Clifford D Ferris

University of Wyoming | UW · Department of Electrical and Computer Engineering

Oeneis tanana A. Warren & Nakahara is described from the Tanana River Basin in southeastern Alaska, USA. This new taxon belongs to the bore group of Oeneis Hübner, [1819] and is apparently closest to O. chryxus (E. Doubleday, [1849]) by morphology, including its larger size and similarity of the female genitalia. In wing patterns and COI mitochondr...

The genus Protorthodes McDunnough is revised to include 15 species including P. ustulata Lafontaine, Walsh & Ferris, sp. n., from southwestern United States, P. texicana Lafontaine, sp. n., from Texas and Mexico, and P. mexicana Lafontaine, sp. n., from Mexico. A new genus, Nudorthodes Lafontaine, Walsh & Ferris, is proposed for two species formerl...

This article represents the first published complete checklist of the moth taxa, resident and occasional, recorded to date for Alaska. Seven-hundred and ten species are listed. General species distribution ranges within the state are included. Three North American records are listed for the first time: Cydia cornucopiae (Tengström); Eucosma hohenwa...

The new phycitine species Lijiographis unicolor is described from Catron Co., New Mexico. Adults and genitalia are illustrated.

The new species Antaeotricha utahensis is described from San Juan Co., Utali and Catron, Grant and Santa Fe counties, New Mexico. Adults and genitalia are illustrated.

The new genus Utah is described from moths collected in the San Rafael Reef area of eastern Utah and in Juab Co., western Utah near the Nevada border. The type species Utah sanrafaelensis is described. Adults and genitalia are illustrated.

Comparison of the types of Ixala klotsi (Sperry) and Pterospoda nigrescens (Hulst) shows that they are the same species, with Ixala klotsi a synonym of Pterospoda nigrescens. A lectotype of Selidosema nigrescens is designated, and the types of Selidosema nigrescens and Ixala klotsi are illustrated. Male and female habitus and genitalia of Pterospod...

Based on genitalic studies, the new genus Pionenta is established for two taxa formerly placed under Antepione. The taxa hewesata and ochreata (and previously associated synonyms) are now synonomized as Pionenta ochreata. Three species of Antepione are now recognized: Antepione thisoaria, Antepione imitata, Antepione tiselaaria with the taxa comsto...

The new genus Chiricahua is described from moths collected in the Chiricahua Mtns., Cochise Co., Arizona. Two species are recognized: the new species C. lichenaria, the type species for the genus, and C. multidentata, previously placed in Biston. Adults and genitalia are iflustrated.

Duckworth (1964) reviewed the North American Stenomidae (now treated as Stenomatinae based on the revision by Hodges 1999, p. 136) and described only two new taxa: Antaeotricha fuscorectangulata (TL South Fork of Cave Creek, Chiricahua Mts., [Cochise Co.] Arizona, and Mothonica kimballi (TL Siesta Key, Sarasota County, Florida). In 1968, Jerry Powe...

Plataea polychroma Ferris & McFarland is described from seven wild caught females and six reared adults of both sexes from Cochise Co., Arizona. The early stages, adults of both sexes and genitalia are figured.

Seven species of Marimatha Walker are examined, five of which occur in North America. In addition to the existing species M. nigrofimbria (Guenee), M. tripuncta (Moschler) is reported from North America for the first time and three new species are described from southwestern North America: M. piscimala, M. squala, and M. quadrata. Marimatha albofla...

The genus Hypotrix Guenee, 1852 is synonymized with Trichorthosia Grote, 1883, Proteinania Hampson, 1905, Ursogastra Smith, 1906, and Trichagrotis McDunnough, [1929]. Four species are transferred from the genus Hexorthodes McDunnough [Hypotrix trifascia (Smith, 1891), comb. n., H. alamosa (Barnes, 1904), comb. n., T. hueco (Barnes, 1904), comb. n.,...

Eupithecia sonora, new species, is described from Sonora, Mexico and compared with its closest phenotypic congener Eupithecia flavigutta (Hulst). Adults and male and female genitalia of both species are illustrated. Additional specimens have been collected in Arizona and New Mexico.

Based upon genitalic characters, the ennomine geometrid species brunneilinearia is removed from genus Synaxis and re-turned to Metanema. The male genitalia of typical species of Synaxis and Metanema are illustrated. The female holotype, a typical male and fe-male adult, and the male and female genitalia of Metanema brunneilinearia are illustrated....

Based upon genitalic characters, the ennomine geometrid Synaxis triangulata is removed from genus Synaxls and placed in Caripeta. The genitalia of the type species of Synaxis, Caripeta, and adults and genitalia of Caripeta triangulata are illustrated.

