AMERICAN MUSEUM Norntates PUBLISHED by the AMERICAN MUSEUM of NATURAL HISTORY CENTRAL PARK WEST at 79TH STREET, NEW YORK, N.Y
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AMERICAN MUSEUM Norntates PUBLISHED BY THE AMERICAN MUSEUM OF NATURAL HISTORY CENTRAL PARK WEST AT 79TH STREET, NEW YORK, N.Y. 10024 Number 2955, 36 pp., 24 figs. October 5, 1 989 A Review of the Late Season Stenodemini of Southwest North America, and a Description of the New Genus Caracoris from Brazil (Heteroptera: Miridae) MICHAEL D. SCHWARTZ' ABSTRACT The new genus Autumnimiris is diagnosed and Stenodema gracilis Van Duzee. The new genus described to include the new species, guadalupe, Caracoris is diagnosed and described for a new and four other species, creating these new com- species, nigropunctatus, from Para, Brazil. The binations: albescens (Van Duzee) [Porpomiris], genera Chaetofoveolocoris Knight and Litomiris koebelei (Van Duzee) [Megaloceroea], roseus (Dis- Slater are reviewed, and a new species, C. parsoni, tant) [Neotropicomiris], and rubicundus (Uhler) from Chihuahua, Mexico, is described. Each [Litomiris]. These new species synonymies are cre- species treatment is provided with a diagnosis, ated (senior names first): Megaloceroea koebelei description or redescription, figures of the male Van Duzee = M. letcheri Knight, Miris roseus Dis- dorsal habitus and genitalia, and distribution map. tant = Megaloceroea punctata Knight. Lectotypes A key to species is presented for Autumnimiris are designated for Litomiris tritavus Bliven, Me- and Litomiris. galoceroea debilis Uhler, M. rubicundus Uhler, and INTRODUCTION This paper is a review offour stenodemine secondary gonopore incomplete dorsally, and genera placed in the Stenodema generic group without basal processes; posterior wall of fe- established by the cladistic analysis of male with saclike dorsal structure and large Schwartz (1987). Members ofthe Stenodema inter-ramal lobes. Documentation is provid- group are distinguished by these features of ed for the new genus Autumnimiris with five the genitalia: vesica of male with aperture of southwest North American species, four of I Scientific Assistant, Department of Entomology, American Museum of Natural History. Copyright ©3 American Museum of Natural History 1989 ISSN 0003-0082 / Price $3.70 2 AMERICAN MUSEUM NOVITATES NO. 2955 which were previously placed in other genera, UAZ C. A. Olsen and F. G. Werner, Depart- and for the new genus, Caracoris, described ment of Entomology, University ofAr- for a new species from Brazil. In addition, izona, Tucson the two closely related and sympatric genera, UCB J. Chemsak and J. A. Powell, Depart- are re- ment ofEntomology, University ofCal- Chaetofoveolocoris and Litomiris, ifornia, Berkeley viewed, and a new species of Chaetofoveo- UCD R. 0. Schuster, Department of Ento- locoris is described. All taxa are arranged al- mology, University ofCalifornia, Davis phabetically by genus and species, and each UCR J. D. Pinto and S. I. Frommer, Depart- is provided with a diagnosis, complete de- ment ofEntomology, University ofCal- scription, figures of the male dorsal habitus ifornia, Riverside and genitalia, and distributional information. UMNZ B. M. OConner, Museum of Zoology, A key to species is presented for Autumni- University of Michigan, Ann Arbor miris and Litomiris. The genitalic terminol- UNAM H. Brailovsky, Instituto de Biologia, ogy follows Kelton (1959) and Davis (1955) Universidad Nacional Autonoma, modified Schwartz All mea- Mexico, D. F. as by (1987). USNM T. J. Henry, United States National surements are in millimeters. Museum of Natural History, Washing- ton, D.C. USU W. J. Hanson, Department of Biology, ACKNOWLEDGMENTS Utah State University, Logan I thank the following individuals and their ZMH A. Jansson, University Zoological Mu- respective institutions for providing material seum, Helsinki, Finland in their care. The abbreviations listed are used in the Material Examined sections: I also thank the following individuals: B. AMNH R. T. Schuh and G. M. Stonedahl, Hall, Corvallis, Oregon, for the fine illustra- American Museum of Natural History, tions of the adult female and fifth instar New York nymph ofLitomiris curtus; P. H. Arnaud, Jr. BYU S. L. Wood, Monte L. Bean Museum, and V. Lee provided information concerning Brigham Young University, Provo, the type specimens of E. P. Van Duzee de- Utah posited in the CAS; the staff of the Photog- CAFA A. R. Hardy, California Department of raphy department (AMNH) assisted with Food and Agriculture, Sacramento the dorsal habitus photographs; and A. As- CAS P. H. Arnaud, Jr., California Academy quith, J. D. Lattin, R. T. Schuh, and G. M. of Sciences, San Francisco CNC R. Foottit and L. A. Kelton, Agriculture Stonedahl kindly reviewed the manuscript Canada, Biosystematics Research Insti- and provided many constructive