Two new genera of Nearctic Chamaemyiidae (Diptera: Lauxanioidea) associated with Cinara aphids (Hemiptera: Aphididae) on Pinus

Zootaxa ◽  
2020 ◽  
Vol 4852 (1) ◽  
pp. 61-82
Author(s):  
STEPHEN D. GAIMARI

Two new genera of Chamaemyiidae (Diptera: Lauxanioidea) are described and illustrated, including: Chamaethrix gen. nov. (type species Chamaethrix necopina sp. nov.), possibly a predator of Cinara ponderosae (Williams) on Pinus ponderosa in the southwestern United States; and Vitaleucopis gen. nov. (type species Vitaleucopis nidolkah sp. nov.; other included species Vitaleucopis astonea (McAlpine), comb. nov., and Vitaleucopis scopulus sp. nov.), predators of Cinara aphids and possibly adelgids on Pinaceae in western North America. Immature stages are discussed or described and illustrated for some taxa, including the eggs of Chamaethrix necopina and Vitaleucopis nidolkah; and the third instars and puparia of Vitaleucopis nidolkah. 

1978 ◽  
Vol 110 (S106) ◽  
pp. 21-86 ◽  
Author(s):  
J.M. Campbell

AbstractThe tribe Coryphiini Hatch is redefined to include six genera and 18 species from North America. Two new genera are described: Gnathoryphium (type-species G. mandibulare n. sp.) and Holoboreaphilus (type-species Boreaphilus nordenskioeldi Maklin). Seven new species are described: Coryphium nigrum from the northeastern United States and Subhaida californica, S. aptera, S. monticola, S. utahensis, S. sinuata, and Gnathoryphium mandibulare from western North America. The genus Occiephelinus Hatch from western North America and Planeboreaphilus Shibata from Japan are considered junior synonyms of Coryphium Stephens. The western North American species formerly placed in Ephelinus Cockerell are transferred to the genus Coryphium. Pseudohaida ingrata Hatch is transferred to the genus Subhaida Hatch. Boreaphilus americanus Notman is placed in synonymy with B. henningianus C.R. Sahlberg.All genera and species are described. Habitus drawings, and line drawings of the antenna, labrum, maxilla, mandible, mentum, and labium are presented for at least one species of each genus. The aedeagus is illustrated for all the species except two that are known only from females.Of the species treated, three are Holarctic in distribution, four are restricted to eastern North America, and 11 are endemic to the mountainous areas of western North America.All available biological information for each species is included and a key is presented to aid in the identification of all the genera and species of the tribe in North America.


1987 ◽  
Vol 61 (5) ◽  
pp. 960-973 ◽  
Author(s):  
Jed Day

Large palaeotrochid gastropods of the genera Floyda Webster (1905a) and Turbonopsis Grabau and Shimer (1909) occur in the late Frasnian Lime Creek Formation of Iowa. Floyda concentrica was designated as the type species of Floyda by earlier workers (Webster, 1905a; Knight, 1941), but is a junior synonym of F. gigantea (Hall and Whitfield, 1873). Three of five species and subspecies of Floyda described from the Lime Creek (Floyda concentrica, F. concentrica multisinuata, and F. gigantea depressa) are considered synonyms of the type species F. gigantea; the fifth species, F. gigantea hackberryensis, is here reassigned to the closely related genus Turbonopsis. Both F. gigantea and T. hackberryensis are redescribed using the original types and additional hypotype material from the collections of Charles Belanski.Floyda, first known from late Givetian rocks of the Rhenish Slate Mountains in Germany, is widespread in the United States Midcontinent and western North America by early Late Devonian time. Turbonopsis was endemic to the Appohimchi Subregion of the Eastern Americas Realm prior to the Taghanic Onlap, and appears to have remained so until late Frasnian time when it migrated to western North America.Eustatic sea-level highstands during the Middle and Late Devonian are thought to have breached barriers to migration, allowing both Floyda and Turbonopsis to disperse by prevailing oceanic currents from the United States Midcontinent into western North America during the late Frasnian. The expected oceanic current patterns of the Middle and Late Devonian paleogeographic reconstructions of Heckel and Witzke (1979, figs. 3, 5) adequately account for the known distribution and dispersal of Devonian palaeotrochid gastropods.The Palaeotrochidae underwent extinction prior to the latest Frasnian. Floyda, Turbonopsis, and Westerna became extinct during the onset of the last eustatic deepening event prior to the close of the Frasnian. The extinction of the palaeotrochid gastropods as well as other invertebrate groups may have been the result of restriction or near elimination of shallow warm-water, well-oxygenated shelf habitats by the onlap of cold anoxic bottom waters prior to latest Frasnian time.


1941 ◽  
Vol 73 (7) ◽  
pp. 127-132 ◽  
Author(s):  
F. C. Harmston ◽  
G. F. Knowlton

The following paper deals with six apparently undescribed species of Hercostomus collected from localities in the western United States and Canada.Hercostomus chaetilamellus n. sp.Male. Length, 4 mm.; of wing, 3.8 mm. Face wide, silvery white. Front silvery white, concolorous with face. Antennae black, the third joint about as long as broad, evenly rounded below. Orbital cilia white, the uppermost bristle black. Palpi and proboscis yellow.


