• Korean journal of applied entomology
• /
• v.14 no.4 s.25
• /
• pp.221-225
• /
• 1975

The European corn borer, Ostrinia nubilalis (Hubner) has been known as only one species of genus Ostrinia in Korea. After Mutuura and Munroe(1970) revised the genus Ostrinia, the name of the corn stem borer in Korea has been very confused. The critical examination of the external morphology and the genitalia revealed that species of the genus Ostrinia occurring in Korea are O. fyrbacakus (Guenee, O. scapulalis (Walker), O. zaguliaevi Mut. & Mun. and O. zealis (Guenee)

• Korean journal of applied entomology
• /
• v.28 no.3
• /
• pp.154-166
• /
• 1989

A new genus, Neochronistis which is closely related to Parachronistis Meyrick and a new species of the latter including two previousely known species are described with illustrations of external characters and male or female genitalia. Also a species of the latter, Parachronistis maritima Omelko is reported for the first time from Korea. Newly described species are Parachronistis geniculella sp. nov. and Neochronistis hodgesi sp. nov.

• Journal of Veterinary Science
• /
• v.19 no.6
• /
• pp.858-861
• /
• 2018

The freemartinism syndrome affects almost all female calves born as co-twins to male calves, whereas little is known about this phenomenon in female sheep. Within this context, 1,185 ewe-lambs from the Ripollesa sheep breed were genotyped for the presence of oY1 polymorphism (a non-autosomal region of the Y chromosome). Neither ewe-lambs from single births (856) nor ewe-lambs from all-female multiple births (170) were revealed as freemartins, whereas five of 159 ewe-lambs from multiple births with male co-twins were freemartins ($3.15{\pm}1.38%$). All freemartin ewe-lambs were confirmed by physical examination of external genitalia. The results confirm a low incidence of freemartinism from heterosexual twin pregnancies in Ripollesa sheep.

• Korean journal of applied entomology
• /
• v.58 no.1
• /
• pp.1-8
• /
• 2019

The genus Nipponopsyche Yazaki is reported from Korea with the species, N. fuscescens Yazaki for the first time. Adult including genitalia, larva, and pupa of the species are redescribed, and DNA barcode for precise identification of the species is also provided.

• Animal Systematics, Evolution and Diversity
• /
• v.38 no.4
• /
• pp.222-225
• /
• 2022

A rare genus Leptodromiella Tuomikoski, 1936, which belongs to the subfamily Ocydromiinae in the family Hybotidae contains only one recorded speices, L. crassiseta (Tuomikoski, 1932). Until now, there is still no known ecological information about this genus, and its distribution was restricted to only in central and northern Europe, such as Finland, Sweden and Russia. In Korea, only one species, Bicellaria koreana Barták, Plant & Kubík, 2013, was recorded in the family Hybotidae from Mt. Baekdusan so far. Herein, the second genus Leptodromiella is newly recorded along with the nominate species, L. crassiseta (Tuomikoski, 1932) in Korean fauna. Re-description and illustrations of external features and male genitalia of the newly recorded species are provided in this paper.

• Korean Journal of Environmental Biology
• /
• v.40 no.4
• /
• pp.631-640
• /
• 2022

Labidocera pavo Giesbrecht, 1889 and L. sinilobata Shen and Lee, 1963, belonging to the detruncata group in the genus Labidocera were collected from the southwestern coastal waters of Korea, using a Norpac net (0.2 mm mesh size). Labidocera sinilobata, known to be endemic species in estuary of Chinese rivers, is the first record in Korean waters. In Chinese waters, this species has only been briefly documented and illustrated. In the study, their morphological characteristics were fully redescribed with careful examination of the fine epidermal structure using a SEM (Scanning Electron Microscope) in addition to their illustrations and compared with species of the detruncata species-group.

