154,344 research outputs found
Jonathan D. Katz at the Queer History of Fashion Symposium
No full textJonathan D. Katz, director of the doctoral program in visual studies at the SUNY Buffalo, presents "Queer Self-Fashioning" at The Museum at FIT's 13th fashion symposium, A Queer History of Fashion, held November 8-9, 2013. This is an edited version of the full talk, which will be available for check out at the Gladys Marcus Library of FIT. The first American academic tenured in the field of queer studies, Jonathan Katz founded the Harvey Milk Institute
Assessing stool quantities generated by three specific Kato-Katz thick smear templates employed in different settings.
No full textBACKGROUND
The Kato-Katz technique is recommended for the diagnosis of helminth infections in epidemiological surveys, drug efficacy studies and monitoring of control interventions. We assessed the comparability of the average amount of faeces generated by three Kato-Katz templates included in test kits from two different providers.
METHODS
Nine hundred Kato-Katz thick smear preparations were done; 300 per kit. Empty slides, slides plus Kato-Katz template filled with stool and slides plus stool after careful removal of the template were weighed to the nearest 0.1 mg. The average amount of stool that was generated on the slide was calculated for each template, stratified by standard categories of stool consistency (i.e. mushy, soft, sausage-shaped, hard and clumpy).
RESULTS
The average amount of stool generated on slides was 40.7 mg (95 % confidence interval (CI): 40.0-41.4 mg), 40.3 mg (95 % CI: 39.7-40.9 mg) and 42.8 mg (95 % CI: 42.2-43.3 mg) for the standard Vestergaard Frandsen template, and two different templates from the Chinese Center for Disease Control and Prevention (China CDC), respectively. Mushy stool resulted in considerably lower average weights when the Vestergaard Frandsen (37.0 mg; 95 % CI: 34.9-39.0 mg) or new China CDC templates (37.4 mg; 95 % CI: 35.9-38.9 mg) were used, compared to the old China CDC template (42.2 mg; 95 % CI: 40.7-43.7 mg) and compared to other stool consistency categories.
CONCLUSION
The average amount of stool generated by three specific Kato-Katz templates was similar (40.3-42.8 mg). Since the multiplication factor is somewhat arbitrary and small changes only have little effect on infection intensity categories, it is suggested that the standard multiplication factor of 24 should be kept for the calculation of eggs per gram of faeces for all investigated templates
Testing the Limits. An Interview with Jonathan D. Katz
No full textIn this interview we discuss Katz’ experiences as a queer art historian—contextualized by the recent history of the field in the United States—that reveal his methodological quest to account for the diversification of the identities not only of those who practice art history but also of the key subjects under consideration
Erinnerungen an meinen Vater David Katz
No full textAus der Sicht seines im Jahre 1920 geborenen Sohnes wird eine sehr persönliche Erinnerungsbilanz an seinen Vater, den deutschen und später schwedischen Psychologen David Katz (1884-1953), vorgelegt. Eingangs wird darauf verwiesen, dass es bereits zwei Veröffentlichungen wissenschaftlicher Art zum Lebenslauf von Katz gebe. Die eigenen Darstellungen sind eher auf die Ereignisse mit und in der Familie bezogen und sind eher wertvoll als atmosphärische Schilderungen eines Insiders. Als zeitliche Fixpunkte lassen sich nennen: Geburt 1884 in einfachen Verhältnissen, Teilnahme am 1. Weltkrieg, Ruf auf die neu geschaffene Psychologieprofessur in Rostock 1919, Amtsenthebung bei Machtantritt Hitlers, Emigration nach England 1933, Ruf auf eine wiederum neu geschaffene Professur in Stockholm 1937 und Übersiedelung nach Schweden, 1951 Präsident des 13. Internationalen Kongresses für Psychologie in Stockholm, Tod 1953. Der Nachlass von D. Katz befindet sich teils in Psychologischen Institut der Universität Stockholm, teil im Besitz des Autors Theodor Katz.peerReviewedpublishedVersio
Coauthor prediction for junior researchers
No full textResearch collaboration can bring in different perspectives and generate more productive results. However, finding an appropriate collaborator can be difficult due to the lacking of sufficient information. Link prediction is a related technique for collaborator discovery; but its focus has been mostly on the core authors who have relatively more publications. We argue that junior researchers actually need more help in finding collaborators. Thus, in this paper, we focus on coauthor prediction for junior researchers. Most of the previous works on coauthor prediction considered global network feature and local network feature separately, or tried to combine local network feature and content feature. But we found a significant improvement by simply combing local network feature and global network feature. We further developed a regularization based approach to incorporate multiple features simultaneously. Experimental results demonstrated that this approach outperformed the simple linear combination of multiple features. We further showed that content features, which were proved to be useful in link prediction, can be easily integrated into our regularization approach. © 2013 Springer-Verlag
Willowsia pyrrhopygia Katz 2017, sp. nov.
