The Xiphydria annulitibia group in northeastern Asia (Hymenoptera, Xiphydriidae) Shinohara, Akihiko Hara, Hideho Smith, David R. Zootaxa 2020 2020-03-24 4755 2 375 389 Shinohara, Hara & Smith Shinohara, Hara & Smith 2020 [151,686,441,468] Insecta Xiphydriidae Xiphydria GBIF Animalia Hymenoptera 7 382 Arthropoda species kanba sp. nov.  ( Figs 2, 3D–F, 4B, 5B, 6)   Description. Female ( holotype, Figs 3D–F, 4B, 5B). Length without ovipositor about 11.5 mm. Head black, with paired spots on anterior part of vertex (behind lateral ocelli), spot on each lateral posterior part of vertex, elongate mark along lower inner orbit to malar space, and spot on lower part of gena creamy white ( Figs 2A–F, 3D–F). Mouth parts blackish brown to black; ligula mostly whitish and mandible dark brownish gray medially. Antenna entirely black. Thorax entirely black. Legs black; narrow base of fore tibia, basal half of mid tibia dorsally, most of mid tarsomere 1 dorsally, basal 2/3 of hind tibia dorsally, and most of hind tarsomere 1 dorsally creamy white. Wings hyaline, with apical 1/3 rather obscurely darkened (darkest part under stigma); veins and stigma blackish brown. Abdomen black, with lateral creamy white spots on terga 2–5; ovipositor sheath with very narrow apex pale brown. Malar space about 0.5× length of distance between toruli, with ventral pit rather shallow, sharply delimited by carina only on anterior margin; occipital carina (crassa) distinct, entire; genal carina developed nearly to vertex but their dorsal ends widely separated from each other; inner orbits subparallel, interocular distance at level of toruli about 1.4× eye height; wide longitudinal depression from median ocellus to median fovea. Labial palpus with 3 palpomeres; maxillary palpus with 5 palpomeres. Both antennae with 15 antennomeres; scape (incl. radicula):pedicel:flagellomere 1:flagellomere 2 as 3.3:1.0:2.3:1.2. Hind tarsomere 1 about 0.9× length of remaining tarsomeres combined; tarsal claws with large inner tooth. Forewing with cell 3R1 closed at apex (vein R1 connecting with vein Rs); cell 2Rs much narrower than cell 1M; crossvein 2r-m apical to crossvein 2m-cu on vein M; hindwing with cell R1 closed and angled at apex ( Fig. 4B). Abdominal tergum 10 normal, not directed dorsally at apex in lateral view ( Fig. 5B). Ovipositor sheath with apical sheath subequal in length to basal sheath. Frons and interantennal area reticulate, with rather conspicuous striae radiating down from ocelli; gena covered with rough longitudinal wrinkles and some large punctures; vertex smooth, shiny, anterior part (anterior subtriangular part of postocellar area and area just behind upper orbit) minutely rugose with sparse punctures, not shiny ( Figs 2A–F; 3D–F). Pronotum irregularly wrinkled in dorsal half, smooth with several longitudinal ridges at middle, and very smooth and impunctate in ventral half; propleuron roughly wrinkled but without distinct punctures and surface rather smooth; mesoscutal median lobe coarsely reticulate on dorsal surface; lateral lobes reticulate with large elongate even area with coriaceous and mat surface and with some small irregular punctures; mesoscutellum densely rugoso-reticulate; mesepisternum rather shallowly rugoso-reticulate, pilose; mesepimeron nearly impunctate and glabrous, coarsely and obliquely wrinkled; metepisternum and metepimeron coarsely rugoso-reticulate. Abdomen with tergum 1 coarsely finely punctate, each half centrally and with broad inner margin nearly impunctate and shining; all other terga weakly shining with very fine surface microsculpture. Male ( paratypewith same data as holotype). Length about 9.0 mm. Similar to female in color and structure ( Fig. 2), except as follows: Mandible largely pale brownish; antennal scape and pedicel partly dark brown; pronotum with creamy white marks on lateral dorsal margin, posterior margin and ventral margin; propleuron with large creamy white mark on lateroventral surface; legs black with blackish brown marks, without creamy white area. Both antennae with 14 antennomeres; abdominal sterna 4–8 each with group of long golden setae in posterior part medially (more conspicuous in lateral view, Fig. 2H, J); tergum 9 without distinct median longitudinal keel, narrowly rounded at apex.  