Trissolcus cultratus (Mayr), 1893

Talamas, Elijah J., Buffington, Matthew L. & Hoelmer, Kim, 2017, Revision of Palearctic Trissolcus Ashmead (Hymenoptera, Scelionidae), Journal of Hymenoptera Research 56, pp. 3-185 : 18

Trissolcus cultratus (Mayr) Figures 40-41 , 42-45

Trissolcus striatellus Kononova syn. n.; http://bioguid.osu.edu/xbiod_concepts/354844

Telenomus cultratus Mayr, 1879: 699, 701, 703 (original description, keyed, synonymized by Kozlov (1968)); Kozlov, 1968: 200 (junior synonym of Trissolcus flavipes (Thomson)).

Aphanurus Cultratus (Mayr): Kieffer, 1912: 70 (description, generic transfer).

Microphanurus cultratus (Mayr): Kieffer, 1926: 91, 95 (description, generic transfer, keyed); Nixon, 1939: 130, 133 (description, keyed); Rjachovskij, 1959: 83 (keyed).

Asolcus cultratus (Mayr): Masner, 1959: 378 (diagnosis, variation); Delucchi, 1961: 44, 51 (description, keyed).

Trissolcus cultratus (Mayr): Safavi, 1968: 414 (keyed); Szabó, 1975: 266, 267 (description, lectotype designation, keyed); Talamas, Johnson & Buffington, 2015: 54, 71 (removed from synonymy with Trissolcus flavipes (Thomson), diagnosis, keyed, type information).

Trissolcus striatellus Kononova syn. n., 2014: 744 (original description, diagnosis).

Description.

Female body length: 1.19-1.98 mm (n=20). Male body length: 1.03-1.68 mm (n=5). Body color: head, mesosoma, and metasoma black.

Head. Color of radicle: yellow. Length of radicle: less than width of clypeus. Color of A1-A6 in female: yellow to brown. Color of A7-A11 in female: dark brown. Number of basiconic sensilla on A6: 0. Number of basiconic sensilla on A7: 2. Facial striae: present as short grooves. Number of clypeal setae: 2. Microsculpture on gena directly above mandibular condyle: present. Shape of ventral gena in lateral view: narrow. Genal carina: present and extending dorsally to vicinity of lower margin eye; present only at base of mandible. Malar striae: absent. Sculpture of malar sulcus: antero-posteriorly striate. Macrosculpture of frons between antennal scrobe and anterior ocellus: parallel arcuate rugae. Preocellar pit: present. Setation of lateral frons: sparse. Punctation of lateral frons: sparse. Sculpture directly ventral to preocellar pit: microsculptured. Macrosculpture of lateral frons: obliquely striate, striae of upper frons extending ventrolaterally. OOL: separated by less than one ocellar diameter. Hyperoccipital carina: complete. Macrosculpture of posterior vertex: absent. Microsculpture on posterior vertex along occipital carina: present. Anterior margin of occipital carina: coarsely crenulate.

Mesosoma: Epomial carina: present. Macrosculpture of lateral pronotum directly anterior to netrion: striate, striae formed by elongation of cells of netrion sulcus. Netrion sulcus: complete. Pronotal suprahumeral sulcus in posterior half of pronotum: undifferentiated from sculpture of dorsal pronotum. Number of episternal foveae: 4 or more. Course of episternal foveae ventrally: abutting postacetabular sulcus. Course of episternal foveae dorsally: extending to mesopleural pit. Subacropleural sulcus: present. Speculum: transversely strigose. Mesopleural pit: extending ventrally into dorsoventral furrow parallel to mesopleural carina. Mesopleural carina: complete; well defined anteriorly, poorly defined to absent posteriorly. Sculpture of femoral depression: smooth. Patch of striae at posteroventral end of femoral depression: absent. Setal patch at posteroventral end of femoral depression: present. Microsculpture of anteroventral mesopleuron: present dorsally. Macrosculpture of anteroventral mesopleuron: irregularly rugulose; absent. Postacetabular sulcus: formed by large cells; formed by small punctures. Mesopleural epicoxal sulcus: formed by open crenulae. Setation of posteroventral metapleuron: absent. Sculpture of dorsal metapleural area: smooth in anterodorsal corner, coarsely rugose posteriorly. Posterodorsal metapleural sulcus: present as line of foveae; poorly defined to absent. Paracoxal sulcus in ventral half of metapleuron: indistinguishable from sculpture to absent; indicated by a line of elongate cells. Anteroventral extension of metapleuron: extending to base of mesocoxa. Metapleural epicoxal sulcus: absent or indistinguishable from sculpture; present as coarse rugae. Mesoscutal humeral sulcus: indicated by a line of cells. Median mesoscutal carina: absent. Macrosculpture of mesoscutum: reticulate anteriorly, becoming longitudinally strigose posteriorly. Pattern of mesoscutal microsculpture: uniform throughout. Mesoscutal suprahumeral sulcus: comprised of cells. Length of mesoscutal suprahumeral sulcus: about half the length of anterolateral edge of mesoscutum. Parapsidal line: present. Notaulus: extending at least 1/3 length of mesoscutum. Median protuberance on anterior margin of mesoscutellum: absent; present. Protruberance on anterior margin of mesoscutellum directly posterior to notaulus: absent; present. Shape of dorsal margin of anterior lobe of axillar crescent: flat, appearing fused with lateral margin of mesoscutum. Sculpture of anterior lobe of axillar crescent: dorsoventrally strigose. Area bounded by axillar crescent: striate. Macrosculpture of mesoscutellum: absent. Microsculpture on mesoscutellum: present throughout. Median mesoscutellar carina: absent. Setation of posterior scutellar sulcus: present. Form of metascutellum: coarsely rugose.