No full textWillowsia pyrrhopygia sp. nov. Katz Figs 5–7, 19, 20–35 Willowsia n. sp. 1 Katz et al. 2015a Willowsia sp. nov. 1 Katz et al. 2015b Type material. Holotype, USA, Florida, Okeechobee Co., Kissimmee Prairie Preserve State Park, 27.5835, - 81.05187, on vegetation, 10.viii.2011, A. Katz & J. Cech, AK11-123, 1 male on slide (INHS 810,166). Allotype, USA, Florida, Taylor Co., Econfina River State Park, 30.059533, -83.907350, on vegetation and twigs, 9.viii. 2011, A. Katz, AK 11-117, 1 female on slide (INHS 810,167). Paratypes, USA: Florida, Okeechobee Co., Kissimmee Prairie Preserve State Park, 27.5835, -81.05187, on vegetation, 10.viii.2011, A. Katz & J. Cech, AK11-123, 7 in ethanol (INHS 810,186); Florida, Okeechobee Co., Kissimmee Prairie Preserve State Park, 27.5835, -81.05187, hand collected from bark, 10.viii.2011, A. Katz & J. Cech, AK11-124, 1 on slide (INHS 810,187), 5 in ethanol (INHS 810,188); Florida, Taylor Co., Econfina River State Park, 30.059533, -83.907350, 10.viii.2011, A. Katz, hand collected from bark, adk11-116, 1 on slide (INHS 810,189); Florida, Taylor Co., Econfina River State Park, 30.059533, -83.907350, on vegetation and twigs, 9.viii.2011, A. Katz, AK11-117, 5 in ethanol (INHS 810,190). Additional material, USA: Florida, Citrus Co., Chassahowitzka National Wildlife Refuge, W Burnt Bridge Rd., 28.75996, -82.57583, elev. 9ft, hand collected on epiphytes, 12.viii.2011, A. Katz & J. Cech, AK11-135, 2 (1 female) on slides (INHS 810,168–810,169), 17 in ethanol (INHS 810,170); Florida, Citrus Co., Chassahowitzka National Wildlife Refuge, W Burnt Bridge Rd, 28.75996, -85.57583, on vegetation, 12.viii.2011, A. Katz & J. Cech, AK11-134, 1 female on slide (INHS 810,171), 25 in ethanol (INHS 810,172); Florida, Citrus Co., Chassahowitzka National Wildlife Refuge, W Burnt Bridge Rd, 28.75996, -85.57583, hand collected from leaf litter, 12.viii.2011, A. Katz & J. Cech, AK11-133, 1 in ethanol (INHS 810,173); Florida, Duval Co., Jacksonville, Chicopit Bay, West off side of Highway 1A, 30.376267, -81.436500, elev. 9ft, hand collected beating vegetation, 12.viii.2011, A. Katz & J. Cech, adk11-140, 4 in ethanol (INHS 810,174); Florida, Liberty Co., Apalochicola National Forest, 30.176650, -84.677233, 9.viii.2011, A. Katz, hand collected from bark, adk11-114, 1 on slide (INHS 810,175); Florida, Liberty Co., Apalochicola National Forest, 30.176650, -84.677233, 9.viii.2011, A. Katz, leaf litter, adk11-115, 1 in ethanol (INHS 810,176); Florida, Marion Co., Ocala National Forest, N of CR-314, 29.30076, -81.84686, elev. 105ft, hand collected under bark, 12.viii.2011, A. Katz & J. Cech, adk11-137, 4 in ethanol (INHS 810,177); Florida, Marion Co., Ocala National Forest, N of CR-314, 29.30076, -81.84686, on vegetation, 12.viii.2011, A. Katz & J. Cech, AK11-138, 1 female on slide (INHS 810,178), 17 in ethanol (INHS 810,178); Florida, Marion Co., Ocala National Forest, N of CR-314, 29.30076, -81.84686, elev. 105ft, hand collected in leaf litter, 12.viii.2011, A. Katz & J. Cech, adk11-139, 1 in ethanol (INHS 810,180); Florida, Miami- Dade Co., Everglades National Park, Pinelands Trail, 25.42298, -80.67965, on vegetation, 11.viii.2011, A. Katz & J. Cech, AK11-126, 1 on slide (INHS 810,181), 14 in ethanol (INHS 810,182); Florida, Miami-Dade Co., Everglades National Park, Pinelands Trail, 25.42298, -80.67965, hand collected from bark, 11.viii.2011, A. Katz & J. Cech, AK11-127, 1 in ethanol (INHS 810,183); Florida, Miami-Dade Co., Big Cypress National Preserve, County Rd 94, 25.760167, -81.0386, elev. 4ft, hand collected beating vegetation, 11.viii.2011, A. Katz & J. Cech, adk11-130, 2 in ethanol (INHS 810,184); Florida, Miami-Dade Co., Big Cypress National Preserve, County Rd 94, 