Graminaseius polisensis (Schicha & Corpus-Raros)

Kreiter, Serge, Bopp, Marie-Charlotte, Douin, Martial, Nguyen, Duc Tung & Wyckhuys, Kris, 2020, Phytoseiidae of Vietnam (Acari: Mesostigmata) with description of a new species, Acarologia 60 (1), pp. 75-110 : 90-91

Graminaseius polisensis (Schicha & Corpus-Raros)

Amblyseius polisensis Schicha & Corpuz-Raros 1992: 39 ; Moraes et al. 2004a: 47.

Graminaseius polisensis, Chant & McMurtry 2004a: 219 ; 2007: 85.

Specimens examined: Muoi in P6 plot (aasl 66 m, lat. 21°54’55” N, long. 104°38’22” E), 1 ♀ + 1 ♂ on Xanthium strumarium (Asteraceae) , 20/VII/2017.

Remarks: This species was described from several specimens collected on various plants in Philippines.

The biology of G. polisensis remains totally unknown and even the life type of this species and of species of Graminaseius are unknown.

This species was already known from Vietnam from a previous survey ( Nguyen et al. 2016). Details of locations were provided in this paper though no measurements were provided on the collected specimens. Measurements of specimens collected in this study are provided in table 9 for the single female and the single male and compared with measurements obtained from specimens collected in the Philippines, i.e., country of the original description. Measurements obtained for Vietnamese specimens (both damaged) collected during this study agree well with most obtained from female and male type material from Philippines, most of the setae being shorter in Vietnamese specimens.

Tables

Table 9 Character measurements of one adult female and one adult male ofGraminaseius polisensiscollected in this study and those reported in previous studies (localities followed by the number of specimens measured).

	♀		♂
Characters	Vietnam Holotype 1, this study Philippines, 1		Vietnam Paratype 1, this study Philippines, 1
Dsl	325	380	250	299
Dsw at s4 level	205	216	166	179
j1	15	19	15	16
j3	Broken	32	23	25
j4	10	14	10	12
j5	10	14	10	12
j6	Broken	18	10	12
J2	Broken	18	10	15
J5	Broken	10	8	8
r3	15	16	Broken	-
R1	14	14	10	-
s4	Broken	51	Broken	37
S2	Broken	10	18	19
S4	Broken	10	13	13
S5	Broken	10	13	13
z2	15	19	13	16
z4	13	19	13	16
z5	8	11	Broken	12
Z1	15	19	10	12
Z4	Broken	62	Broken	50
Z5	58	57	35	39
st1-st1	48	-	43	-
st2-st2	63	82	53	82
st3-st3	70	-	55	-

Sources of measurements – For ♀♀: Philippines: Schicha & Corpuz-Raros (1992), probably measurements of the holotype female. For ♂♂: Philippines: Schicha & Corpuz-

Raros (1992), probably measurements of the paratype male; -: not provided.