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 LABORATORIO DI ENTOMOLOGIA AGRARIA
Boll. Lab. Ent. agr. Filippo Silvestri 61: 71-77




              RICCARDO JESU                        GENNARO VIGGIANI
            Dipartimento di Entomologia e Zoologia Agraria «Filippo Silvestri»
               Università degli Studi di Napoli «Federico II», Portici, Italia




 The Anagrus Haliday (Hymenoptera: Mymaridae) from Yemen,
         with description of two new species and note
         on Gonatocerus vanharteni Jesu et Viggiani
    Abstract – Seven species of Anagrus are recorded from Yemen; two of them are new and
here described and figured. A provisional key to their identification is given.

   Key words: Anagrus breviclavatus, Anagrus longifrangiatus, Yemen, egg parasitoid.



                                  INTRODUCTION

   Among the mymarid material received for identification by Dr. Antonius
van Harten, collected in Yemen by Malaise or light-traps, we identified
seven Anagrus species, two of which are undescribed.
   The type specimens of the new species will be preserved at Dipartimento
di Entomologia e Zoologia Agraria «Filippo Silvestri», Università degli
Studi di Napoli «Federico II», Portici, Italy.


                           Anagrus scassellatii Paoli
   This species of Anagrus, described by PAOLI (1930) from Somalia and re-
ported from Cape Verde Islands (VIGGIANI & JESU, 1995), is here recorded
from Yemen for the first time.

   Material examined. 1 &, Yemen, Ta’izz, X.1998, in light-trap, coll. A. van Harten & A.
Awad; 1 &, Yemen, Al Kowd, VIII.1999, in light-trap, coll. A. van Harten & S. Al Haruri;
                                         – 72 –

1 &, Yemen, Ta’izz, VIII.1999, in light-trap, coll. A. van Harten & A. Awad; 6 &, Yemen,
Al Kowd, I.2000, in light-trap, coll. A. van Harten & S. Al Haruri; 3 &, Yemen, Al Kowd,
II.2000, in light-trap, coll. A. van Harten & S. Al Haruri; 1 &, Yemen, Al Kowd, X.2000, in
light-trap, coll. A. van Harten & S. Al Haruri; 1 &, Yemen, Al Kowd, XI.2000, in light-trap,
coll. A. van Harten & S. Al Haruri; 1 &, Yemen, Al Kowd, XII.2000, in light-trap, coll. A.
van Harten & S. Al Haruri; 31 &, Yemen, Ar Rujum, 16.X.2000-15.I.2001, in Malaise-trap,
coll. A. van Harten & A.M. Hager.



                  Anagrus proscassellatii Viggiani et Jesu
   This species has been described by VIGGIANI & JESU (1995) from Cape
Verde Islands.

    Material examined. 4 &, Yemen, Ar Rujum, 16.X.2000-15.I.2001, in Malaise-trap, coll.
A. van Harten & A.M. Hager.



                     Anagrus sensillatus Viggiani et Jesu
   Until now this species is recorded only from Cape Verde Islands (VIG-
GIANI & JESU, 1995).


    Material examined. 6 &, Yemen, Ar Rujum, 16.X.2000-15.I.2001, in Malaise-trap, coll.
A. van Harten & A.M. Hager.



                 Anagrus brevifuniculatus Viggiani et Jesu
    We refer some specimens from Yemen to this species originally described
from Cape Verde Islands (VIGGIANI & JESU, 1995), even if they show some
variations concerning the wing and fringe ratio and the presence or absence
of linear sensillum on F4.