Variation. Female: The length without ovipositor varies from 6.5 to 13.5 mm. The color pattern shows slight variation as follows: The pale spots on the vertex are rarely absent. The pale mark on the lower inner orbit to malar space is often connected with the spot on the lower gena. On the other extreme, the pale spot on the lower gena is entirely missing. The mandibles are sometimes almost entirely black. Abdominal tergum 8 is sometimes marked with creamy white laterally ( Fig. 2B). The antenna usually has 14 or 15 antennomeres (n=87; 13 or 16 antennomeres in 3 antennae). The apical sheath is about 1.0–1.2 × as long as the basal sheath (n=46). Male: The length ranges from 6.5 to 12.5 mm. The color pattern varies little. The paired pale spots on the vertex are rarely missing ( Fig. 2K). Abdominal tergum 1 and posterior part of the mesepisternum rarely have small obscure creamy white marks. Abdominal tergum 6 sometimes has a small creamy white spot on each lateral side. The antenna usually has 14–16 antennomeres (n=115; 17 antennomeres in 4 antennae). Numbers of the labial and maxillary palpomeres are constant in both sexes. The venational characters given in the description above vary little, though crossvein 2r-m is sometimes interstitial with (but never basal to) crossvein 2m-cu on vein M.   Type material examined( 49♀ 70♂from Hokkaidoand 1♀from Honshu).   Holotype: ♀, Horobinai, 42°48’01’’N 141°19’20’’E, ca.  280 malt., near Shikotsu-ko, Chitose, Hokkaido, emerged  25. VII. 2019from dead branch of  Betula ermaniicollected  20. VII. 2019, A. Shinohara& H. Hara( NSMT).   Paratypes:  HOKKAIDO: 1♂, Koshu- nai, Bibai,  12–22. VII. 2002, Malaise trap, H. Hara( NSMT);  2♂, em. from fallen branches of  Betula platyphyllavar. japonica,  July 2014, HokkaidoUniv. Campus [ 43°4’41.77’’N 141°20’20.14’’E, ca.  12 malt.], Sapporo, site #20-1 (Kyoshoku-ura, Kogakubu Power Center-ura), M. Shizuki& T, Yoshida ( USNM);  1♂, HokkaidoUniv. Campus, Sapporo, dead branch collection: April, T. Yoshida & M. Shizuki, emergence box: 15-7a-6,  Betula platyphyllavar. japonica, em.  30. VI.–15. VII. 2015, site #20-1 (Kyoyo-ura), 2–3.5 cm( USNM);  7♀ 5♂, same data except emergence box: 15-8a-6, 3.5 cm<( USNM);  2♂, same data except emergence box: 15-8a-7,  Betula platyphyllavar. japonica, em.  15–31. VII. 2015, 3.5 cm<( USNM);  1♂, Nijigaoka, Kitahiroshima,  1. VIII. 2015, M. Shizuki( USNM);  2♀ 8♂, same locality as holotype,  20. VII. 2019, A. Shinohara( NSMT);  1♀ 2♂, same locality as holotype,  20. VII. 2019, H. Hara( NSMT);  5♀ 8♂, same data as holotypeexcept emerged  21. VII. 2019( NSMT);  1♀ 3♂, same data except emerged  22. VII. 2019( NSMT);  1♀ 4♂, same data except emerged  23. VII. 2019( NSMT);  3♀ 1♂, same data except emerged  24. VII. 2019( NSMT);  2♀ 2♂, same data as holotype( NSMT);  3♀ 1♂, same data except emerged  26. VII. 2019( NSMT);  1♀, same data except emerged  27. VII. 2019( NSMT);  1♂, same data except emerged  28. VII. 2019( NSMT);  2♀ 8♂, same data as holotypeexcept H. Hara& A. Shinohara( NSMT);  1♀ 2♂, same data except emerged  22. VII. 2019( NSMT);  1♂, same data except emerged  23. VII. 2019( NSMT);  7♂, same data except emerged  24. VII. 2019( NSMT);  5♀ 5♂, same data except emerged  25. VII. 2019( NSMT);  3♀ 5♂, same data except emerged  26. VII. 2019( NSMT);  2♀, same data except emerged  27. VII. 2019( NSMT);  5♀, same data except emerged  28. VII. 2019( NSMT);  2♀, same data except emerged  29. VII. 2019( NSMT);  1♀, same data except emerged  2. VIII. 2019( NSMT);  1♀, Naka-toya [ 42°37’0.33’’N 140°55’6.21’’E, ca.  100malt.], near Lake Toya, [Sobetsu-cho],  12–13. VIII. 1979, Y. Seiyama( EU).  HONSHU:  Tochigi Pref.: 1♀, Chûgûshi, 36°44’46’’N 139°28’23’’E, ca.  1300 malt., near Chûzenji-ko, Nikko, emerged  10. VIII. 2019from dead branch of  Betula platyphyllavar. japonicacollected  7. VIII. 2019, A. Shinohara( NSMT).   Distribution. Japan( Hokkaido, Honshu).   Host plant. Betulaceae:  Betula platyphyllaSukaczev var. japonica(Miq.) H.Hara;  Betula ermaniiCham.   Etymology. The specific epithet “  kanba” is a Japanese name for birch, the host plant. It is a noun in apposition.   