25.760167, -81.0386, elev. 4ft, hand collected from epiphytes, 11.viii.2011, A. Katz & J. Cech, adk11-132, 2 in ethanol (INHS 810,185); Etymology. The specific epithet is derived from the Greek adjective πυρρός, -ά, -όν, Latinized pyrrhus, -a, - um, ‘flame-colored, yellowish-red’; the Greek feminine noun, πϋγή, Latinized pyge, ‘rump, buttocks’; and the Greek adjective-forming suffix -ιος, Latinized -ius, -a, -um, ‘of, pertaining to’. The name references the conspicuous reddish-orange color of Abd. VI. Description. Body shape and color pattern. Length up to 1.6 mm. Body dorso-ventrally -flattened (Figs 20, 21). Background color white with dark purple pigment forming two lateral bands from eye spot through Abd. I; on distal end of Ant I–III, most of Ant. IV deep purple; distal end of coxa, femora, and tibiotarsus dark purple; manubrium, and lateral margins of Abd. II–VI with small purple patches. Head and body speckled with light orange pigment. Abd. VI usually with bright orange pigment. Dens without pigment. Living specimens often look dark because of a dorsal cover of black or dark brown scales. Scales. Scales as uninterrupted ribbed type: broad, rounded, and usually apically acuminate (Figs 5–7). Larger scales with straight parallel edges (Figs 6, 7). Nearly all scales with straight, parallel, uninterrupted ribs from base to tip that do not converge distally. Ribs rarely interrupted near tip in larger scales. Scales present dorsally on Ant. I–II, head, body; present on trochanter and femora of middle and hind legs and ventral face of manubrium; absent from Ant. III–IV, ventral side of head, ventral tube, and fore legs. Head. Apical bulb of Ant. IV simple, sometimes bilobed. Dorsal chaetotaxy of head as in Figure 19: row An with 6 mac; anterior mac A0, A2, A3, A5 present; median mac M1–4 present; sutural mac S2, S4, S5 present, S 5i mac sometimes present, S6 as mic; posterior mac Ps5 present. Prelabral setae smooth. Labral papillae with 2–3 projections (Fig. 29). Outer maxillary lobe with 2 sublobal hairs (Fig. 28). Labial triangle as MEL 1L2A1–5, r always absent (Fig. 30). Lateral process of labial palp thick, blunt, not reaching tip of labial papilla E (Fig. 31). Cephalic groove with 4+4 ciliate setae. Thorax. Dorsal chaetotaxy of Th. II with 3 mac: a5, p3, p5 (Fig. 22). Th. III with 5 mac: p3, p6, m5, m6, a6 (Fig. 23). Trochanteral organ with triangular setal pattern with up to 26 smooth spiny setae (Fig. 35). Hind claw complex as in Figure 32. Abdomen. Abd. I with 1 mac (Fig. 24). Abd. II with 3 mac: m3, m3e, m5 (Fig. 25). Abd. III with 5 mac: a2, m3, p6, pm6, am6 (Fig. 26). Abd. IV with 4 mac internal to bothriotricha and at least 7 lateral mac (Fig. 27). Ventral tube with 15–20 ciliate setae on each side of anterior face; 5+5 small smooth and 1+1 larger smooth setae on posterior face; lateral flaps with 7+7 smooth setae. Tenaculum as in Figure 33. Mucro as in Figure 34. DNA Barcode. GenBank KM610131 Ecology. This species occurs under tree bark, in leaf litter, and on grasses, shrubs, epiphytes and other vegetation. Distribution. Willowsia pyrrhopygia sp. nov. is known only from Florida, USA. It is very common and abundant throughout the state. Remarks. Willowsia pyrrhopygia sp. nov. is the only member of the genus with the following combination of characters: color pattern as in Figs 20 and 21; uninterrupted rib scale type (Figs 5–7); scales present on antennae, manubrium, and legs; labral papillae with multiple projections (Fig. 29); prelabral setae smooth; labial triangle seta r absent (Fig. 30); outer maxillary lobe with 2+2 sublobal hairs (Fig. 28); dorsal head with 4+4 median mac, 4+4 sutural mac, mac S0 absent, and mac ps5 present (Fig. 19); Th. II with 0+0 median mac and 2+2 