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First description of the adult male of Epeorus aculeatus Braasch (Ephemeroptera: Heptageniidae)
No full textWebb, J. M., Mccafferty, W. P. (2006): First description of the adult male of Epeorus aculeatus Braasch (Ephemeroptera: Heptageniidae). Zootaxa 1277: 65-68, DOI: 10.5281/zenodo.17336
FIGURES 11–17. 11 in Contribution to the taxonomy of Eastern North American Epeorus Eaton (Ephemeroptera: Heptageniidae)
No full textFIGURES 11–17. 11, Epeorus pleuralis, Gill 1, lamella; 12, Epeorus namatus, gill 1, lamella; 13, Epeorus vitreus, abdominal segment 7; 14, Epeorus namatus, maxilla; 15, Epeorus dispar, head capsule; 16, Epeorus subpallidus, apex of hind femur; 17, Epeorus subpallidus, pronotum, dorsal view.Published as part of Webb, J. M. & Mccafferty, W. P., 2006, Contribution to the taxonomy of Eastern North American Epeorus Eaton (Ephemeroptera: Heptageniidae), pp. 57-64 in Zootaxa 1128 on page 62, DOI: 10.5281/zenodo.17185
FIGURES 1–10. Epeorus punctatus. 1 in Contribution to the taxonomy of Eastern North American Epeorus Eaton (Ephemeroptera: Heptageniidae)
No full textFIGURES 1–10. Epeorus punctatus. 1, head capsule; 2, labrum; a: dorsal, b: ventral; 3, left mandible; 4, right mandible; 5, maxilla; 6, hind femur; 7, apex of hind femur; 8, abdominal segment 7; 9, Gill 1, lamella; 10, gill 6, lamella.Published as part of Webb, J. M. & Mccafferty, W. P., 2006, Contribution to the taxonomy of Eastern North American Epeorus Eaton (Ephemeroptera: Heptageniidae), pp. 57-64 in Zootaxa 1128 on page 61, DOI: 10.5281/zenodo.17185
FIGURES 1–10. Epeorus punctatus. 1 in Contribution to the taxonomy of Eastern North American Epeorus Eaton (Ephemeroptera: Heptageniidae)
No full textFIGURES 1–10. Epeorus punctatus. 1, head capsule; 2, labrum; a: dorsal, b: ventral; 3, left mandible; 4, right mandible; 5, maxilla; 6, hind femur; 7, apex of hind femur; 8, abdominal segment 7; 9, Gill 1, lamella; 10, gill 6, lamella.Published as part of Webb, J. M. & Mccafferty, W. P., 2006, Contribution to the taxonomy of Eastern North American Epeorus Eaton (Ephemeroptera: Heptageniidae), pp. 57-64 in Zootaxa 1128 on page 61, DOI: 10.5281/zenodo.17185
Epeorus vitreus
No full textKey to known larvae of the eastern north American vitreus species group 1. Lamellae of first pair of gills each with large anterior expansion, usually meeting or nearly meeting ventrally (Fig. 11) [lamellae of gills 1 of E. namatus only slightly expanded anteriorly (Fig. 12)]; subdorsal setae on femora pectinate; maxillae with more than one seta at base of apical tooth complex (Fig. 14); dorsal projection at apex of femora blunt; lamellae of gills 7 usually with longitudinal fold................................. ................................................................................................ E. pleuralis species group Lamellae of first pair of gills cordate, not expanded anteriorly (Fig. 9); subdorsal setae of femora simple; maxillae with single fimbriate seta at base of apical tooth complex; dorsal projection at apices of femora blunt or sharp; lamellae of gills 7 usually without longitudinal fold .................................................................... E. vitreus species group, 2 2. Dorsal (outer) posterolateral projections of abdomen distinctly longer than ventral projections (Fig. 13) .............................................................................................. E. vitreus Dorsal (outer) posterolateral projections of abdomen subequal to or only slightly longer than ventral posterolateral projections (Fig. 8)................................................. 3 3. Abdominal terga each with small but distinct median protuberance on posterior margin, increasing in size posteriorly; head distinctly wider anteriorly (Fig. 15) and nearly uniform brown; gills 7 with longitudinal fold .................................................. E. dispar Abdominal terga without posterior median protuberances or terga 2 or 3–7 each with small median protuberance, decreasing in size posteriorly; head subrectangular (Fig. 1), with four large pale markings; gills 7 without longitudinal fold............................ 4 4. Dorsal projection at apex of hind femur sharply pointed (Fig. 16); pronotum with small pair of tubercles (Fig. 17); mature larvae>8.0 mm long ................ E. subpallidus Dorsal projection at apex of hind femur bluntly pointed (Fig. 7); pronotum without pair of small tubercles; mature larvae 6.0–8.0 mm long ............................. E. punctatusPublished as part of Webb, J. M. & Mccafferty, W. P., 2006, Contribution to the taxonomy of Eastern North American Epeorus Eaton (Ephemeroptera: Heptageniidae), pp. 57-64 in Zootaxa 1128 on pages 62-63, DOI: 10.5281/zenodo.17185
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Leptohyphes brevissimus Eaton 1892