    Material examined. 3 &, Yemen, Ta’izz, X.1998, in light-trap, coll. A. van Harten & A.
Awad; 1 &, Yemen, Ta’izz, VIII.1999 in light-trap, coll. A. van Harten & A. Awad; 7 &,
Yemen, Al Kowd, IX.1999, in light-trap, coll. A. van Harten & S. Al Haruri; 1 &, Yemen,
Al Kowd, I.2000, in light-trap, coll. A. van Harten & S. Al Haruri; 2 &, Yemen, Al Kowd,
II.2000, in light-trap, coll. A. van Harten & S. Al Haruri; 2 &, Yemen, Al Kowd, XI.2000,
in light-trap, coll. A. van Harten & S. Al Haruri; 6 &, Yemen, Ar Rujum, 16.X.2000-
15.I.2001, in Malaise-trap, coll. A. van Harten & A.M. Hager.



                  Anagrus prounilinearis Viggiani et Jesu
  This species was originally described from Cape Verde Islands (VIGGIANI
& JESU, 1995). According to a handwriting note by Triapisyn & Chiappini
                                       – 73 –

on the label of the type material, A. prounilinearis should be considered a
junior synonym of Anagrus (Paranagrus) optabilis Perkins.

   Material examined. 5 &, Yemen, Ta’izz, VIII.1999, in light-trap, coll. A. van Harten &
A. Awad; 1 &, Yemen, Ta’izz, VIII.2000, in light-trap, coll. A. van Harten & A.R. Al
Yarimi; 1 &, Yemen, Lahj, IX.2000, in Malaise-trap, coll. A. van Harten & A. Sallam; 2 &,
Yemen, Ar Rujum, 16.X.2000-15.I.2001, in Malaise-trap, coll. A. van Harten & A.M. Hager.



                       Anagrus breviclavatus sp. nov.
   Female. Body mainly brownish, with metasoma and ventral part of
mesosoma yellowish; head and antennae brownish, with scape, pedicel and
F1 lighter. Fore wing hyaline, slightly infuscated below venation; legs yellow
with last tarsomere slightly darker. Length: 0.65 mm.
   Antenna (Fig. I, 1) with scape 3 times longer than pedicel, the latter
twice F1; segments F2 to F6 similar in shape, subequal in length and re-
spectively 5-4-4-3-2.6 times longer than wide with F4-F6 slightly increasing
in width; club 3 times as long as wide, 4/5 as scape length and shorter than
F5-F6 combined (25:31). Linear sensilla as follows: 1 on F3-F5, 2 on F6, 3
on club. Mesosoma a trifle shorter than metasoma and with a pair of setae
on scapulae and 2 on axillae, the latter 2/3 as long as the first one. Fore
wing (Fig. I, 2) narrowed and with discal blade apically curved, interely
covered with setae; wing ratio: 7.5; longest marginal setae of the fringe 2.5
times than discal width. Veins as in Fig. I, 3. Hind wing with ratio 23.3 and
with the longest marginal setae of the fringe 6.3 longer than the discal
width. Legs with mid and hind tibiae as long as corresponding tarsi; hind
basitarsomere as long as each subsequent segment. Metasoma 1.4 times as
long as wide; ratio ovipositor/hind tibia: 1.2.

    Material examined. Holotype, &, Yemen, Ar Rujum, 16.X.2000-15.I.2001, in Malaise-
trap, coll. A. van Harten & A.M. Hager. Paratypes, 3 &, same data of holotype.


   Comments. The new species belongs to the subgenus Anagrus s.st.
(CHIAPPINI ET AL., 1996) appears close related to Anagrus sensillatus Viggiani
et Jesu (1995) and Anagrus scassellatii Paoli (1930). From A. sensillatus it
can be distinguished mainly for having 1 linear sensillum on F3-F5 and 2
on F6 (F2-F6 with 1-2 linear sensilla in A. sensillatus), discal blade nar-
rowed, curved apically (widely expanded in A. sensillatus) and gaster 1.4
longer than wide (2.5 in A. sensillatus).
   The second species differs from A. breviclavatus sp. nov. for having the
discal blade with a glabrous area, 2 linear sensilla on F3-F6 and club
longer than scape.
   The new species is also close to the Chinese species Anagrus (A.) setosus
                                         – 74 –




Fig. I - Anagrus breviclavatus sp. nov. – 1. Antenna. 2. Fore wing. 3. Particular of veins.