The six species of the Acontia areli group are examined. In addition to the existing species A. areletta, A. areli, and A. areloides, three new species are described from southwestern North America: A. toddi sp. n., A. geminocula sp.n., and A. albifusa sp.n.. A key to species, descriptions, illustrations of adults and genitalia, and distribution ma...

The genus Synaxis is synonymized with Tetracis. The thirteen North American species in genus Tetracis (some formerly in Synaxis) are discussed, including descriptions of three new species from western North America: Tetracis australis, T. montanaria, T. pallidata. Two additional species, "Synaxis" triangulata and "S." brunneilinearia are excluded....

Zeiraphera unfortunana Ferris and Kruse is described from ninety specimens from Canada (type locality: Black Sturgeon Lake, Ontario) and Alaska with illustrations of the adults and genitalia. This species ranges from Nova Scotia to British Columbia, Yukon Territory, and Alaska into northern portions of the United States.

Bryolymnia anthracitaria, new species, is described from southeastern Arizona. Adults and male and female genitalia are il-lustrated, and comparison is made with the other two North American species. Additional key words: Bryolymnia anthracitaria, Bryolymnia semifascia, Bryolymnia viridimedia, Arizona, Noctuidae, taxonomy, Xyleninae According to th...

Eupithecia macfarlandi, new species, and Eupithecia penablanca, new species, from southern Arizona, and Eupithecia nonanticaria, new species, from southwestern New Mexico, southeastern Arizona, and Chihuahua, Mexico are described. Adults and male and female genitalia are illustrated. Eupithecia anticaria Walker and E. nonanticaria are compared.

The name Eupithecia deserticola McDunnough, 1946 is a junior secondary homonym of Tephroclystia deserticola Turati, 1934, now included in the genus Eupithecia Curtis. The replacement name Eupithecia jamesi Ferris and Mironov is proposed.

The male of Eupithecia cupressata Pearsall is described, and illustrations of adults and genitalia of both sexes are provided.

Eucosma aurilineana, new species, is described from five western states. The adults and male and female genitalia are illustrated, along with adults and female genitalia of two similar species, Eucosma crambitana and E. ridingsana.

Eucosma aurilineana, new species, is described from five western states. The adults and male and female genitalia are illustrated, along with adults and female genitalia of two similar species, Eucosma crambitana and E. ridingsana.

Adults and male and female genitalia of Eupithecia biedermanata and E. classicata are illustrated. The original descriptions and McDunnough's subsequent generic revision did not provide complete information on these species because of the paucity of material available for study. Based upon their respective genitalic characters and otherwise similar...

Adults and male and female genitalia of Eupithecia biedermanata and E. classicata are illustrated. The original descriptions and McDunnough s subsequent generic revision did not provide complete information on these species because of the paucity of material available for study. Based upon their respective genitalic characters and otherwise similar...

A new phycitine species, Passadenoides montanus, is described from specimens collected in Albany Co., Wyoming and Grant Co., New Mexico. The adults and male and female genitalia are illustrated.

The female of Sarata tephrella Ragonot is described for the first time. Variation in males and females is illustrated and discussed. Photos of the habitat are presented, and the larval host is postu- lated.

Nasusina vallis, new speices, is described from Mesa Co., Colorado and compared with its appa-rent closest relative Nasusina inferior Hulst. The adults and male and female genitalia of both spe-cies are illustrated, along with pertinent head and leg structures.

A new species in the geometrid moth genus Glaucina is described from Wyoming and Colorado. The previously unknown female of Glaucina nephos Rindge is described from Wyoming specimens.

SPICE generation of the output signals from electronic oscillator circuits is obtained by transient analysis. Simulation success is software specific and depends upon how the transient analysis function is configured. Different tricks, which are oscillator configuration specific, may be applied to achieve simulation output. In the final analysis, o...

A second-generation instrumentation system is described for obtaining qualitative (and inferred quantitative) measurements of breast engorgement in postpartum nursing mothers. It also has application in evaluating the extent of edema in tissue. The system uses an LVDT and associated electronics.

To assist in the identification of physical/physiological parameters obtained from in vivo rat aortic artery dynamic pressure data, the natural (mobility) mechanical circuit model was constructed. The direct electrical analog of the model thus obtained was then analyzed using SPICE. The experimental data were obtained using a Multifunction Pressure...

The traditional expression that relates the transconductance (g _m) to collector current in a bipolar junction transistor is based upon germanium devices. When this expression is used to estimate performance of modern silicon bipolar-junction transistors (BJTs), significant errors may result. An alternative expression for g_m w...

Several decades ago, radiofrequency design was an integral subject in many undergraduate electrical engineering curricula. In recent years, however, practice-oriented courses have given way to theoretical presentations of communication theory. Several years ago, industrial recruiters commented to us about the lack of formal training in radiofrequen...