posterior mac (Fig. 22); Abd. I with 1+1 mac (Fig. 24); Abd. II with 2+2 inner mac (Fig. 25); Abd. III with 2+2 inner mac and 3+3 lateral mac (Fig. 26); and Abd. IV with 4+4 inner mac (Fig. 27). It is most similar to W. mexicana in morphology and native distribution: both appear to be the only Willowsia species endemic to the New World, lacking labial triangle seta r, with 2 sublobal hairs, and share similarly reduced dorsal chaetotaxy. However, they can be separated by color pattern and dorsal chaetotaxay: W. pyrrhopygia sp. nov. has only small patches of dark blue pigment along the lateral margins of Abd. IV–VI, and Abd. VI has conspicuous orange pigment (Figs 20–21), whereas, in W. mexicana, Abd. IV–VI are mostly covered with dark blue pigment (See figure 8 in Zhang et al., 2007); W. pyrrhopygia sp. nov. always has 4+4 median mac on head, whereas W. mexicana usually has 3+3 (M1 usually absent); W. pyrrhopygia sp. nov. has 4+4 (sometimes 3+3) sutural mac on head, lacking mac S3 and sometimes lacking S 5i, whereas W. mexicana has 5+5, with S3 and S 5i always present; W. pyrrhopygia sp. nov. has 2+2 posterior mac on Th. II (p3, p5), whereas W. mexicana has 3+3 (p3–p5). Two species from New Caledonia, W. neocaledonia and W. nigra, are also similar to W. pyrrhopygia sp. nov. and W. mexicana, and together, these four species comprise the uninterrupted rip scale type group (sensu Zhang et al., 2011): they all have reduced dorsal chaetotaxy; smooth prelabral setae; and labral papillae with multiple projections. However, W. pyrrhopygia sp. nov. lacks labial triangle seta r, has scales on the legs, and has only 2+2 hairs on the sublobal plate of the outer maxillary lobe, whereas in W. neocaledonia and W. nigra labial triangle seta r is present, scales are absent on the legs, and there are 3+3 hairs on the sublobal plate of the outer maxillary lobe. See Table 1 for additional diagnostic characters. The genus Americabrya Mari Mutt & Palacios-Vargas, 1987, also endemic to the New World, has scales with similar (yet fewer) uninterrupted ribs and shares similar chaetotaxy with native New World Willowsia. Morphological comparisons among native New World Willowsia and Americabrya may provide additional insight into the complex evolutionary history of scaled Entomobryinae. It is apparent that W. pyrrhopygia sp. nov. and W. mexicana share many morphological similarities with Americabrya arida (See Table 1) that include character states that are unique, or at least undocumented, for Entomobryinae (i.e., 2 hairs on the sublobal plate of the outer maxilla and the absence of labial seta r) suggesting that W. pyrrhopygia sp. nov. and W. mexicana may be more closely related to Americabrya than to their Asian congeners. This hypothesis is supported by recent molecular phylogenetic studies (Zhang et al. 2014b; 2015; 2016; Katz et al. 2015a; Zhang & Deharveng 2015) that dispute Willowsia ’s monophyly, proposing that some species of Willowsia may have descended from independent lineages of Entomobrya. In this case, W. pyrrhopygia sp. nov., W. mexicana and Americabrya spp., all endemic to North America, may share a New World Entomobrya ancestor. Furthermore, Zhang et al. (2011) suggests that differences in scale morphology (i.e., rib sculpturing and shape) may provide valuable insight regarding the evolution and systematics of Willowsia. For example, all Willowsia species with uninterrupted rib type scales may share common ancestry with Americabrya which have smaller and thinner, seta-like scales with only 2 uninterrupted ribs (Fig. 14). However, a robust, species-level molecular phylogeny is needed to evaluate these hypotheses in the future. Table 1. Diagnostic characters to separate species of Willowsia