MCZ LIBRARY :•^^^x•^^^^x•^x•^x<•x♦x•^x•^x•:■x•:•^^:•^^^^^:•^:•^^x•^x•^^:•^x•^x•^:•x•^:•:•^xc«•^x•^x•^x•^^ THE UNIVERSITY OF KANSA&rvard SCIENCE BULLETM^^^ ^^ Vol. 55, No. 14, pp. 519-547 March 4, 1996 Descriptions and Distributional Records of American Mecoptera. IV. ' George W. Byers TABLE OF CONTENTS Abstract 519 Introduction 520 Acknowledgments 520 Panorpa capillala 520 The Panorpa involula species group 522 (Panorpa involuta, 522; contoiia, 523; ramosa, 526; attnuiata. 528; redusa, 530; mucronala, 530; key to species, 532) Panorpa hi macula 532 Panorpa serta 533 Panorpa terminata 535 Bittacus distemum 535 Bittacus sylvaticus 537 Bittacus spatulatus 538 Bittacus peninsularis 540 Bittacus pignalellii 541 Bittacus maculosus 542 Kalohitlacus maniculatus 542 Kalobillarus mornatus 543 Kalohitlacus demissus 545 Geographic distribution 545 Literature Cited 547 ABSTRACT Sixteen new species are described and illustrated. These are Panorpn rapilhila (southeastern LT.S.A.); P. involuta (Wracriiz), F. ccmtorta (San Luis Potosi and Hidalgo), P. ramosa, P. mucronala and P. nrlusa (Hidalgo), P. attenuata (San Luis Potosi), P. bimacula (Oaxaca), P. serta (Michoacan), Bittacus sylvaticus (Veracruz) and B. peninsularis (Baja Califor-nia Sur) from Mexico; Kalobittacus maniculatus (Guatemala) , A', dnnissus, K. inornatus and Bittacus distemum (Costa Rica) , and Bittacus spatulatus (Costa Rica and Nicaragua). A lectotype is designated for Panorpa terminata Klug, and the male is ilhtstrated. First known males of Bittacus pignalellii Naviis, from Panama, and Bittacus maculosus B\ers, from Trinidad, are illustrated and briefly described. Some new distributional data for various species are provided. ' C'ONTRIBL'TION NLMB1:R .'5176 FROM THE SnOVV ENTOMOMK.KAr MCSKLM AM) DEPARTMENT OF EnTI l\l( U ( K .\ , L'MXERSrTV OF RWSAS, LAWRENCE, KANSAS 60045-2119.