.) in the United States.
PG  - 647-662
LID - 10.1111/1744-7917.12329 [doi]
AB  - The polyphagous shot hole borer (PSHB), Euwallacea sp., was first detected in 
      2003 in Los Angeles County, California, USA. Recently, this invasive species has 
      become a major pest of many hardwood trees in urban and wildland forests 
      throughout southern California. PSHB is nearly identical in morphology and life 
      history to the tea shot hole borer (TSHB), Euwallacea fornicatus, an invasive 
      pest of hardwoods in Florida, USA and many other parts of the world. However, 
      molecular studies have suggested that the taxa are different species. We 
      conducted morphometric and chemical analyses of the phenotypes of Euwallacea sp. 
      collected in southern California (Los Angeles County) and E. fornicatus collected 
      in Florida (Miami-Dade County). Our analyses indicated that PSHB has 3 larval 
      instars. The third larval instar was separated from the first 2 instars by head 
      capsule width with 0 probability of misclassification. The body length, head 
      width, and pronotal width of PSHB adult males were significantly less than those 
      of females. Head width and pronotal width of female PSHB were significantly less 
      than those of female TSHB. In contrast, body length, and ratio of body length to 
      pronotal width of female PSHB were significantly greater than those of female 
      TSHB. However, females of these 2 species could not be separated completely by 
      these 4 measurements because of the overlapping ranges. Cuticular hydrocarbons 
      detected in both species were exclusively alkanes (i.e., n-alkanes, 
      monomethylalkanes, dimethylalkanes, and trimethylalkanes). Cuticular hydrocarbon 
      profiles of PSHB males and females were similar, but they both differed from that 
      of TSHB females. Cuticular hydrocarbons of PSHB were predominantly internally 
      branched dimethylalkanes with backbones of 31 and 33 carbons, whereas cuticular 
      hydrocarbons of TSHB females were dominated by internally branched 
      monomethylalkanes and dimethylalkanes with backbones of 28 and 29 carbons. 
      Multiple compounds within these classes appear to be diagnostic for PSHB and 
      TSHB, respectively.
CI  - (c) 2016 Institute of Zoology, Chinese Academy of Sciences.
FAU - Chen, Yigen
AU  - Chen Y
AD  - Department of Entomology and Nematology, University of California, Davis, USA.
FAU - Dallara, Paul L
AU  - Dallara PL
AD  - Department of Entomology and Nematology, University of California, Davis, USA.
FAU - Nelson, Lori J
AU  - Nelson LJ
AD  - USDA Forest Service, Pacific Southwest Research Station, Davis, USA.
FAU - Coleman, Tom W
AU  - Coleman TW
AD  - USDA Forest Service, Forest Health Protection, San Bernardino, California, USA.
FAU - Hishinuma, Stacy M
AU  - Hishinuma SM
AD  - Department of Entomology and Nematology, University of California, Davis, USA.
FAU - Carrillo, Daniel
AU  - Carrillo D
AD  - Tropical Research and Education Center, University of Florida, Homestead, 
      Florida, USA.
FAU - Seybold, Steven J
AU  - Seybold SJ
AD  - USDA Forest Service, Pacific Southwest Research Station, Davis, USA.
LA  - eng
PT  - Comparative Study
PT  - Journal Article
DEP - 20160615
PL  - Australia
TA  - Insect Sci
JT  - Insect science
JID - 101266965
RN  - 0 (Alkanes)
RN  - 0 (Hydrocarbons)
SB  - IM
MH  - Alkanes
MH  - Animals
MH  - California
MH  - Female
MH  - Florida
MH  - Hydrocarbons/*analysis/*chemistry
MH  - *Integumentary System
MH  - Introduced Species
MH  - Larva/anatomy & histology/growth & development
MH  - Male
MH  - Phenotype
MH  - Weevils/*anatomy & histology/*chemistry/classification/growth & development
OTO - NOTNLM
OT  - Euwallacea fornicatus
OT  - Scolytidae
OT  - cuticular hydrocarbons
OT  - larval instars
OT  - polyphagous shot hole borer
OT  - tea shot hole borer
EDAT- 2016/03/05 06:00
MHDA- 2017/09/26 06:00
CRDT- 2016/03/03 06:00
PHST- 2015/12/31 00:00 [revised]
PHST- 2016/01/11 00:00 [accepted]
PHST- 2016/03/05 06:00 [pubmed]
PHST- 2017/09/26 06:00 [medline]
PHST- 2016/03/03 06:00 [entrez]
AID - 10.1111/1744-7917.12329 [doi]
PST - ppublish
SO  - Insect Sci. 2017 Aug;24(4):647-662. doi: 10.1111/1744-7917.12329. Epub 2016 Jun 
      15.