Branch trapping and adult behavior. On July 20, 2019, Hara and Shinohara collected two dead and fallen branches of  Betula ermaniiin Horobinai( Fig. 6A, branches were found at the edge of the forest on the right side in the picture). These two fallen branches drew our attention, because several individuals of  X. kanbawere found staying on the branches or nearby. A total of 86 adultxiphydriids emerged from these branches during the period from July 21 to August 2, 2019(see material examined above for more details). The two branches are as follows:  Branch A. Apically bifurcate. The basal unbranched part was about 186 cmlong and 2.1–4.2 cmthick and the two apical branches were 42 cmlong and 0.8–1.9 cmthick and 43 cmlong and 1.2–2.1 cmthick, respectively. The whole branch was cut into nine pieces for transportation; five pieces were brought to Bibai by Hara and four pieces were brought to Tsukuba by Shinohara. Almost all the xiphydriids emerged from the thicker basal part (basal 110 cmof the branch, 2.7–4.2 cmin diameter), a few emerged from the apical unbranched part (about 76 cmlong and 2.0– 2.7 cmthick), and none emerged from the apical two branches (42 or 43 cmlong and 2.1 cmor less in diameter).  Branch B. About 106 cmlong, with no branching. The basal thickest end was about 5.0 cm in diameter and the apical thinnest end was about 4.5 cmin diameter. We cut the branch into three pieces, two of them taken to Bibai by Hara and the remaining one taken to Tsukuba by Shinohara. Xiphydriids emerged from all parts of the branch. From this branch, four females and 15 malesof a siricid,  Tremex fuscicornis( Fabricius, 1787), also emerged during the period from 5 to 19, August, 2019. It seems clear that  X. kanbafeeds mainly in branches of 2.7–5.0 cm thick and not in branches thinner than 2.0 cm. The label data show that the series of specimens from Sapporo emerged from dead and fallen branches of 2.0– 3.5 cmthick. On July 24 and 25, Shinohara observed emergence of the adults from the branch. On July 24, a xiphydriid was apparently emerging from the branch at about 18:25. When it was found, the head was outside of the hole but the insect soon returned into the hole. About 18:50, the head of the xiphydriid was coming out again ( Fig. 6B), but it went back into the hole in a few minutes. About 19:15, observation stopped for a few minutes; when observed again, the adult already had emerged and was staying on the branch. On July 25, Shinohara happened to see the face of a xiphydriid in a hole on the branch at about 14:17 ( Fig. 6C). For more than 15 minutes, the xiphydriid did not come out but kept its head somehow moving near the entrance of the hole, seemingly trying to enlarge the hole by biting with its mandibles ( Fig. 6D, E). At about 14:36, the xiphydriid suddenly and quickly came out of the hole ( Fig. 6F–J). On July 23, Shinohara observed a “drumming” behavior of a male adult in the plastic bag, where three pieces of Branch A were stored. The emerged male, while walking, tapped his abdomen on the wall of the plastic bag rhythmically, making a fairly large crackle sound well noticeable at a distance of 1 mfrom the bag in the silent room. This large sound was made simply because the wall of the plastic bag worked as a drum, and the sound would not be heard if the male tapped his abdomen on the surface of the branch in the field. This “drumming” may be part of the courtship behavior and may have some connection with the presence of hair tufts on the abdominal sterna of the male.   Remarks. This new species is easily recognized by the features given in the key. The venational characters are always subject of some variations in the Xiphydriidae, but the small size of cell 2Rs and the basal position of the 2m-cu crossvein on the vein M in the forewing of this species ( Fig. 4B) seem to be fairly stable and serve as good distinguishing characters. The male is known only for this species in the  X. annulitibiagroup. In the males,  X. kanbais separated from the three species of the  X. camelusgroup ( Shinohara & Kameda 2019) in having hair tufts on the abdominal sterna. The males of the three species of the  X. palaeanarcticagroup (Shinohara 2019) also have hair tufts on the abdominal sterna, but the males of  X. palaeanarctica Semenov-Tian-Shanskij, 1921, and  X. nagaseiShinohara, 2019, have partly whitish antennae and the male of  X. ogasawarai Matsumura, 1927, has largely pale brownish legs and a dorsally keeled and apically pointed subtriangular abdominal tergum 9. 