suggestions. tute, Ottawa Financial support for fieldwork was received CU J. K. Liebherr, Department of Ento- from NSF Grants DEB 81-13401 and BSR mology, Cornell University, Ithaca, New 86-06621 to R. T. Schuh. York KU P. D. Ashlock and A. Slater, Snow En- tomological Collection, University of SYSTEMATICS Kansas, Lawrence AUTUMNIMIRIS, NEW GENUS LACM C. L. Hogue, Los Angeles County Mu- seum of Natural History, California TYPE SPECIES: Megaloceroea koebelei Van LSU J. Chapin and D. A. Rider, Entomology Duzee. Museum, Louisiana State University, DiAGNOSIS: Distinguished from other gen- Baton Rouge era of the Stenodema group by the shining, OSDA K. Goeden, Oregon State Department of Agriculture, Salem deep punctures of the dorsal surface; the la- OSU J. D. Lattin and P. W. Oman, System- bium usually reaching the metacoxae; the eyes atic Entomology Laboratory, Oregon slightly removed from the pronotum; and State University, Corvallis these features of the genitalia: Male. vesica TAM J. C. Schaffner, Department of Ento- with one simple lobal sclerite (figs. 2d, Sd, mology, Texas A&M University, Col- 7d), sometimes with associated adjacent spi- lege Station nulae (figs. 4d, 9d); distal portion of right 1989 SCHWARTZ: SOUTHWEST STENODEMINI 3 paramere slightly expanded (figs. 2c, 4c, 5c, apex abruptly narrowed, rounded, with one 7c, 9c); shaft of left paramere stout and with subapical point. Right paramere: Distal por- one subapical point (figs. 2b, 4b, 5b, 7b, 9b). tion slightly expanded, with small, pointed, Female. small to medium, ovoid sclerotized ventrally directed apex. Vesica: Aperture of rings; dorsal labiate plate forming a ring at secondary gonopore incomplete dorsally, and the base of the genital chamber (fig. 7f). with collapsed appearance; single, large lobal DEScRIPrIoN: Dorsal Aspect: Total length sclerite, sometimes continuous with small 5.50-8.40; general coloration testaceous to spinulae basally; small, internal U-shaped rufus; usually variously marked with fuscous sclerite adjacent and behind secondary gono- to piceous bilateral vitta on head, pronotum, pore; membrane with small sclerite to left of scutellum, hemelytra, and cuneus, some- gonopore. Female Genitalia: Sclerotized rings: times with rufus to piceous markings on an- Figure 7f. Open, rectangular, of small or tennae, scutellum medially, knees oflegs, and moderate size. Dorsal labiate plate: Narrowly venter bilaterally; surface smooth with deep developed laterally, adhering ramae, obsolete punctures; frons and vertex with sparsely dis- caudally, with posteriormost edge narrowly tributed punctures; collar and calli deeply spanning and forming at the base of the gen- punctate, sometimes punctures faint and ital chamber. Ventral labiate plate: Present sparsely distributed; mesoscutum smooth; behind lateral one-halfofrings. Posterior wall: scutellum, clavus, corium, and embolium Inter-ramal sclerite: Moderately deep with with variously distributed punctures. Vesti- straight ventral margin. Median process: Well ture: With moderately distributed, short, re- sclerotized, extending dorsad and ventrad of cumbent, pale simple setae, and sometimes sclerite, extending anteriad into dorsal struc- with moderate to long, erect, simple setae. ture, with plowlike plate posteriorly. Dorsal Head: Triangular or subquadrate in dorsal structure: Small, pointed, surrounding ante- view, subrectangular or rectangular in lateral rior projection ofmedian process, saclike. In- view; slightly separated from pronotum; ver- ter-ramal lobes: Large, obscuring sclerite; tex ecarinate and slightly rounded; dorsal sur- membranous extension surrounding periph- face smoothly curved from vertex to apex of ery of dorsal structure. frons; apex of frons rounded and produced ETYMOLOGY: From the Latin autumn and slightly anterodorsad ofbase oftylus; antero- miris, referring to the autumn occurrence of dorsal portion of tylus rounded and pro- members ofthe genus on cool season grasses duced; labium reaching metacoxae, some- in the desert southwest of North America; timesjust reaching distal end ofmesosternum, masculine. segment I reaching xyphus. Antennae: Seg- DIscussIoN: This genus is proposed to con- ment I of uniform thickness throughout, not tain four species previously placed in Lito- bowed. Pronotum: Subtriangular with proe- miris Slater, Megaloceroea Fieber, Neotro- pisternum rounded and produced, visible in picomiris Carvalho and Fontes, and dorsal view, with distinct anterior and pos- Porpomiris Berg, and the new species, gua- terior lobes, posterior lobe rounded and pro- dalupe. All species possess vesicae with one duced dorsad of anterior lobe; calli weakly furrowed lobal sclerite (with prominently differentiated, confluent anteromedially, not notched or minutely spinose margins) located reaching lateral margins ofpronotum; lateral on the dorsalmost portion ofthe