Complex of primary and secondary parasitoids (Hymenoptera: Encyrtidae and Signiphoridae) of Hypogeococcus spp. mealybugs (Hemiptera: Pseudococcidae) in the New World
Author
Triapitsyn, Serguei V.
Department of Entomology, University of California, Riverside, California, 92521, USA; E-mails: serguei. triapitsyn @ ucr. edu (S. V. T.); paul. rugman-jones @ ucr. edu (P. F. R. J.)
serguei.triapitsyn@ucr.edu
Author
Aguirre, María B.
FuEDEI, Simón Bolívar 1559, Hurlingham, Buenos Aires, Argentina; E-mails: glogarzo @ fuedei. org (G. A. L.); redbell _ @ hotmail. com (M. B. A.)
glogarzo@fuedei.org
Author
Logarzo, Guillermo A.
FuEDEI, Simón Bolívar 1559, Hurlingham, Buenos Aires, Argentina; E-mails: glogarzo @ fuedei. org (G. A. L.); redbell _ @ hotmail. com (M. B. A.)
glogarzo@fuedei.org
Author
Hight, Stephen D.
USDA-ARS, 6383 Mahan Dr., Tallahassee, Florida, 32308, USA; E-mail: Stephen. Hight @ ARS. USDA. GOV (S. D. H.)
Author
Ciomperlik, Matthew A.
USDA-APHIS-PPQ-CPHST, Mission Laboratory, 22675 N. Moorefield Rd., Edinburg, Texas, 78541 - 9398, USA; E-mail: Matt. A. Ciomperlik @ aphis. usda. gov (M. A. C.)
Matt.A.Ciomperlik@aphis.usda.gov
Author
Rugman-Jones, Paul F.
Department of Entomology, University of California, Riverside, California, 92521, USA; E-mails: serguei. triapitsyn @ ucr. edu (S. V. T.); paul. rugman-jones @ ucr. edu (P. F. R. J.)
serguei.triapitsyn@ucr.edu
Author
Verle Rodrigues, Jose C.
Center for Excellence in Quarantine & Invasive Species, Agricultural Experimental Station-Río Piedras, Crops and Agro-Environmental Sciences Department, University of Puerto Rico-Mayagüez, 1193 Calle Guayacán, San Juan, Puerto Rico 00926, USA; E-mail: jose _ carlos @ mac. com (J. C. V. R.)
jose_carlos@mac.com
text
Florida Entomologist
2018
2018-09-30
101
3
411
434
http://www.bioone.org/doi/10.1653/024.101.0320
journal article
10.1653/024.101.0320
1938-5102
13260321
Anagyrus tanystis
De Santis, 1964
(
Figs. 37–41
)
Anagyrus tanystis
De Santis 1964: 61−63
.
Type
locality:
Autonomous City
of
Buenos Aires
,
Argentina
.
Anagyrus tanystis
De Santis
:
Triapitsyn et al. 2014b: 221
(key).
Type Material Examined
.
Holotype
female [
MACN
] on slide (
Fig. 37
) labeled: 1. “CAPITAL FEDERAL Col:
A. Zotta
I-II/1913”; 2. [partially printed in red] “
Anagyrus tanystis
Det. De Santis
HOLOTIPO
MUSEO DE LA PLATA
”; 3. [
MACN
type number] “A 89”.
Distribution
. Autonomous City of
Buenos Aires
,
Argentina
(
De Santis 1964
).
Hosts
. Unknown.
Comments
. The
holotype
female of
A. tanystis
is dissected under 1 large square coverslip (
Fig. 37
); it lacks almost the entire flagellum of 1 of the antennae except for about a half of F1. Illustrated here, to facilitate its recognition, are its features (
Figs. 38–41
). This species is known only from a single specimen, which was not examined by
Triapitsyn et al. (2014b)
during preparation of the key to the described species of
Anagyrus
in
Argentina
.
GENETIC ANALYSIS
DNA sequences of all 3 loci (28S,
ITS2
and COI) were successfully obtained for 29 of
30 specimens
.
The
only “shortfall” was the COI of a single specimen (
PR17-254
) from
Argentina
,which failed to amplify de- spite multiple attempts.