• Korean journal of applied entomology
• /
• v.62 no.1
• /
• pp.15-19
• /
• 2023

Two species of Argyresthia, A. subrimosa Meyrick and A. umbrina Liu, Wang et Li are reported for the first time from Korea. The collecting data show that A. subrimosa occurs in two remote islands, Ulleungdo and Jejudo in the country. These two local populations are compared with each other in external and genital morphology. Argyresthia umbrina is first recorded outside the type country, China. Photographs of the habitus and genitalia are provided for the two species treated here.

• Journal of Species Research
• /
• v.12 no.4
• /
• pp.368-373
• /
• 2023

The genus Acymatopus Takagi is reported for the first time from Korean fauna along with two nominate species, A. minor Takagi, 1965 and A. takeishii Masunaga, Saigusa & Yang, 2005. This genus belonging to the subfamily Hydrophorinae in the family Dolichopodidae. It comprised of only six species in the world and distributed only in Japan and China thus far. The genus is diagnosed by a metallic bluish-green body with thick gray tomentum, lacking black and white markings of mesonotum, 2 pairs of long marginal setae at scutellum and male's dorsally slightly curved fore tarsomere 1. Both adults and larvae of this genus are known to be found on rugged and rocky marine shores of the tidal zone. The authors found the first recorded species in the west seaside of Korea, where many barnacles inhabit. The descriptions and illustrations of external features including male genitalia of newly recorded species are provided in this paper.

• Clinical and Experimental Reproductive Medicine
• /
• v.19 no.1
• /
• pp.95-101
• /
• 1992

During the years 1983 to 1991, cytogenetic analysis was performed on 19 women with Turner syndrome in order to find out the incidence of symptoms and signs according to the classification of chromosome abnormalities. 1. All of them showed short stature and the mean height in 7 adults was $140.71{\pm}5.26cm$. 2. Among the 19 patients with Turner syndrome, 7 (36.8%) had 45, XO karyotype, 7 (36.8%) had 46, Xi (Xq), and remained 5 (26.3%) had mosaicism. 3. Five patients with mosaicism had 45, X/46, XX (2), 45, X/46, Xi (Xq) (2) and 45, X/47, XXX (1), respectively. 4. Patients with 45, XO and 46, Xi (Xq) had amenorrhea, whereas only 33% (1/3) of patients with mosaicism had amenorrhea. Total incidence of amenorrhea was 84.6% (11/13). 5. Abnormal external genitalia was detected in 63.6% of patients. The incidence of abnormality in patients with mosaicism was lower than that of other groups. 6. OMPC and deafness were detected in 3 of 19 patients. 7. Two cases of cardiovascular abnormalities were found in patients with 45, XO. This study suggests that gnenetic counselling according to the classification of chromosomal abnormalities could be needed in patients with Turner syndrome.

• Journal of Embryo Transfer
• /
• v.30 no.4
• /
• pp.335-340
• /
• 2015

The objective of this study was to evaluate the initial detection time and development of the fetal genital structures using ultrasound in twelve pregnant small bitches. The initial detection time of the fetal genital structures was as follows: genital tubercle at days 32.6; os penis at days 45.2; labia at days 45.7; scrotum at days 47.5. Ultrasonograms of fetal genital structure according to gestational stage were as follows: Undifferentiated stage (before day 35), the genital tubercle was observed to have a small elevation and just a hyper-echogenic structure in the midline between the umbilical cord and the tail in male and female fetus. Migration stage (between day 35~45), the genital tubercle was observed as a hyper-echogenic, bilobular, oval shaped and the genital tubercle began to migrate from the initial position toward the umbilical cord in males, and toward the tail in females. Differentiated stage (after day 46), the penis and os penis were observed to stand out in the abdominal wall and the scrotum was observed toward the perineal region in male fetuses. The labia was detected at the base of the tail in female fetuses. These results indicate that ultrasound of fetal genital structures could be useful for fetal gender determination and a completely prepartum evaluation of the canine fetus.