that occur in the New World and additional species with close affinities with W. pyrrhopygia sp. nov. Bold character states indicate those shared with W. pyrrhopygia sp. nov. Underlined character states indicate those unique to native New World Willowsia and Americabrya. Willowsia Willowsia Willowsia Willowsia Willowsia Willowsia Willowsia Americabrya Characters pyrrhopygia mexicana neocaledonia nigra jacobsoni nigromaculata buski arida sp. nov. Scale rib sculpturing uninterrupted uninterrupted uninterrupted uninterrupted interrupted interrupted interrupted uninterruptedPublished as part of Katz, Aron D., 2017, A new endemic species of Willowsia from Florida (USA) and descriptive notes on all New World Willowsia (Collembola: Entomobryidae), pp. 549-562 in Zootaxa 4350 (3) on pages 554-560, DOI: 10.11646/zootaxa.4350.3.7, http://zenodo.org/record/105937
Jonathan D. Katz - Director, PhD program, Visual Studies, University at Buffalo
No full textJonathan Katz discusses the emergence of the slogan t-shirt during the rise of the LGBTQ rights movement.The Museum at FIT is pleased to present this video in conjunction with our exhibition "A Queer History of Fashion: From the Closet to the Catwalk" which is on view from September 13, 2013 to January 4, 2014
Quality control in the diagnosis of Trichuris trichiura and Ascaris lumbricoides using the Kato-Katz technique : experience from three randomised controlled trials
No full textBackgroundAn accurate diagnosis of soil-transmitted helminthiasis is important for individual patient management, for drug efficacy evaluation and for monitoring control programmes. The Kato-Katz technique is the most widely used method detecting soil-transmitted helminth eggs in faecal samples. However, detailed analyses of quality control, including false-positive and faecal egg count (FEC) estimates, have received little attention.MethodsOver a 3-year period, within the frame of a series of randomised controlled trials conducted in Pemba, United Republic of Tanzania, 10% of randomly selected Kato-Katz thick smears were re-read for Trichuris trichiura and Ascaris lumbricoides eggs. In case of discordant result (i.e. positive versus negative) the slides were re-examined a third time. A result was assumed to be false-positive or false-negative if the result from the initial reading did not agree with the quality control as well as the third reading. We also evaluated the general agreement in FECs between the first and second reading, according to internal and World Health Organization (WHO) guidelines.ResultsFrom the 1,445 Kato-Katz thick smears subjected to quality control, 1,181 (81.7%) were positive for T. trichiura and 290 (20.1%) were positive for A. lumbricoides. During quality control, very low rates of false-positive results were observed; 0.35% (n¿=¿5) for T. trichiura and 0.28% (n¿=¿4) for A. lumbricoides. False-negative readings of Kato-Katz thick smears were obtained in 28 (1.94%) and 6 (0.42%) instances for T. trichiura and A. lumbricoides, respectively. A high frequency of discordant results in FECs was observed (i.e. 10.0-23.9% for T. trichiura, and 9.0-11.4% for A. lumbricoides).ConclusionsOur analyses show that the rate of false-positive diagnoses of soil-transmitted helminths is low. As the probability of false-positive results increases after examination of multiple stool samples from a single individual, the potential influence of false-positive results on epidemiological studies and anthelminthic drug efficacy studies should be determined. Existing WHO guidelines for quality control might be overambitious and might have to be revised, specifically with regard to handling disagreements in FECs
Willowsia neonigromaculata Cipola & Katz 2021, sp. nov.