Direct-sequencing
of the COI locus also failed for a second specimen from
Argentina
(
PR
17-256) and 3 from
Brazil
(
PR
17-247 through 249) due to co-amplification of a
NUMT
(GenBank accessions
MG748829-832
). However, a valid COI sequence was obtained for each of these specimens by amplicon cloning
.
ML analyses of the concatenated 28S (MG731466-495) and COI (MG731496-524) sequences recovered 3 distinct clades (
Fig. 42
).These 3 clades corresponded to the species
Leptomastidea hypogeococci
,
Anagyrus cachamai
, and
Anagyrus quilmes
. Although discarded for the purpose of phylogenetic inference, sequences of ITS2 (MG731525- 554) identified the same 3 clades.
Leptomastidea hypogeococci
–
DNA sequences of the rRNA loci 28S and
ITS2
were identical across specimens from
Puerto Rico
,
Argentina
, and
Brazil
, with the slight exception that the 28S sequence of
3 specimens
(
PR
17-253 and
PR
17-257 from
Puerto Rico
, and PR17-254 from
Argentina
) harbored a heterozygous peak at position 140 (G or A, rather than just a G).
The Puerto Rican
specimens shared an identical COI haplotype, but on average this differed from the COI of
Brazilian
and
Argentinian
specimens (obtained from cloned amplicons) by 3.7% (average pairwise p-distance = 0.037).
Variation
in COI among
Brazilian
and
Argentinian
specimens was 10-fold lower (average p-distance = 0.003)
.
Anagyrus cachamai
–
DNA sequences of 28S were more or less identical across specimens from
Argentina
and
Paraguay
, with just a separate single base insertion at positon 447 and
451 in
specimens PR17-246 (
Paraguay
) and PR17-252 (
Argentina
), respectively.
ITS2
was more variable, with 26 single nucleotide substitutions, insertions or deletions across
5 specimens
and 695 aligned bases. In addition,
2 specimens
(PR14-212 and PR14-213;
MG731548-548
) differed from the other 3 (
MG731534-536
) with a 29bp deletion (positions 148-176). These
2 specimens
also shared a COI haplotype (
MG731518-519
) that differed from that of the other
3 specimens
(
MG731504-506
) by over 5% (average pairwise p-distance = 0.054). Variation among the latter
3 specimens
was 4-fold lower (average p-distance = 0.013)
.
Figs. 34–36.
Prochiloneurus
spp.
males (34–35,
P. argentinensis
, Loreto
, Misiones, Argentina [photographs courtesy of D. A. Aquino]; 36,
P. narendrani
, Mona
Island, Puerto Rico): 34, habitus; 35, antennae; 36, habitus.
Anagyrus quilmes
– DNA sequences of 28S and ITS2 were identical across all specimens from
Puerto Rico
,
Argentina
,
Brazil
, and
Paraguay
. Eight COI haplotypes were detected, and there was a strong phylogeographic signal in the distribution of these haplotypes (
Fig. 43
). Pairwise divergence between 7 of these haplotypes was typically low (average pairwise p-distance = 0.005), but the remaining haplotype, harbored by PR14-214, differed from all others by over 5% (average pairwise p-distance = 0.054).
BIOLOGICAL CONTROL OF THE
HARRISIA
CACTUS MEALYBUG IN
PUERTO RICO
The biological control program for
Harrisia
cactus mealybug in
Puerto Rico
was advanced with 2 shipments of 2 parasitoid species from South America to the quarantine facility at the University of
Puerto Rico
Center for Excellence in Quarantine & Invasive Species. The species transported to the quarantine facility were
A. cachamai
and
A. lapachosus
. Both parasitoid species accepted the
Puerto Rico
Harrisia
cactus mealybug,and host range tests were initiated. Quarantine host range tests are expected to be completed by spring 2018, and a request for field release should be submitted before summer 2018. In addition, studies on natural enemy population dynamics and parasitoid biological parameters are planned for the 2 quarantined parasitoid colonies from South America, and a newly described parasitoid species already established and attacking the
Harrisia
cactus mealybug in
Puerto Rico
. This project is poised to successfully de- velop the only method that challenges the
Harrisia
cactus mealybug pest before we experience the devastation of cactus biodiversity in
Puerto Rico
.