Diabrotica trifurcata Jacoby 1887

Derunkov, A. & Konstantinov, A., 2013, Taxonomic changes in the genus Diabrotica Chevrolat (Coleoptera: Chrysomelidae: Galerucinae): results of a synopsis of North and Central America Diabrotica species, Zootaxa 3686 (3), pp. 301-325 : 313-314

Diabrotica trifurcata Jacoby 1887

( Figs 48–57 )

trifurcata Jacoby 1887: 522 (type locality: Panama, V. de Chiriqui; type depository: BMNH, lectotype, male, designated by Smith and Lawrence 1967: 134).

linensis Bechyné 1956: 260 (type locality: Panama, V. de Chiriqui; type depository: BMNH, lectotype, male, designated by Smith and Lawrence 1967: 85). New synonym

Material examined. Diabrotica trifurcata : Lectotype male ( BMNH): 1) [Lectotype]; 2) [V. de Chiriqui, 2–3000 ft. Champion.]; 3) [Type. Sp. figured.]; 4) [ Diabrotica trifurcata Jac. ]; 5) [Godman-Salvin Coll., Biol. Centr.-Amer.]; 6) [Lectotype Diabrotica trifurcata Jac. RFS]. Paralectotype male and female ( BMNH): 1) [Paralectotype]; 2) [Chontales, Nicaragua. Janson.]; 3) [Godman-Salvin Coll., Biol. Centr.-Amer.]; 4) [paraLectotype Diabrotica trifurcata Jac. RFS]. Paralectotype female ( BMNH): 1) [Paralectotype]; 2) [Chontales, Nicaragua. T. Belt.]; 3) [Godman-Salvin Coll., Biol. Centr.-Amer.]; 4) [paraLectotype Diabrotica trifurcata Jac. RFS]. Paralectotype female ( BMNH): 1) [Paralectotype]; 2) [Chontales, Janson]; 3) [ trifurcata Jac. ]; 4) [Baly coll.]; 5) [paraLectotype Diabrotica trifurcata Jac. RFS]. Paralectotype male ( BMNH): 1) [Paralectotype]; 2) [Irazu, 6–7000 ft. H.Rogers.]; 3) [Godman-Salvin Coll., Biol. Centr.-Amer.]; 4) [paraLectotype Diabrotica trifurcata Jac. RFS]. Paralectotype male ( MCZ): 1) [V. de Chiriqui, Champion]; 2) [ Diabrotica trifurcata Jac. ]; 3) [1st Jacoby Coll.]; 4) [Type 17686]; 5) [LectoParatype Diabrotica trifurcata Jac. ]. Paralectotype male ( MCZ): 1) [Chontales, Nicaragua. Janson.]; 2) [1st Jacoby Coll.]; 3) [LectoParatype Diabrotica trifurcata Jac. ]. Paralectotype female ( MCZ): 1) [Chontales, Nicaragua. T. Belt.]; 2) [1st Jacoby Coll.]; 3) [LectoParatype Diabrotica trifurcata Jac. ].

Diabrotica linensis : Lectotype male ( BMNH): 1) [V. de Chiriqui, 4000–6000 ft. Champion.]; 2) [Lectotype Diabrotica linensis Baly (= elongatula Jac.)]. Male ( USNM): [ Costa Rica: Las Cruces, Nr. San Vito 19–20.III.65. SS&WDDuckworth].

We studied the internal sacs of the aedeagi of the lectotypes of D. linensis ( Figs 55–57 ) and D. trifurcata ( Figs 50–52 ) and found no significant differences between them. The elytral color patterns of D. linensis ( Figs 53, 54 ) and D. trifurcata ( Figs 48, 49 ) are different, but that alone is not sufficient to justify the recognition of species status for D. linensis . Therefore, we treat D. linensis as a synonym of D. trifurcata . In the type series of D. trifurcata Jacoby at the BMNH, one paralectotype is not a Diabrotica : 1) [Paralectotype]; 2) [Chontales, Nicaragua. Janson.]; 3) [Godman-Salvin Coll., Biol. Centr.-Amer.]; 4) [paraLectotype Diabrotica trifurcata Jac. RFS]. We do not know what genus this specimen belongs to.

Figures

FIGURES 48 – 52. Diabrotica trifurcata Jacoby. 48 — dorsal view, lectotype, 49 — lateral view, lectotype, 50 — internal sac of the aedeagus, ventral view, 51 — lateral view, left, 52 — lateral view, right.

FIGURES 53 – 57. Diabrotica linensis Bechyné. 53 — dorsal view, lectotype, 54 — lateral view, lectotype, 55 — internal sac of the aedeagus, ventral view, 56 — lateral view, left, 57 — lateral view, right.