Key to the oriental species of Lyroda say, with description of a new species from China (hymenoptera: crabronidae).
Article Type: Report
Subject: Hymenoptera (Research)
Authors: Li, Tingjing
Cai, Wanzhi
Li, Qiang
Pub Date: 04/01/2009
Publication: Name: Entomologica Americana Publisher: New York Entomological Society Audience: Academic Format: Magazine/Journal Subject: Biological sciences; Science and technology Copyright: COPYRIGHT 2009 New York Entomological Society ISSN: 1947-5136
Issue: Date: April, 2009 Source Volume: 115 Source Issue: 2
Topic: Event Code: 310 Science & research
Geographic: Geographic Scope: China Geographic Code: 9CHIN China
Accession Number: 257814196
Full Text: Abstract.--The first key to the Oriental species of the genus is provided. One new species, Lyroda tridentata from Yunnan, China, is described and illustrated. L. salai Giner Mad is first recorded from China.

Key words: Hymenoptera, Crabronidae, Lyroda, new species, new record, China.

**********

The genus Lyroda includes 24 species and 4 subspecies, of which 7 species and 2 subspecies occur in the Oriental, one species and one subspecies in the Palearctic, 4 species and one subspecies in the Australian, 2 in the Ethiopian, 2 in the Nearctic, 5 in the Neotropical, 2 in the Palearctic and Oriental, and one in the Oriental, Ethiopian and Australian (Bingham, 1897; Cameron, 1889; Williams, 1928; Tsuneki, 1967; Bohart and Menke, 1976; Tsuneki, 1983a; Tsuneki, 1983b; Wu and Zhou, 1996; Pulawski, 2007). In the course of study of Chinese Lyroda, 6 species and one subspecies are recognized, of which one is new to science (bringing the total number of species to 25), and one is first recorded from China.

The material examined during this study is deposited in the following institutions: Yunnan Agricultural University, Kunming (YNAU); China Agricultural University, Beijing (CAU); Zhejiang University, Hangzhou (ZJU); Institute of Zoology, Academia Sinica, Beijing (IZB); Fujian Agricultural and Forestal University, Fuzhou (FJAFU).

The specimens were observed and figured with the aid of a stereomicroscope with an ocular micrometer. The abbreviations in the text are as follows: HW, head width; HL, head length; A1, A2, and so on, antennal segment 1, antennal segment 2, and so on; POD, postocellar distance; Od, ocellus diameter; OOD, the minimum distance between the compound eye and posterior

ocellus; OCD, ocello-occipital distance (distance between posterior margin of hind ocellus and occipital margin seen vertically from above); IODv, minimum interocular distance at vertex (dorsal view); T1, T2, and so on, tarsal segment 1, tarsal segment 2, and so on; PD, puncture diameter; PIS, interspaces between punctures; GS1, GS2, and so on, gastral sternum 1, gastral sternum 2, and so on; GT1, GT2, and so on, gastral tergum 1, gastral tergum 2, and so on.

KEY TO THE ORIENTAL SPECIES OF LYRODA SAY

Females

(Females of L. alaminos Tsuneki, L. argenteofacialis (Cameron), and L. philippinica Tsuneki are Unknown.)

[FIGURES 1-11 OMITTED]

Males

Lyroda tridentata, new species Figs. 1-11

DESCRIPTION: Female: Body length 9.0-10.0 mm. Black; mandible basally, all T5 and pygidial plate broadly ferruginous; palpi, mandible apically dark ferruginous; tibial and tarsal spines pale brown; wings hyaline; outer portion of tegula, stigma, and veins dark brown. Setae on head and thorax silvery, gastral segments I-III with one silvery band of pile, respectively; setae on gastral segments IV-VI brown, those on pygidial plate brown, dense, stiff, appressed, and mixed with a few erect longer setae. Head: HW: HL: IODv: A3 = 89: 38: 43: 19; A2, 3, 4, 5, 11, 12 = 8: 19: 14: 13:11: 17; OOD: Od: POD: OCD = 10: 5: 12: 23. Inner orbit of eye at the vertex parallel; vertex and frons with dense punctures, PIS < PD, median furrow distinctly dividing frons into two portions; clypeus (Fig. 1) alutaceous and minutely punctate, about PIS = PD, anterior margin with three sets of three teeth and two short teeth between lateral and median sets; mandible with two short basal teeth on inner margin, and distinctly incised at the base on outer margin. Thorax: Most anterior region of pronotum with eight holes; scutum with well-defined median furrow, scutum, scutellum and metanotum with dense punctures, PIS < PD, sides of mesothorax alutaceous, sides of metathorax sparsely punctate and polished; propodeal dorsum with median carina that extends near to dorsum apex, rugae on dorsum somewhat reticulate; propodeum without lateral carina, dorsolateral and posterolateral areas with coarse, transverse, short carinae; sides ofpropodeum alutaceous, with sparse and minute punctures; posterior sides of propodeum with narrow, deep median furrow, sides of furrow with somewhat sinuate rugae. Length relation between abscissae of radial vein of forewing: 2 < 5 < 3 = 1 < 4.