Zootaxa ◽  
2017 ◽  
Vol 4290 (3) ◽  
pp. 571
Author(s):  
MARIO G. IBARRA-POLESEL ◽  
NESTOR G. VALLE ◽  
JHON C. NEITA-MORENO ◽  
MIRYAM P. DAMBORSKY

Phileurus valgus (Olivier) (Coleoptera: Scarabaeidae: Dynastinae: Phileurini) is a common species widely distributed from the southern United States to Argentina and the West Indies. In this work the immature stages are described and illustrated based on specimens from Argentina. A key to the known third-stage larvae of New World Phileurini species is provided and updated. Notes on the life cycle and natural history are also included. 


Zootaxa ◽  
2008 ◽  
Vol 1766 (1) ◽  
pp. 53 ◽  
Author(s):  
EDWARD L. MOCKFORD ◽  
PAUL D. KRUSHELNYCKY

Sampling of arthropods in ground and woody vegetation habitats in highland areas on the islands of Hawaii and Maui revealed six species of psocids of the genus Liposcelis. Three are new and are here described. L. maunakea sp. n. and L. volcanorum sp. n. are closely related and form a small species complex together with L. nasus Sommerman and L. deltachi Sommerman from southwestern United States and northern Mexico. A key to the species of this complex is included. The third new species, L. kipukae sp. n., is a member of group II-C with only 5 ommatidia in the eye. A key to the known species of group II-C with fewer than 7 ommatidia in the eye is included. First Hawaiian records are presented for L. bostrychophila Badonnel, L. deltachi, and L. rufa Broadhead. The first known males of L. bostrychophila are reported and described. This species is very widespread, but generally parthenogenetic.


1981 ◽  
Vol 59 (10) ◽  
pp. 2038-2047 ◽  
Author(s):  
C. Błaszak

Three new monotypic genera in the family Zerconidae (Acari: Gamasida) from the United States are described: Krantzas gen.nov. (type species K. mirificus sp.nov.), Lindquistas gen.nov. (type species. L. amyihetes sp.nov.), and Hypozercon gen.nov. (type species. H. macleani sp.nov.). Krantzas is related to genera characterized by absence both of adgenital shields and a single opening of glands gv2, and is also related to genera characterized by peritremal shields terminating truncately behind the fourth pair of coxae. In this genus the additional lateroventral shield is situated between the peritremal and ventroanal shields. Lindquistas is related to genera characterized by the peritremal shield terminating truncately behind the fourth pair of coxae and by having two short, smooth peritremal setae. Members of this genus are similar to those of Macrozercon Błaszak and Bledas Halašková. Hypozercon is related to genera characterized by having the peritremal shields extended posteriorly and having two unequal setae on the peritremal shield. Members of this genus are similar to those of Mesozercon Błaszak and Neozercon Petrova.


1984 ◽  
Vol 116 (10) ◽  
pp. 1293-1300
Author(s):  
G. G. E. Scudder

AbstractA new genus of Gonianotini, Spinigernotus, is described with Sphragisticus simulatus Barber 1918 as type-species. S. simulatus, known only from New Mexico, is reported from Mexico. The new genus Cordillonotus, and type-species C. stellatus, are described from British Columbia, California, Oregon, and Washington. Cordillonotus is tentatively placed in the tribe Rhyparochromini.


1982 ◽  
Vol 114 (11) ◽  
pp. 1077-1082 ◽  
Author(s):  
H. J. Teskey

AbstractHybomitra enigmatica n. sp., previously confused with Hybomitra sonomensis (O.S.), is described in larval, pupal, and adult stages and compared with the latter species and with H. phaenops (O.S.). Hybomitra philipi Stone is synonymized with H. sonomensis. The distribution of these species in western North America is given.


Zootaxa ◽  
2017 ◽  
Vol 4247 (2) ◽  
pp. 181
Author(s):  
BRYAN K. EYA

As currently defined, the genus Deltaspis Audinet-Serville, 1834, contains 16 species ranging in distribution from the southwestern United States to eastern Mexico. However, the generic distinction between Deltaspis and its closely allied genera, such as Crossidius LeConte, 1851 and Muscidora Thomson, 1864, is in need of clarification. According to Audinet-Serville, Deltaspis is so named due to its distinctive triangular scutellum (i.e., Δετα, delta, ασπιζ écusson), which is actually a commonly shared character of all these genera. Members of the tribe Trachyderini Dupont (1836), which includes the above genera, also have mandibles with an emarginate-truncate apex with the edge chisel-like or bifid. This modification of mouthpart appears to be for consumption of pollen and/or petals from composite flowers visited by the adult beetles (Krenn et al., 2005; Beierl & Barchet-Beierl, 1999). Other genera from this tribe with this modification of mandibles from North America, and mostly from Mexico, include: Chemsakiella Monné, 2006, Giesbertia Chemsak & Linsley, 1984, Hoegea Bates, 1885, Neocrossidius Chemsak, 1959, Paroxoplus Chemsak, 1959, Plionoma Casey, 1912, Schizax LeConte, 1873, and Tylosis LeConte, 1850. The remainder of Trachyderini genera have unmodified or simple mandibles with apex acute. 


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