50 PROC. ENT. SOC. WASH., VOL. 71, NO. 1, MARCH, 1969 A NEW SPECIES OF NEOTROPICAL SEED WEEVIL AFFECTING PIGEON PEAS, WITH NOTES ON TWO CLOSELY RELATED SPECIES (CoLEOPTERA: BRUCHmAE: Bruchinae) John M. Kingsolver, Systematic Entomology Laboratory, Entomology Research Division, Agr. Res. Serv., USDA^ ABSTRACT — A new species of briichid, Acanthoscelides zeteki, destructive to pigeon peas (Cajanus cajan (L. ) Millsp.), is described from Mexico, Central America, northern South America and the West Indies; comparative characteristics of two closely related species, A. ochraceicolor (Pic) and A. distinguendus (Horn), are given. New Synonymy noted: A. armitagei (Pic) (= A. obreptus Bridwell). A common and potentially destructive bruchid pest of stored pigeon peas, Caianus cajan (L.) Millsp. (C. flavus DC, C. indicus Spreng., auct. ), in Panama and adjacent areas has been identified for several years as Acanthoscelides armitagei (Pic) following J. C. Bridwell's identifications in the U. S. National Museum collection. Through the kindness of Mme. A. Bons of the Museum National d'Histoire Naturelle in Paris, I have been allowed to examine the presumed type (lectotype, see below) of A. armitagei and a series of 7 additional specimens placed with it in the Pic collection. The type and 7 specimens are representative of 2 genera including 5 species entities, none of which is the Panamanian species in pigeon peas. Furthermore, the type of A. armitagei is identical to the lectotype of A. obreptus Bridwell and becomes a senior synonym of that species. I have not been able to assign the pigeon pea bruchid to any de-scribed species, therefore I here describe it as new and name it after James Zetek, the collector of the type series. Acanthoscelides zeteki, n. sp. Measurements. — Length, 3.0-3.25 mm.; width, 2.0 mm. Color. — Integmnent including legs and antennae evenly red; vestiture of golden and gray setae in typical mottled Acanthoscelides pattern (fig. 6), middle of third interval of each elytron with elongate gray spot dehmited anteriorly and posteriorly by rounded golden brown spots, intervals 5 and 7 gray at apices, 8 and 9 with elongated gray spots; pygidium with golden vestiture evenly distrib-uted except for indistinct median condensation. Head very finely punctate, densely covered with yellowish hairs converging toward distinct frontal carina extending from elongated frontal fovea to clypeo-labral suture; antenna not strongly serrate (fig. 7), segments 4-10 flattened, expanded eccentrically. Pronotum subconical, lateral margins slightly arcuate; disk evenly convex; lateral marginal carinae obsolete; front coxae separated only Mail address: c/o U. S. National Museum, Washington, D. C. 20560.
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