No full textLeptohyphes brevissimus Eaton 1892 Leptohyphes brevissimus Eaton, 1892:12; Traver, 1958; Allen, 1978. Diagnosis: Because only three females are available, it is not possible at this time to diagnosis this species from others in the genus. Description: Male Adult: Unknown. Female Adult (pinned): Length. Body, 2.0 mm; forewing, 4.0 mm. Body dark brown to black. Legs brown becoming pale brown distally. Forewing (Fig. 25E): reddish-brown; vein CuP not strongly curved towards A; vein ICu 2 free ; ICu 1 attached basally to CuA by crossvein; MP 2 united basally to IMP by cross veins. Legs: yellowish to pale reddish-brown to grey, with basal blackish shading. Hind wing absent. Abdomen. Dark brown with black markings. Larva: Unknown. Distribution: Known only from the type locality in Zapote, Guatemala. FIGURES 33–36. Leptohyphes lestes, larva. 33, head and prothorax (dorsal) [C]. 34, foreleg (dorsal) [B]. 35, metaleg (dorsal) [E]. 36, hind claw (ventrolateral) [D]. Scale bars (mm): A = 1.5; A = 0.05; B, C, E = 0.50.; D = 0.1. Discussion: Little is known concerning this species, which was described from Guatemala on the basis of three dried female adults. The type locality, Zapote, is located in the state of Escuintla, 12 km. northwest of the town of Escuintla (N14°23’; W90°52’). The original description was very vague, and consisted of only three sentences. It is highly questionable if a male or larva can ever be associated with this species. As is the situation with Leptohyphes berneri, there is a strong possibility that a previously described species of Leptohyphes known only from the larval stage may be synonymous with this species. During a collecting trip to Guatemala in 2007, the type locality of this species (the Río Zapote, near the town of Zapote) was located by DEB with the assistance of a Guatemalan entomologist. The Río Zapote is about 8 meters wide, swiftly flowing, with rock/rubble substrate, ranges in depth from a few centimeters to over a meter, and flows through numerous coffee plantations. Numerous Leptohyphes larvae were collected from the type locality, representing at least three species of Leptohyphes. Until rearing studies can be conducted and the larva associated with the adult, the status of this species will be very uncertain. Primary Type material examined: Leptohyphes brevissimus, 1 female adult (pinned), designated as a type specimen; 3 associated slides (1 with FW, 1 with 3 legs, 1 with last 4 abdominal segments/female genitalia). GUATEMALA: Zapote, G.C. Champion [BMNH].Published as part of Baumgardner, D. E. & Mccafferty, W. P., 2010, Revision of the genus Leptohyphes Eaton (Ephemeroptera: Leptohyphidae) in North and Central America, pp. 1-33 in Zootaxa 2360 (1) on pages 10-13, DOI: 10.11646/zootaxa.2360.1.1, http://zenodo.org/record/530501
Leptohyphes priapus Traver 1958
No full textLeptohyphes priapus Traver 1958 Leptohyphes priapus Traver, 1958:86; Allen, 1978. Diagnosis: Leptohyphes priapus was distinguished from other Leptohyphes adults on the basis of its reddish brown body and an abdomen which is much paler than the thorax. This description is very similar to other Leptohyphes, and does not allow for definitive diagnosis from other known species. Description: Male Adult: Length. Body, 4.0–5.0 mm; forewings, 5.0–5.5 mm; hind wings, 1.5–2.0 mm. General coloration reddish-brown; abdomen yellowish with reddish-brown markings. Head. Yellowish to pale reddish-brown; antennae yellowish. Thorax. Overall reddish-brown, yellowish medially, with pale lateral areas; sterna yellowish with dark reddish-brown margins. Forewing: membrane pale brown; longitudinal veins light reddish-brown; costal vein reddish-brown; vein CuP not strongly curved towards A; vein ICu 2 united basally with ICu 1; ICu 1 attached basally with CuP by crossvein; MP 2 united basally to MP 1 and CuA by cross vein. Hind wing: with elongate costal process, and three longitudinal veins; hind margin of fore- and hind wings fringed with filiform setae. Legs: pale reddish-brown. Abdomen. Yellowish, banded with light reddish brown. Genitalia: forceps three segmented; first segment short, stout; second segment elongate; third segment small, globular. Penes with basal half fused, distal parts divergent, “Y” shaped, with small spine on apical margin of each lobe. Distribution: Known only from the type locality in Costa Rica. Discussion: Described by Traver (1958) based upon a long series of male adults from the Río Pedregoso, a river which is evidently located in the Nicoya Complex of western Costa Rica. No other collections of this species have been reported since its original description. Type material examined: PARATYPES: COSTA RICA: Río Pedregoso, February 1939, D.L. Rounds, 7 male adults in alcohol, in 3 vials [FAMU]. Other material examined: None.Published as part of Baumgardner, D. E. & Mccafferty, W. P., 2010, Revision of the genus Leptohyphes Eaton (Ephemeroptera: Leptohyphidae) in North and Central America, pp. 1-33 in Zootaxa 2360 (1) on page 24, DOI: 10.11646/zootaxa.2360.1.1, http://zenodo.org/record/530501
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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