Metanotal trough: smooth in dorsal half, with line of foveae ventrally. Metapostnotum: invaginated near lateral edge of metascutellum. Length of postmarginal vein: about 1.5 times as long as stigmal vein. Color of legs: coxae dark brown to black, femora and tibia yellow to dark brown, trochanters and tarsi yellow to pale brown. Anteromedial portion of metasomal depression: punctate or crenulate.

Metasoma. Longitudinal striae on T1 posterior to basal costae: present. Number of sublateral setae (on one side): 0; 1. Setation of laterotergite 1: absent. Longitudinal striation of T2: present in most of tergite, extending posteriorly to transverse line of setae. Setation of T2: present in a transverse line posteriorly. Setation of laterotergite 2: present. Posteriorly directed setae on medial S1: present. Striation of S2: present laterally and in anterior half of median third. Setation of S2: present throughout area not covered by laterotergite.

Diagnosis.

The arched rugae on the frons of Trissolcus cultratus separate it from most species of the flavipes group, but it is shared with T. exerrandus and T. corai . Trissolcus exerrandus has densely setose eyes whereas those of T. cultratus are essentially bare. The orbital furrow in T. corai is well defined ventrally and that of T. cultratus is not (compare Figures 37 , 38 to Figures 44 , 45 ).

Link to distribution map.

http://hol.osu.edu/map-large.html?id=13182

Material examined.

Lectotype, female, T. cultratus : Palearctic region : no date, G. Mayr, NHMW 0008A (deposited in NHMW) . Paralectotype: Palearctic region : 1 male, NHMW 0008B ( NHMW) . Other material: (198 females, 26 males, 4 unsexed) AUSTRIA: 5 females, 2 unsexed, USNMENT00979612-00979613 (CUIC); OSUC 75765-75767 ( OSUC); USNMENT00675943-00675944 ( USNM) . BELGIUM: 1 female, USNMENT00896165 ( CNCI) . CHINA: 8 females, UCRC ENT 142635, 143817 ( UCRC); USNMENT00764945-00764947, 00764962-00764963, 00764983 ( USNM) . CZECH REPUBLIC: 1 female, 3 males, USNMENT00896311-00896314 ( CNCI) . FRANCE: 11 females, 1 male, USNMENT00916035, 00916037-00916038, 00916041, 00916083, 00916125, 00916131, 00916147 ( BMNH); OSUC 75753-75756 ( OSUC) . GERMANY: 1 female, USNMENT00872117 ( USNM) . HUNGARY: 5 females, 1 unsexed, USNMENT00896072, 00896073 ( CNCI); OSUC 75771-75773, 75783 ( OSUC) . JAPAN: 32 females, 6 males, OSUC144472-144480, 542363, 542374, 542412, 542415, USNMENT00896136, 00896138, 00896140, 00896305, 00896307-00896309, 00896315, 00896339, 00896341 ( CNCI); OSUC 75784, 75786-75788 ( OSUC); UCRC ENT 297012 ( UCRC); USNMENT00675730-00675737, 00675761, 00764849 ( USNM) . POLAND: 6 females, USNMENT00916604-00916609 ( BMNH) . RUSSIA: 34 females, USNMENT00896048-00896054, 00896074-00896075, 00979282-00979286, 00979289 ( CNCI); UCRC ENT 110944, 110951, 110963, 110983, 110985, 110992, 111001-111003, 111009, 111011, 111066, 111078, 133622, 297001-297003, 297009, 297013 ( UCRC) . SOUTH KOREA: 29 females, 3 males, OSUC144470-144471, USNMENT00896011, 00896015-00896016, 00896018, 00896019, 00896029, 00896032, 00896044-00896046, 00896112-00896116, 00896118-00896119, 00896121-00896122, 00896134-00896135, 00896157, 00979237, 00979246-00979250, 00979253, 00979280 ( CNCI) . SWEDEN: 10 females, 4 males, USNMENT00916105-00916110, 00916112-00916114, 00916310, 00916315-00916317, 00916319 ( BMNH) . SWITZERLAND: 26 females, 2 males, USNMENT00979222-00979226 ( CNCI); USNMENT00916973-00916989, 00954000- 00954005 ( USNM) . TAIWAN: 2 females, OSUC542386 ( CNCI); UCRC ENT 112210 ( UCRC) . UNITED KINGDOM: 21 females, 6 males, 1 unsexed, USNMENT00916247-00916254, 00916393-00916408, 00916411-00916412, 00916416, 00916418 ( BMNH) .

Figures

Figures 40 - 41. Trissolcus cultratus 40 female lectotype (NHMW 0008 A), head, mesosoma, metasoma, lateral view 41 female (USNMENT 00916251), head, mesosoma, metasoma, dorsal view. Scale bars in millimeters.

Figures 42 - 45. Trissolcus cultratus 42 female (USNMENT 00916251), head and mesosoma, ventrolateral view 43 female (USNMENT 00764849), head and mesosoma, dorsolateral view 44 female lectotype (NHMW 0008 A), head, anterolateral view 45 female (USNMENT 00916251), head, anterior view. Scale bars in millimeters.

Figures 37 - 39. Trissolcus corai 37 female paratype (OSUC 542370), head, mesosoma, metasoma, ventrolateral view 38 female paratype (USNMENT 00896028), head, mesosoma, metasoma, ventrolateral view 39 female paratype (USNMENT 01223664), ventral head, anterior view. Scale bars in millimeters.