Trissolcus japonicus (Ashmead)

Talamas, Elijah J., Johnson, Norman F. & Buffington, Matthew, 2015, Key to Nearctic species of Trissolcus Ashmead (Hymenoptera, Scelionidae), natural enemies of native and invasive stink bugs (Hemiptera, Pentatomidae), Journal of Hymenoptera Research 43, pp. 45-110 : 71-72

Trissolcus japonicus (Ashmead)

Figures 17 , 21 , 25 , 68-71

Dissolcus japonicus Ashmead, 1904: 73 (original description); Kieffer 1926: 124, 125 (description, keyed).

Trissolcus japonicus (Ashmead): Masner and Muesebeck 1968: 72 (type information, generic transfer); Hirashima and Yamagishi 1981: 153 (description, synonymy); Ryu and Hirashima 1984: 37, 43 (description, keyed); Talamas, Buffington and Hoelmer 2013: 114 (description, synonymy, type information).

Trissolcus halyomorphae Yang: Qiu, Yang and Tao 2007: 62 (unavailable: nomen nudum); Yang, Yao, Qiu and Li 2009: 40 (original description); Talamas, Buffington and Hoelmer 2013: 114 (junior synonym of Trissolcus japonicus (Ashmead)).

Diagnosis.

As previous authors have stated ( Yang et al. 2009), T. japonicus belongs to the Trissolcus flavipes species group, first recognized by Kozlov and Lê (1976) and refined by Johnson (1984). Trissolcus japonicus may be separated from other species of the Trissolcus flavipes group Trissolcus in the Nearctic by the following characters: orbital furrow expanded near intersection with malar sulcus; postacetabular and mesopleural epicoxal sulci formed by lines of closed cells (Fig. 70 ); episternal foveae extending from dorsal apex of postacetabular carina to mesopleural pit (Fig. 68 ); 4 clypeal setae (Fig. 25 ).

Link to distribution map.

[http://hol.osu.edu/map-large.html?id=3249]

Associations.

Emerged from egg of Halyomorpha halys ( Stål): [ Hemiptera : Heteroptera : Pentatomoidea : Pentatomidae ]; emerged from Plautia stali Scott: [ Hemiptera : Heteroptera : Pentatomoidea : Pentatomidae ]; collected on mulberry: [ Urticales : Moraceae ]; emerged from stink bug: [ Hemiptera : Heteroptera : Pentatomoidea : Pentatomidae ]; emerged from egg of stink bug: [ Hemiptera : Heteroptera : Pentatomoidea : Pentatomidae ]

Material examined.

Holotype, female, D. japonicus : JAPAN: Kanagawa Pref., Ashigarashimo Dist., Hakone Town, no date, Koebele, USNMENT00831865 (deposited in USNM). Paratypes: CHINA: 2 females, USNMENT00872401, USNMENT00872402 (USNM). Other material: (44 females, 16 males, 12 sex unrecorded) CHINA: 32 females, 11 males, 1 sex unrecorded, USNMENT00979190, USNMENT00979191, USNMENT00979192-USNMENT00979198, USNMENT00979200, USNMENT00979201-USNMENT00979221 (CNCI); USNMENT00675704, USNMENT00675738, USNMENT00675739, USNMENT00675743, USNMENT00675747, USNMENT00675925, USNMENT00764940, USNMENT00764941, USNMENT00764944, USNMENT00764948, USNMENT00764949, USNMENT00764984, USNMENT00916255 (USNM). JAPAN: 8 females, 4 males, 10 sex unrecorded, OSUC 144481-144482, 398858, USNMENT00896340 (CNCI); OSUC 145632, 75843-75848 (OSUC); USNMENT00675755, USNMENT00675770, USNMENT00872125-USNMENT00872133 (USNM). RUSSIA: 1 female, USNMENT00979287 (CNCI). SOUTH KOREA: 3 females, 1 male, USNMENT00979251, USNMENT00979254 (CNCI); USNMENT00675705, USNMENT00675708 (USNM).

Figures

Figures 17 - 22. 25 17 T. japonicus, female (USNMENT 00675989), mesosoma, lateral view 18 T. occiduus, female (USNMENT 00764995), mesosoma, lateral view 19 Trissolcus cultratus, female (USNMENT 00764850), head and mesosoma, dorsolateral view 20 T. euschisti, female (OSUC 523871), mesosoma, lateral view 21 T. japonicus, female (USNMENT 00675989), mesosoma, posterolateral view 22 T. hullensis, female (OSUC 523881), mesosoma, dorsolateral view. Scale bars in millimeters.

Figures 23 - 28. 26 23 T. strabus, female (BMSB 1203), mouthparts, anterior view 24 T. hullensis, female, (OSUC 523881), head and mesosoma, anterolateral view 25 T. japonicus, female holotype, (USNMENT 00831865), mouthparts, anterior view 26 T. strabus, female, (BMSB 1202), head mesosoma, anterolateral view 27 T. erugatus, female, (OSUC 523929), head mesosoma, anterolateral view 28 T. euschisti, female, (BMSB 1223), head mesosoma, anterolateral view. Scale bars in millimeters.

Figures 68 - 71. 39 Trissolcus japonicus 68 female (USNMENT 00872402), head, mesosoma, metasoma, lateral view 69 female (USNMENT 00675989), head, mesosoma, metasoma, dorsal view 7 0 female (USNMENT 00675989), head, mesosoma, ventral view 71 female (USNMENT 00872402), head, anterolateral view. Scale bars in millimeters.