Gaster: Basal platform of GT1 (Fig. 4) heart-shaped, with short, somewhat transverse lateral carinae; pygidial plate triangular (Fig. 7).

Male: Body length 7.5-8.0 mm. Similar to female; but setae on body somewhat pale brown, and denser than in female; one elliptic, ferruginous macula on base of GT2, a pair of round and ferruginous maculae on base of GS2; HW: HL: IODv: A3 = 88: 38: 48: 16; A2, 3, 4, 5, 12, 13 = 8: 16: 12: 12: 11: 13; OOD: Od: POD: OCD = 12: 5: 13: 24; anterior margin of clypeus (Fig. 2) in middle distinctly, arcuately excavated, with sides of excavation acutely produced, with a trapeziform prominence mesally (prominence slightly emarginate in middle), and with subquadrate polished area on surface; median carina on propodeal dorsum somewhat shorter than in female, rugae on dorsum somewhat transverse; length relation between abscissae of radial vein of forewing (Fig. 3): 2 < 5 < 4 [less than or equal to] 3 < 1; basal platform of GT1 (Fig. 5), carinae on sides of the platform shorter than in female, pygidial plate (Fig. 11) short and not incised at apex, its lateral carina somewhat rounded; sternum VIII (Fig. 6) without median tooth at apex, volsella (Fig. 8), penis valve (Fig. 9), and paramere (Fig. 10).

HOLOTYPE [female]: CHINA: Yunnan: Dehong City, Yinjiang County, Pingyuan Town, Yunyan Mountain, 15 August 2005, Hesheng Wang. Paratypes: 1[female], same data as holotype; 1[female], CHINA: Yunnan: Dehong City, Yinjiang County, Pingyuan Town, Yunyan Mountain, 15 August 2005, Tingjing Li; 1[male], CHINA: Yunnan: Dehong City, Luxi County, Fapa Town, 10 August 2006, Li Ma. All deposited in YNAU.

ETYMOLOGY: The specific name is derived from two Latin words: tri- (= three) and dentata (= dentate), which refers to the anterior clypeal margin of the female, which has a medial set of three teeth.

DISTRIBUTION: China: Yunnan.

DISCUSSION: The species is similar to L. binghami Tsuneki (1983) from India, in which the anterior margin of the clypeus (Fig. 1) has three sets of three teeth and two short teeth between the lateral and median sets in the female. L. tridentata can be distinguished from L. binghami and all of the other congeners by the combination of the following characters: in female pygidial plate (Fig. 7) triangular and broadly ferruginous; basal platform of GT1 (Fig. 4) heart-shaped; in male anterior margin of clypeus (Fig. 2) distinctly, arcuately excavated, with the sides of excavation acutely produced, with a median trapeziform prominence (prominence slightly emarginate in middle); lateral carina of pygidial plate (Fig. 11) somewhat rounded; sternum VIII (Fig. 6) without median tooth at apex; length relation between abscissae of radial vein of fore wing (Fig. 3): 2 < 5 < 4 [less than or equal to] 3 < 1.

Lyroda salai Giner Mari, 1945; first record from China

SPECIMENS EXAMINED: 1[female], CHINA: Yunnan: Dehong City, Longchuan County, Ba Town, Badao Village, 12 August 2005, Hesheng Wang. Deposited in YNAU.

DISTRIBUTION: China: Yunnan; India.

ACKNOWLEDGMENTS

We are grateful to Wojciech J. Pulawski (California Academy of Sciences, California) for providing copies of many publications, to Professor Yan-Ru Wu (Institute of Zoology, Academia Sinica, Beijing), and Professor Junhua He and Professor Xuexin Chen (Zhejiang University, Hangzhou), and Professor Naiquan Lin (Fujian Agricultural and Forestal University, Fuzhou) for providing us with the specimens deposited in the insect collections under their care. This study is supported by the National Natural Science Foundation of China (30460025, 30160014), Ministry of Science and Technology of China (2006FY120100), and Science and Technology Department of Yunnan Province (2003RC01).