This paper describes several retrofit designs to correct operational problems associated with small bench-type blood cell counters. Replacement electronic circuits as well as modifications to the vacuum systems are discussed.

This paper presents two general designs for true constant-current stimulators suitable for biomedical applications. Both designs utilize the LM334 3-terminal, adjustable current source. One design applies to pulsed-mode applications and permits the use of monophasic or biphasic pulses with independent adjustment of pulse amplitude, duration, and se...

This paper presents a general design method that does not require the use of switched transformers or inductors to produce high-voltage output signals when implementing transcutaneous electrical stimulators. This method permits the use of arbitrary stimulating signals, as opposed to the spike or rectangular-pulse waveforms typically produced with c...

Blood cell counters that operate on the Coulter principle of an electrical resistance change when a cell passes through a small sampling orifice are especially sensitive to electrical noise. The sampling probe is immersed in an electrolyte (isotonic diluent for blood cells), which in itself presents an electrochemically noisy environment. The probe...

Eighty-three butterfly species are credited to the fauna of the Yukon Territory, with an additional three deemed questionable. Species enumerated represent a compilation of both historic and current literature, and the records of collectors. The total includes previously unpublished records from the Canadian National Collection, but does not includ...

Methods are described for the design and fabrication of polarographic oxygen-sensing electrodes (Clark electrodes). The discussion includes: general physical configuration; suitable materials for the sensor body and the metallic electrodes; membrane material; filling electrolyte; pressure and temperature effects; and, basic requirements for the fro...

The general design guidelines stressed simplicity of design and the use of integrated circuits and OEM modules, where possible, rather than the use of discrete active components. The philosophy behind this was to give the students an appreciation of the real world and the costs involved in engineering design. For example, it is considerably cheaper...

A versatile pulse generator is described. All pulse variables can be adjusted, including repetition rate, amplitude and duration. The user can select either monophasic or biphasic pulses. An adjustable delay control permits separation of the positive and negative phases in time.

This paper describes the design of a digital readout hemoglobinometer that reads human blood hemoglobin levels directly in g/dl (g%). The instrument is based on the cyamethemoglobin method for determining hemoglobin. Only end-point calibration is necessary.

A code-generating and display system is described which permits an individual who has lost vocal voluntary motor ability to communicate. The subject sustained severe brain damage in an automobile accident which left him without the power of speech or any significant motor ability, although he is not by definition quadriplegic. He lacks reliable con...

Following the action taken by Brown (1968), Ferris (1977) in his recent revision of Epidemia dorcas (Kirby) and E. helloides (Boisduval) cited the type locality for E. dorcas florus (W. H. Edwards) as “ ‘Taken on Red Deer River B. Am., by Captain Geddes’ — later restricted by Edwards to ‘Garrett's Ranche, Br. Amer.’; actually Didsbury, just north o...

A scanning densitometer has been developed for reading electrophoresis and chromatography plates. In place of a conventional tungsten light source, an array of light-emitting diodes has been used. The emission spectra of the LED's has been matched to the absorption spectra of the strains used on the plates. The photosensor is a high sensitivity pla...

Harmonic wave propagation is considered in a two-layered cylinder of dissimilar but transversely isotropic materials such as bone. The model includes the approximate piezoelectric behavior of long bone and the frequency equation is shown to constitute a 16th-order determinant. A frequency equation is also derived for the nonpiezoelectric case. Thou...

This paper describes a system designed to permit an individual who has lost vocal ability as well as essentially all voluntary motor ability, to communicate. The subject sustained severe brain damage in an automobile accident which left him without the power of speech or any significant motor ability, although he is not technically a quadriplegic....

Computer data derived from theoretical treatments of the orientation of ellipsoidal particles in alternating fields is compared with experimental data from microscopic studies on Euglena gracilis, and elongated free-living flagellate. Computed data based upon a theoretical treatment by SAITO, SCHWAN and SCHWARZ showed good agreement with experiment...

The systems were developed to have a method for measuring the return of heart rate to baseline, following exercise, as a measure of physical conditioning. As work on the initial system progressed, it became evident that it would also be useful in health spas for the same purpose, and in clinical monitoring of cardiac patients. The basic system perf...

Although microelectrodes have been in use for many years and there is a wealth of literature concerning their fabrication and application, there is little reported on waveform distortion produced by these electrodes. This paper reports experimental studies conducted to determine the effects of ac electrode polarization in microelectrode recording s...

The construction of a small glass-encased electrode for measuring pO//2 (oxygen pressure or tension) in cerebrospinal fluid is described. These electrodes have been developed for experiments involving monkeys.