No full textWillowsia neonigromaculata sp. nov. Katz & Cipola urn:lsid:zoobank.org:act: 195E3CC7-B9AB-4CE9-93DE-BBA8ABA443C9 Figs 8–11; Tables 2–3 Willowsia nigromaculata – Katz 2015a: 829, Illinois, USA (phylogeny). — Katz 2015b: 64, Illinois, USA (phylogeny). — Katz 2017: 553, Illinois, USA (descr.). — deWaard et al. 2019: suppl. data, Brockville, Canada (DNA barcode, GenBank MG034057). Diagnosis Body with pigments laterally on head to Abd III, and spots on Abd IV, femur and tibiotarsus (Fig. 8), sometimes with piment covering nearly all Abd II–III medially and posterior half of Abd IV; head mac S0 present or absent, Ps3 mes and Ps5 mac absent (Fig. 9A); sublobal plate with 3 inner appendages (Fig. 9B); Th II–Abd IV formula with 9,8|3,3,3+7,7+14 mac, p2a present on Th III; manubrium dorsally with 9 lateral chaetae abruptly acuminate at the tip, manubrial plate with 4 chaetae, 2 mac (Fig. 9E). Etymology The specific epithet is derived from the Greek adjective ‘νέος, -α, -ον’, Latinized ‘ neos, - a, - um ’ (combining form neo -), ‘new, recent, young’ + the epithet of the species Willowsia nigromaculata (Lubbock, 1873). The name references the new species’ morphological affinity with W. nigromaculata and its presence in the New World. Material examined Holotype USA • 1 ♀ on slide; Illinois, Pope Co., Dixon Springs Agricultural Center; 37°26′03.65″ N, 88°40′01.84″ W; altitude 524 m, hand collected on pavement on dying Arilus cristatus; 23 Sep. 2011; A. Katz leg.; adk11-159; INHS 810161. Paratypes USA • 1 ♂, 2 ♀, 2 undetermined sex on slides and 30 specimens in alcohol; same data as for holotype; INHS 810157–810160, INHS 810162, INHS 810163. Other material USA • 1 undetermined sex on slide; Illinois, Urbana, 19 Montclair Rd; 40°05′41.5″ N, 88°12′24.7″ W; 6 Jul. 2008; by kitchen sink; F Soto-Adames leg.; INHS 810,164 • 2 ♀♀ on slide; same collection data as for preceding, except 2012 (no specific date); INHS 810165. Description LENGTH. Total length (head + trunk) of specimens 1.51–1.85 mm (n = 3). Specimens pale yellowish white with violet pigments on distal half of the Ant I to Ant IV, head laterally, margins of Th II–Abd II, Abd III with one transverse band that expands laterally, Abd IV dorsally with one irregular lateral spot and one weak central spot, irregular spots on dorsoventral plate and posterior margin; distal half of Abd V to VI, distal femur and tibiotarsus medially; eyepatches black (Fig. 8). Sometimes depigmented on proximal part of the Ant II; pigments on posterior one third of the Th II and Abd I, almost all Abd II–III medially, and posterior half of Abd IV (see Katz 2017: 551). HEAD. Antennal ratio as I: II: III: IV = 1: 1.83–2.00: 1.68–2.12: 1.81–2.36 (n = 3). Ant IV not annulated, with apical bulb simple or bilobed, rarely retracted. Six interocular chaetae (q, v, s, p, r, t); head dorsal macrochaetotaxy (Fig. 9A) with 5 ‘An’ (An1a–3), 4 ‘A’ (A0, A2–3, A5), 3 ‘M’ (M1–2, M4), 6–7 ‘S’ (S0, S2–6), 0 ‘Ps’, 5 ‘Pa’ (Pa1–5), 2 ‘Pm’ (Pm1, Pm3), 4 ‘Pp’ (Pp1–3, Pp5), and 4 ‘Pe’ (Pe2–3 plus 1 unnamed) mac; An2a?, A1, A4? mic absent. Maxillary palp with t.a. smooth and b.c. weakly striated, thicker and 1.10 longer than t.a.; sublobal plate with 