Received 6 August 2007; accepted 15 November 2008

LITERATURE CITED

Bingham, C. T. 1897. The fauna of British India, including Ceylon and Burma. Hymenoptera, Vol. I, Wasps and bees. Taylor and Francis, London, 1-579.

Bohart, R. M. and A. S. Menke. 1976. Sphecid wasps of the world. University of California Press, Berkeley, Los Angeles, London, IX, 695 pp.

Cameron, P. 1889. Hymenoptera Orientalis; or contributions to a knowledge of the Hymenoptera of the Oriental Zoological Region. Memoirs and Proceedings of the Manchster Literary and Philosophical Society 2(4): 91-152.

Giner Mari, J. 1945. Esfecidos orientales. (Himenopteros de la India inglesa cazados por el P. Ignacio Sala de Castellarnau, S.J. (I).-2a serie: Esfecidos). Las Ciencias 10:847-856.

Pulawski, W. 2007. Catalog of Sphecidae. Available from http://wwwcalacademy.org/research/entomology/ Entomology_Resources/Hymenoptera/sphecidae/ Genera_and_species_PDF/Lyroda.pdf(accessed 6 April 2007), 20 pp.

Tsuneki, K. 1967. Studies on the Formosan Sphecidae (I). The Subfamily Larrinae. Etizenia, (20): 55-59.

Tsuneki, K. 1983a. Further studies on the Larrinae of the Philippine Islands, with remarks on the Indian species of the genus Lyroda, (Hymenoptera, Sphecidae). Special Publications of the Japan Hymenopterists Association 24: 69-81, 112-117.

Tsuneki, K. 1983b. Revision of the holotype of Odontolarra (= Lyroda) nigra Cameron, with remarks on its subspecies and the description of a closely related new species from Japan (Hymenoptera, Sphecidae). Special Publications of the Japan Hymenopterists Association 25: 4157-62.

Williams, F. X. 1928. Studies in tropical wasps--their hosts and associates (with descriptions of new species). Bulletin of the Hawaiian Sugar Planters Association, Entomological Series 19:61-111.

Wu and Zhou. 1996. Economic Insect Fauna of China. Fasc. 52. Hymenoptera: Sphecidae. Science Press, Beijing, 197 pp.

TINGJING LI (1,2), WANZHI CAI (2) * AND QIANG LI (1) *

(1) Department of Entomology, College of Plant Protection, Yunnan Agricultural University, Kunming, Yunnan 650201, China

(2) Department of Entomology, China Agricultural University, Yuanmingyuan West Road, Beijing 100094, China

* E-mail address for correspondence: caiwz@cau. edu.cn
1. At least first and second gastral segments
ferruginous (Tsuneki, 1983a: 77-79). China
(Fujian, Yunnan and Taiwan); Indonesia;
India; Philippines; Thailand; Solomon Islands;
Oman ... formosa (Smith)

-- Gaster entirely black                                        2

2. Anterior margin of clypeus with three sets of
three teeth ... 3

-- Anterior margin of clypeus with two sets of
three teeth, and a set of two teeth in middle                   5

3. Clypeus gently produced between lateral and
median sets (Tsuneki, 1983a: 79-81). Philippines   laguna Tsuneki

-- Clypeus with teeth between lateral and median
sets                                                            4

4. Pygidial plate (Fig. 7) broadly ferruginous and
triangular, its lateral carina not rounded. China
(Yunnan)                                        tridentata sp. nov.