Chiappini et Nai-Quan (CHIAPPINI & NAI-QUAN, 1998), but this species has 1
linear sensillum on F3 and 2 on F4-F6 and club longer than scape.


                       Anagrus longifrangiatus sp. nov.
   Female. Body yellowish, with metasoma and head brownish; antennae
with scape and pedicel yellowish, while subsequent segments increasing in
dark. Fore wing hyaline, slightly infuscated below venation; legs yellowish
with last tarsus slightly darker. Ovipositor with the extruded part darker.
Length: 0.45 mm.
   Antenna (Fig. II, 1) with scape 1.6 times longer than pedicel, this latter
                                         – 75 –




Fig. II - Anagrus longifrangiatus sp. nov. – Female. 1. Antenna. 2. Fore wing. 3. Particular
          of veins. – Male. 4. Genitalia.


is twice F1, pedicel as long as F2 and longer than F3, F4-F5-F6 slightly in-
creasing in size, with F4 and F5 3 times longer than wide, F6 a trifle
shorter; club 3 times longer than wide, 1.6 longer than scape and as long as
F5-F6 combined. Linear sensilla on F5 (1), F6 (2) and club (3). Mesosoma
shorter than metasoma (35:45) and with 1 pair of small and subequal setae
on scapulae and axillae. Fore wing (Fig. II, 2) with 2 rows of discal cilia
which become 4 in apical part of the blade; wing ratio: 9; longest marginal
setae of the fringe 3.4 longer than the discal width. Veins as in Fig. II, 3.
Hind wing subequal the fore one (43:45), wing ratio: 21.5 and with longest
                                              – 76 –

marginal setae of the fringe 6.5 longer than the discal width. Legs with mid
and hind basitarsi subequal to each subsequent segment. Metasoma ovate,
1.3 times as long as wide; ovipositor/hind tibia ratio: 1.2-1.4.

    Male. Similar to the female but darker. Antenna with pedicel roundish,
as long as F1, this latter 1.75 times as long as wide; subsequent flagellar
segments nearly 3 times as long as wide, all rectangular in shape except the
last one which is tapering at apex; each flagellar segment at least with 2 li-
near sensilla. Genitalia (Fig. II, 4) 0.075 mm in length, as in other species
of atomus-group (VIGGIANI, 1970).

     Material examined. Holotype, &, Yemen, Ar Rujum 16.X.2000-15.I.2001, in Malaise-
trap, coll. A. van Harten & A.M. Hager. Allotype, (, Yemen, Ta’izz VIII. 1999, in light-
trap, coll. A. van Harten & A. Awad. Paratypes: 14 &, same data of holotype; 7 &, Yemen,
Lahj XII. 2000, in Malaise-trap, coll. A. van Harten & A. Sallam; 2 &, Yemen, Lahj X.
2000, in Malaise-trap, coll. A. van Harten & A. Sallam; 1 &, Yemen, Lahj XII. 1999, in
Malaise-trap, coll. A. van Harten & A. Sallam; 1 &, Yemen, Ta’izz XI. 1999, in light-trap,
coll. A. van Harten & A. Awad; 1 &, Yemen, Ta’izz VIII. 1999, in light-trap, coll. A. van
Harten & A. Awad.

    Comments. A. longifrangiatus belongs to the subgenus Anagrus s.st.
(CHIAPPINI ET AL., 1996). The new species is close to Anagrus capensis
Hedqvist (1960) and Anagrus aegyptiacus Soyka (1950). The first species
can be distinguished from A. longifrangiatus mainly for having fore wing
with dense discal ciliae, wing ratio 4.75 and longest marginal setae of the
fringe 1.25 times longer than the discal width. A. aegyptiacus differs from
A. longifrangiatus for having subconical metasoma, 1.5 as long as meso-
soma and ovipositor/hind tibia ratio 1.9-2.1.