2592574829 2019-07-20 2019-07-25 2019-07-20 NSMT Shikotsu-ko & Chitose & A. Shinohara & H. Hara 280 42.800278 Horobinai 19 141.32222 8 383 1 1 Hokkaido holotype 2592574812 2002-07-12 2002-07-22 2002-07-12 Malaise trap NSMT H. Hara 12 36.746113 Bibai 19 139.47305 Bibai 8 383 1 49 1 HOKKAIDO paratype 2592574847 from fallen branches of Betula platyphylla var. japonica 2014-07 2019-08-10 1979-08-12 T, USNM M. Shizuki 12 36.746113 Hokkaido 19 139.47305 Bibai 8 383 2 49 2 Hokkaido paratype 2592574833 2015-06-30 2015-07-15 2015-06-30 T, USNM M. Shizuki 12 36.746113 Hokkaido 19 139.47305 Bibai 8 383 1 49 1 Hokkaido paratype 2592574854 1979-08-12 2019-08-10 1979-08-12 NSMT, T, USNM, EU H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 119 49 70 Hokkaido paratype 2592574819 2015-07-15 2015-07-31 2015-07-15 USNM H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 2 49 2 Hokkaido paratype 2592574856 [613,1353,1720,1748] 2015-08-01 2019-08-10 1979-08-12 USNM M. Shizuki 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 1 49 1 Hokkaido paratype 2592574817 2019-07-20 2019-08-10 1979-08-12 NSMT A. Shinohara 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 10 2 8 Hokkaido holotype 2592574832 2019-07-20 2019-08-10 1979-08-12 NSMT H. Hara 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 3 1 2 Hokkaido holotype 2592574823 [360,1150,1792,1820] 1979-08-12 2019-08-10 1979-08-12 NSMT, T, USNM, EU H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 119 49 70 Hokkaido holotype 2592574808 2019-07-22 2019-08-10 1979-08-12 NSMT H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 4 1 3 Hokkaido paratype 2592574827 [518,1157,1829,1856] 2019-07-23 2019-08-10 1979-08-12 NSMT H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 5 1 4 Hokkaido paratype 2592574820 2019-07-24 2019-08-10 1979-08-12 NSMT H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 4 3 1 Hokkaido paratype 2592574855 [520,960,1865,1892] 1979-08-12 2019-08-10 1979-08-12 NSMT, T, USNM, EU H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 119 49 70 Hokkaido holotype 2592574824 1979-08-12 2019-08-10 1979-08-12 NSMT, T, USNM, EU H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 119 49 70 Hokkaido paratype 2592574852 [324,932,1901,1928] 2019-07-27 2019-08-10 1979-08-12 NSMT H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 1 1 70 Hokkaido paratype 2592574857 2019-07-28 2019-08-10 1979-08-12 NSMT H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 1 49 1 Hokkaido paratype 2592574814 [262,1054,1937,1964] 1979-08-12 2019-08-10 1979-08-12 NSMT, T, USNM, EU H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 119 49 70 Hokkaido holotype 2592574845 1979-08-12 2019-08-10 1979-08-12 NSMT, T, USNM, EU H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 119 49 70 Hokkaido paratype 2592574816 [423,1040,1973,2000] 2019-07-23 2019-08-10 1979-08-12 NSMT H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 1 49 1 Hokkaido paratype 2592574826 2019-07-24 2019-08-10 1979-08-12 NSMT H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 7 49 7 Hokkaido paratype 2592574805 [375,1014,2008,2036] 2019-07-25 2019-08-10 1979-08-12 NSMT H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 8 383 10 5 5 Hokkaido paratype 2592574844 2019-07-26 2019-08-10 1979-08-12 NSMT H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 9 384 36.746113 Lake Toya 19 139.47305 Bibai 8 383 8 3 5 Hokkaido paratype 2592574850 [379,991,153,179] 2019-07-27 2019-08-10 1979-08-12 NSMT H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 9 384 2 2 70 Hokkaido paratype 2592574801 2019-07-28 2019-08-10 1979-08-12 NSMT H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 9 384 5 5 70 Hokkaido paratype 2592574853 [325,935,189,215] 2019-07-29 2019-08-10 1979-08-12 NSMT H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 9 384 2 2 70 Hokkaido paratype 2592574849 1979-08-12 2019-08-10 1979-08-12 NSMT, T, USNM, EU H. Hara & M. Shizuki & A. Shinohara & Y. Seiyama & Chugushi & Chuzenji-ko & Nikko 12 36.746113 Lake Toya 19 139.47305 Bibai 9 384 119 49 70 Hokkaido paratype 2592574821 1979-08-12 1979-08-13 1979-08-12 EU Y. Seiyama 100 36.746113 Lake Toya 19 139.47305 Bibai 9 384 1 1 70 Hokkaido paratype 2592574848 2019-08-07 2019-08-10 2019-08-07 NSMT Chugushi & Chuzenji-ko & Nikko & A. Shinohara 1300 36.746113 Tochigi Pref. 19 139.47305 Bibai 9 384 1 1 70 Tochigi Pref. paratype