Trissolcus utahensis (Ashmead), 1893

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 : 79-81

Trissolcus utahensis (Ashmead)

Figures 99-103

Telenomus utahensis Ashmead, 1893: 143, 145, 148 (original description, keyed).

Hadronotus mesillae Cockerell, 1897: 25 (original description, synonymized by Muesebeck & Walkley (1951)); Brues 1910: 47 (keyed); Kieffer 1926: 454, 464 (description, keyed); Muesebeck and Walkley 1951: 694 (junior synonym of Telenomus utahensis Ashmead).

Telenomus ashmeadi Morrill, 1907: 419 (original description, synonymized with Telenomus mesillae (Cockerell) by Gahan (1932)); Kieffer 1926: 27, 48 (description, keyed); Gahan 1932: 757 (junior synonym of Telenomus mesillae (Cockerell)); Mani 1936: 335 (description of misidentified Indian specimen).

Liophanurus utahensis (Ashmead): Kieffer 1926: 65, 73 (description, generic transfer, keyed).

Telenomus mesillae (Cockerell): Gahan 1932: 757 (generic transfer, synonymy).

Trissolcus utahensis (Ashmead): Krombein and Burks 1967: 297 (generic transfer); Masner and Muesebeck 1968: 74 (type information); Johnson 1985b: 432, 441 (description, keyed).

Trissolcus ashmeadi (Morrill): Masner and Muesebeck 1968: 71 (lectotype designation).

Trissolcus mesillae (Cockerell): Masner and Muesebeck 1968: 73 (type information).

Diagnosis.

Trissolcus utahensis is a relatively dark-colored species, though some specimens from the southern part of its range have lighter-colored appendages. In the Nearctic region it is most similar to T. basalis . The two may be distinguished by the color of A1, usually dark, concolorous with the radicle in T. utahensis , and yellow, sharply contrasting with the dark radicle in T. basalis ; and the mesoscutellar sculpture, smooth in T. utahensis , coriaceous in T. basalis .

Link to distribution map.

[http://hol.osu.edu/map-large.html?id=3327]

Associations.

Emerged from Chlorochroa sayi ( Stål): [ Hemiptera : Heteroptera : Pentatomoidea : Pentatomidae ]; emerged from egg of Chlorochroa sayi ( Stål): [ Hemiptera : Heteroptera : Pentatomoidea : Pentatomidae ]; emerged from Chlorochroa uhleri ( Stål): [ Hemiptera : Heteroptera : Pentatomoidea : Pentatomidae ]; collected on Fremontia Torr.: [ Malvales : Malvaceae ]; emerged from egg of Pentatoma ligata Say: [ Hemiptera : Heteroptera : Pentatomoidea : Pentatomidae ]; emerged from Pentatoma sayii ( Stål): [ Hemiptera : Heteroptera : Pentatomoidea : Pentatomidae ]; egg parasite of Pentatomidae : [ Hemiptera : Heteroptera : Pentatomoidea : Pentatomidae ]; emerged from Pentatomidae : [ Hemiptera : Heteroptera : Pentatomoidea : Pentatomidae ]; emerged from egg of Pentatomidae : [ Hemiptera : Heteroptera : Pentatomoidea : Pentatomidae ]; unspecified association Pentatomidae : [ Hemiptera : Heteroptera : Pentatomoidea : Pentatomidae ]; collected on Pinus ponderosa P. & C. Lawson: [ Pinales : Pinaceae ]; collected on Prosopis L.: [ Fabales : Fabaceae ]; living with Rhyacionia neomexicana (Dyar): [ Lepidoptera : Glossata: Tortricoidea : Tortricidae ]; collected on Russian thistle: [ Caryophyllales : Chenopodiaceae ]; emerged from Thyanta pallidovirens ( Stål): [ Hemiptera : Heteroptera : Pentatomoidea : Pentatomidae ]; collected on tomato: [ Solanales : Solanaceae ]; on leaf of tomato: [ Solanales : Solanaceae ]; collected on wild carrot: [ Apiales : Apiaceae ].

Material examined.

Lectotype, female, T. utahensis : UNITED STATES: Wasatch Range, 27.VI.1891, E. A. Schwarz, USNMENT00989049 (deposited in USNM). Paralectotype: UNITED STATES: 1 male, USNMENT00764992 (USNM). Lectotype, female, T. ashmeadi : UNITED STATES: TX, Ward Co., Barstow, 12.IX.1905, reared from egg, A. W. Morrill, USNM Type No. 10364 (deposited in USNM). Holotype, female, H. mesillae : UNITED STATES: NM, Doña Ana Co., Las Cruces, no date, reared from egg, T. D. A. Cockerell, USNM Type No. 3696 (deposited in USNM). Other material: (10 females, 3 males, 142 sex unrecorded) CANADA: 5 sex unrecorded, OSUC 145192-145193, 398862 (CNCI); OSUC 76416-76417 (OSUC). UNITED STATES: 10 females, 3 males, 136 sex unrecorded, OSUC 17807 (BMNH); OSUC 143819-143823, 436690-436699 (LACM); OSUC 77878-77930 (MSWC); OSUC 145230-145252, 145635, 405748, 413942, 542448-542449, 542451-542452, 542455, 76383-76415, 77203-77212 (OSUC); OSUC 205760 (UCDC); USNMENT00872110-USNMENT00872114 (USNM).

Figures

Figures 99 - 103. 48 Trissolcus utahensis 99 female (USNMENT 00872111), head, mesosoma, metasoma, lateral view 100 female lectotype (USNMENT 00), head and mesosoma, dorsal view 101 lectotype female (USNMENT 00989049), metasoma, dorsal view 102 female lectotype (USNMENT 00989049), head and mesosoma, lateral view 103 female lectotype (USNMENT 00989049), head and mesosoma, anterolateral view. Scale bars in millimeters.