-- Pygidial plate not ferruginous or triangular, its
lateral carina somewhat rounded (Tsuneki,
1983a: 73-77). India                               binghami Tsuneki

5. Clypeus without teeth between lateral and
median sets                                                      6

-- Clypeus with teeth between lateral and median
sets                                                             7

6. Distance between lateral and median sets about
as long as the combined width of lateral set
(Tsuneki, 1967:58 59). China (Zhejiang, Yunnan
and Taiwan)                                 nigra takasago Tsuneki

-- Distance between lateral and median sets
shorter than the combined width of lateral set
(Tsuneki, 1983b: 55 58). India; Japan         nigra nigra (Cameron)

7. Clypeus with one tooth between lateral and
median sets                                                      8

-- Clypeus with more than one tooth between
lateral and median sets                                          9

8. Setae on body silvery; each tarsus relatively
somewhat longer; basal rounded platform of
GTI not distinctly concave (Bingham, 1897: 210;
Tsuneki, 1983a: 70-72). Indonesia; Burma; Malaysia;
Philippines; Japan                        venusta venusta Bingham

-- Setae on frons, pronotum, mesonotum and
propodeum distinctly brassy; each tarsus relatively
shorter, except hind T1; basal rounded platform
of GT1 distinctly concave (Tsuneki, 1967: 56-58;
Wu and Zhou, 1996: 95). China (Fujian and
Taiwan)                                    venusta taiwana Tsuneki

9. Median set of clypeal teeth narrow and
cuspate; a blackish fascia crossing the two
cubital cells and apex of second discoidal cell in
forewing (Giner Mari, 1945: 854; Tsuneki,
1983a: 73). China (Yunnan); India
                          salai Giner Mari, first record from China

-- Median set of clypeal teeth wide, not cuspate;
forewing without blackish fascia crossing the
two cubital cells (Williams, 1928: 94; Tsuneki,
1983a: 79). China (Yunnan and Taiwan)              williamsi Tsuneki


(Males of L. nigra nigra (Cameron) and L.
salai Giner Marl are unknown.)

1. At least first and second gastral segments
ferruginous (Tsuneki, 1983a: 77-79). China;
Indonesia; India; Philippines; Thailand; Solomon
Islands; Oman                                         formosa (Smith)

-- Gaster entirely black or at most first gastral
segment brown                                                       2

2. Anterior margin of clypeus not excavated in
middle                                                              3

-- Anterior margin of clypeus excavated in middle                   6

3. Sternum VIII without median tooth at apex                        4

-- Sternum VII1 with median tooth at apex                           5

4. Pygidial plate broad and subtruncate, its
lateral carina not rounded (Tsuneki, 1983a:
73-77). India                                        binghami Tsuneki

-- Pygidial plate narrow and not truncate, its
lateral carina somewhat rounded (Tsuneki,
1983a: 79-81). Philippines                             laguna Tsuneki

5. Length relation between abscissae of radial
vein of forewing: 5 [less than or equal to] 2
< 3 < 4 = 1, or 2 [less than or equal to] 5
< 3 < 4 = 1; paramere broad, suddenly
narrowed at apex (Tsuneki, 1967: 58-59).
China (Zhejiang, Yunnan and Taiwan)           nigra takasago Tsuneki,

--Length relation between abscissae of radial
vein of forewing: 5 [less than or equal to] 2 < 3 < 1 < 4, or 5 < 2
< 3 < 1 < 4; paramere gradually narrowed
(Williams, 1928: 94; Tsuneki, 1983a: 79).
(Yunnan and Taiwan); Philippines                  williamsi Tsuneki

6. Median prominence of clypeus beveled not
directly from anterior margin, but from a step
below it (Tsuneki, 1983a: 112-114). Philippines  philippiniea Tsuneki

--Median prominence of clypeus beveled directly
from anterior margin                                               7

7.  First gastral segment distinctly brown (Cameron,
1889: 151). India                          argenteofacialis (Cameron)

--First gastral segment completely black                           8

8. Anterior margin of clypeus gently excavated
(Tsuneki, 1983a: 115). Philippines                  alaminos Tsuneki

--Anterior margin of clypeus distinctly, arcuately
excavated                                                          9

9. Sternum VIII (Fig. 6) without median tooth
at apex; prominence of clypeus (Fig. 2)
somewhat emarginate in middle; GS2 with a
pair of round ferruginous maculae. China
(Yunnan)                                          tridentata sp. nov.

--Sternum VIII with median tooth at apex;
median prominence of clypeus not emarginate
medially; GS2 without round ferruginous
macula                                                            10

10. Pygidial plate not incised at apex, and its
lateral carina somewhat rounded (Bingham,
1897: 210; Tsuneki, 1983a: 70-72). Indonesia;
Burma; Malaysia; Philippines; Japan           venusta venusta Bingham

--Pygidial plate incised at apex, its lateral carina
not rounded (Tsuneki, 1967: 56-58; Wu and
Zhou, 1996: 95). China (Fujian and Taiwan)    venusta taiwana Tsuneki
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