By Richard Bohart and Lionel Stange
Read Online or Download A revision of the genus Zethus Fabricius in the Western Hemisphere (Hymenoptera: Eumenidae) PDF
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Additional info for A revision of the genus Zethus Fabricius in the Western Hemisphere (Hymenoptera: Eumenidae)
2 Distal lamella of tergite II more coriaceous, micropunctate, color about as on remainder of tergite; tergite I closely shagreened; stem of tergite II much broader than long; females only known 3 2. ans Zavattari B. Abdomen essentially blue or greenish blue 4 Abdomen yello\v or dark brown ' 5 4. Tergite I nearly as broad as long measured from subbasal carina; thorax essentially greenish blue, head blue \vith gena broadly red (northern Argentina) wagneri Bohart and Stange Tergite I less than one-half as broad as long measured from subbasal carina; thorax essentially black, gena dark brown (Surinam, French Guiana, Brazil, Bolivia) ehalybeus Saussure a • • • • • • • • • • • • • • • • • • • •• 38 University of California Publications in Entomology 19 prominens spinipes otomitus neotomjfus 23 huascari 24 26 wagner'; 27 bequaerti 28 bequaerti Figs.
Clypeu8 with apical margin beveled, weakly concave; tergite I less than one-half as broad as long measured from subbasal carina; stem of tergite II much broader than long, distal lamella coriaceous, micropunctate, color about as on remainder of tergite. -10 females. SURINAM. (Leiden). FRENCH GUIANA. Cayenne (h010type) (Geneva). BRAZIL. Para: 6bidos (UOD), Santarem (CMP); Mato Grosso: Chapada da Santa Anna (CMP, MCZ). BOLIVIA. ). -The striking metallic blue abdomen is found also in w'agneri which, however, has a much stouter petiole.
Holotype male, Mexico (BM). -Length to apex of tergite II from 15 to 22 rom. Black with ivory markings as follows: lower one-third of male clypeus, male flagellomeres beneath, scrobal spot, humeral spot usually, upper mesopleural spot, postscutellar and propodeal spots, subapical band or double spot on tergite I; subapical band on tergite II and sternite II. Short and sparse- erect pubescence on head and notum, longer on mesopleuron, very sparse on tergite II. Pronotum, scutum, and mesopleuron with sparse punctation, highly polished; scutellum from scutum by a simple seam.