    Provisional key for the identification of the Anagrus species (females) from Yemen

1       - Disc of fore wing, just behind the stigmal vein, with one row of setae…………………………. 2
        - Disc of fore wing, just behind the stigmal vein, with more than one row of setae……………..3
2 (1)   - F4 to F6 with linear sensilla……………………………………….. proscassellatii Viggiani et Jesu
        - F3 to F6 with linear sensilla……………………………………….. prounilinearis Viggiani et Jesu
3 (1)   - F4 less than 2.5 times as long as wide…………………………..brevifuniculatus Viggiani et Jesu
        - F4 at least 2.5-3 times as long as wide……………………………………………………………… 4
4 (3)   - Linear sensilla. from F2-F3 to F6…………………………………………………………………… 5
        - Only F5-F6 with linear sensilla……………………………………………….longifrangiatus sp. n.
5 (4)   - Linear sensilla from F2 to F6……………………………………………sensillatus Viggiani et Jesu
          Linear sensilla from F3 to F6…………………………………………………………………………6
6 (5)   - F3 to F6 with 2 linear sensilla and club longer than scape…………………….. scassellatii Paoli
        - F3 to F5 with 1 linear sensillum, 2 on F6 and club shorter than scape…… breviclavatus sp.n.



                    Gonatocerus vanharteni Jesu et Viggiani
    To the original descriptions of this species (JESU & VIGGIANI, 2004) we
                                          – 77 –

add that the type specimens have been preserved in the collection of Di-
partimento di Entomologia e Zoologia Agraria «Filippo Silvestri», Univer-
sità degli Studi di Napoli «Federico II», Portici, Italy.


                                     REFERENCES
CHIAPPINI, E., TRIAPITSYN, S.V. & DONEV, A. – 1996 – Key to the Holarctic species of Anagrus
    Haliday (Hymenoptera: Mymaridae) with a review of the Nearctic and Palaearctic (other
    than European) species and descriptions of a new taxa. – Journal of Natural History 30:
    551-595.
CHIAPPINI, E. & NAI-QUAN, L. – 1998 – Anagrus (Hymenoptera: Mymaridae) of China, with
    descriptions of nine new species. – Ann. Entomol. Soc. Am. 91 (5): 549-571.
HEDQVIST, K.J. – 1960 – Hymenoptera (Chalcidoidea) Mymaridae. – South African Animal
    Life: Results of the Lund University Expedition in 1950-1951, 7: 424-433.
JESU, R. & VIGGIANI, G. – 2004 – Description of a new species of Gonatocerus Nees (Hy-
    menoptera: Chalcidoidea: Mymaridae) from Yemen. – Boll. Lab. Ent. agr. Filippo Sil-
    vestri 59 (2003): 79-82.
PAOLI, G. – 1930 – Un Mimaride nuovo della Somalia (Anagrus scassellatii Paoli). – Mem.
    Soc. Ital. Entom. 9: 228-245.
SOYKA, W. – 1950 – New and known Alaptids and Mymarids from Egypt. – Bull. Soc.
    Fouad.ier Ent. 34: 121-131.
VIGGIANI, G. – 1970 – Sul valore tassinomico dell’organo copulatore nei Mimaridi del genere
    Anagrus Hal. Ricerche sugli Hymenoptera Chalcidoidea. XXIV. – Boll. Lab. Ent. agr.
    Filippo Silvestri 28: 10-18.
VIGGIANI, G. & JESU, R. – 1995 – New species of Mymaridae from Cape Verde Islands (Hy-
    menoptera: Chalcidoidea). – Boll. Lab. Ent. agr. Filippo Silvestri 50 (1993): 93-107.

    Author for correspondence: Riccardo Jesu, Dipartimento di Entomologia e Zoologia
Agraria «Filippo Silvestri», Università degli Studi di Napoli «Federico II», Via Università 100
– 80055 Portici (NA), Italia. E-mail: jesu@unina.it

   Printed on December 28th 2006.

				
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