3 inner (sb.1–3) and 1 outer (sb.4) smooth appendages, sb.1 gently smaller, sb.3 thin, and sb.4 minute (Fig. 9B). Ventral chaetotaxy with about 74 ciliate chaetae, 23 thin, 18 slightly smaller, and 33 normal and subequal in length (including b.c.), cephalic groove with 8 chaetae; postlabial formula with 4 (G1–4), 4 (X, X2–4), 4 (H2–4), 4 (J1–4), 2 (X’, X4’) chaetae (Fig. 9C). THORAX CHAETOTAXY (as Fig. 6A). Th II and III similar to W. nigromaculata, except Th III p2a mac always present. Ratio Th II: III = 1.48–1.30: 1 (n = 3), holotype 1.30: 1. ABDOMEN CHAETOTAXY (as Figs 6B–F and 9D). Abd I to IV similar to W. nigromaculata, except Abd I m2 smaller in length and socket size, Abd II a5 and m2 bothriotricha with 8–9 and 6 accessory chaetae, Abd III m2 bothriotrichum with 3–4 accessory chaetae and a5 and m5 bothriotricha with 12–15 accessory chaetae between them, and Abd IV T2 and T4 bothriotricha with 2 mic and 8–11 accessory chaetae between them. Abd V a, m and p series with 1 (a5), 4 (m2–3, m5–5e), and 5 (p1, p3–6) mac, respectively (Fig. 9D). Ratio Abd III: IV = 1: 3.61–4.14 (n= 3), holotype 1: 3.80. CHAETOTAXY OF THE LEGS AND COLLOPHORE. Similar to W. nigromaculata (Fig. 7A–F). FURCULA. Manubrium ventrally similar to W. nigromaculata (as Figs 4C, 7I); dorsally with one lateral row of 9 ciliate chaetae abruptly acuminate at the tip, 3 mac and 6 mes (2 basal and 2 antero-subapical); manubrial plate with 4 ciliate chaetae of different sizes (2 mac abruptly acuminate at the tip) and 2 psp (Fig. 9E). DNA Barcodes GenBank KM610130; collection locality information same as holotype (Katz et al. 2015a). GenBank MG034057; Brockville, Canada (deWaard et al. 2019). Remarks Willowsia neonigromaculata sp. nov. is considered a new species that is distinct from W. nigromaculata, supported by both morphological (Table 2) and molecular evidence (Table 3, Figs 10–11). Willowsia neonigromaculata sp. nov. resembles W. nigromaculata in most morphological characteristics, but differs in head by cephalic mac Ps5 and Pp4 absent and Pe4 plus one extra mac present (opposite in W. nigromaculata), 3 mic (An2a?, A1, A4?) absent (present in W. nigromaculata) and interocular s chaetae present (absent in W. nigromaculata), sublobal plate with 3 inner appendages (2 in W. nigromaculata), and ventral groove with 8 chaetae (6 in W. nigromaculata). On Abd I, m2 mac for Willowsia neonigromaculata sp. nov. smaller in length and socket size than m3 and m4 (normal in W. nigromaculata), and Abd V with 3 chaetae (m5ea, p5a, p6e), all absent in W. nigromaculata. They also differ in manubrium dorsally with 2 basal and 2 antero-subapical chaetae abruptly acuminate at the tip (1 basal and 1 antero-subapical in W. nigromaculata), and manubrial plate with 2 inner mac (1 in W. nigromaculata).Published as part of Cipola, Nikolas G. & Katz, Aron D., 2021, Morphological and molecular analysis of Willowsia nigromaculata (Collembola, Entomobryidae, Entomobryinae) reveals a new cryptic species from the United States, pp. 92-116 in European Journal of Taxonomy 739 (1) on pages 104-108, DOI: 10.5852/ejt.2021.739.1269, http://zenodo.org/record/461153
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