Barton, Harvey E.

Harp, Phoebe A.

English

UARK (University of Arkansas )

Journal of the Arkansas Academy of Science Volume 42 Article 34 1988 Notes on the Biology of Thyanta claceala (Hemiptera: Pentatomidae) on Tephrosia virginiana (Leguminosae), a New Host Plant Phoebe A. Harp Arkansas State University Harvey E. Barton Arkansas State University Follow this and additional works at: https://scholarworks.uark.edu/jaas  Part of the Botany Commons Recommended Citation Harp, Phoebe A. and Barton, Harvey E. (1988) "Notes on the Biology of Thyanta claceala (Hemiptera: Pentatomidae) on Tephrosia virginiana (Leguminosae), a New Host Plant," Journal of the Arkansas Academy of Science: Vol. 42 , Article 34. Available at: https://scholarworks.uark.edu/jaas/vol42/iss1/34 This article is available for use under the Creative Commons license: Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0). Users are able to read, download, copy, print, distribute, search, link to the full texts of these articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author. This General Note is brought to you for free and open access by ScholarWorks@UARK. It has been accepted for inclusion in Journal of the Arkansas Academy of Science by an authorized editor of ScholarWorks@UARK. For more information, please contact scholar@uark.edu. 110Proceedings Arkansas Academy off Science, Vol. 42, 1988Arkansas Academy off Scienceitis understood that the arguments of derivatives of the C;'s are (t,to,p,q) and the arguments for the derivatives of the X(Uj)'s are (t,C(t,t o,p,q),q)The variational equations for the system on the manifold are(VM1) 3 ,3C v_m 3X(u.) 3C." I I r ¦ -4mat Iat ' . . au. at i(to,to.P.q) = X(Ui)(to,p,q);o j=»l j o o(VM2) 3 ,3C< \ . » 3XK> 3C, 9Cik j-1 j k k(VM3) a ,9Ci\ ,m 3°, 9X<V 9Ci31ITv"/ .£. 3u, 3v. + 3v. ' "377 (t°'t°'P>q) " 0 "k J=l J k k kJ. B. BENNETT, Department of Computer Science, Mathematics and Physics, Arkansas State University, State University, AR 72467.NOTES ON THE BIOLOGY OF THYANTA CALCEATA (HEMIPTERA: PENTATOMIDAE)ON TEPHROSIA VIRGINIANA(LEGUMINOSAE), A NEW HOST PLANTThyanta calceata (Say) is distributed over the eastern United States from New England to Florida and west to Michigan, Illinois and Missouri(McPherson, The Pentatomoidea [Hemiptera] ofnortheastern North America withemphasis on the fauna of Illinois. S. 111. Univ. Pr., Carbondale,1982). The nymphal instars of this pentatomid have been previously described (Paskewitz and McPherson, Great Lakes Entomol. 15(4):231-255,1982). Tephrosia virginiana (L.) ranges from Massachusetts south to Georgia, and west to Minnesota, Texas and Oklahoma (Steyermark, Floraof Missouri, Iowa St. Univ.Pr., Ames, 1975). This study presents additional information on the biology of this insect as itrelates to T. virginiana,a previously unreported host plant.McPherson (1982) reported T. calceata having been collected from soybean, red clover, blue-grass, cheat, wheat, timothy, winter cress, milkweed,horse-weed, buckbrush, Lespedeza, bean, pea, tomato, allegheny blackberry, common bromegrass, mullein, wildraspberry, goldenrod, and even-ing primrose. We have observed T. calceata commonly associated with T. virginiana in northeastern Arkansas on Crowley's Ridge and innorthernArkansas and southern Missouri on the Ozark Plateau.Table 1. Occurrence of Thyanta calceata on Tephrosia virginiana, 28 April - 7 August 1987.PREBLOOM FLOWERING POSTBLOOMApril May June July August28 1 8 15 22 28 19 26 3 10 16 24 31 7Adult (N-23) 13 6 32114 21st Instar (N=0)2nd Instar (N-7) 11 11 123rd Instar 2 14th Instar (N-7) 1 2 1 2 15th Instar (N-l) 1110Journal of the Arkansas Academy of Science, Vol. 42 [1988], Art. 34Published by Arkansas Academy of Science, 1988Proceedings Arkansas Academy of Science, Vol. 42, 1988111General NotesFrom 8 April to 7 August 1987, the study area was visited a total of 14 times for one hour each trip between 1040 - 1645 hrs. Collectionswere made by sweeping the plants with a sweep net. Specimens were transferred to a chloroform killjar, then pinned, pointed, or preserved in!O°7o EtOH. Voucher specimens are located in the Arkansas State University Insect Collection, State University, AR 72467.During this study, T. calceata was collected from and observed on a population of T. virginiana from 8 May - 7 August 1987 on Crowley'sRidge, in northeastern Arkansas. Adult and second through fifthnymphal instars were collected from this host plant throughout the study (Table1). The absence of first nymphal instars in our collections was probably due to their small size and short stadial length.No specimens of T. calceata were collected from this host plant during the prebloom stage (Table 1). Adults and second through fifthnym-phal instars were collected throughout the flowering and postbloom stages of the host plant.We thank Dr. E. Leon Richards, Arkansas State University for help in identification of T. virginiana.PHOEBE A. HARP and HARVEYE. BARTON, Department ofBiological Sciences, Arkansas State University, State University, AR 72467.REPRODUCTIVE CHARACTERISTICS OF SOUTH FLORIDA STERNOTHERUS ODORATUS ANDKINOSTERNON BAURII(TESTUDINES: KINOSTERNIDAE)The reproductive characteristics ofsouth Florida kinosternids are poorly known; however, populations of the stinkpot, Sternotherus odoratus,in central (Gross, 1982) and north Florida (Iverson, 1977), and the striped mud turtle, Kinosternon baurii, in central (Einam, 1956; Lardie, 1975)and innorth Florida (Iverson, 1977, 1979) have been studied. A comparative study ofnorthern and southern United States populations of S. odoratusby Tinkle (1961) concluded that clutch size increases with increasing body size of the female. In addition, southern populations should producemultiple clutches and exhibit both early maturity and sexual dimorphism in size. These findings were later supported by Gibbons (1970) incentralFlorida. The objectives of this study are to provide information on the reproductive characteristics of S. odoratus and Kinosternon baurii fromsouth Florida and to test Tinkle's (1961) summary ofsouthern populations ofS. odoratus froma region further south than his north Florida sample.Fifty-four turtles were collected along 1 km of Snapper Creek canal between SW 87 Ave and US Hwy 1, and along 0.3 km of C-100A canalnear 104th Str. and SW 82 Ave in Miami, Dade County, Florida, from June through August 1982. Specimens were captured by dipnet or wiremesh funnel traps (1.8 x 0.8 m and 0.8 x 0.5 m) baited with bread, fish and beef scraps. Carapace length (CL) and plastron length (PL) weremeasured to the nearest 0.1 mm. Females were considered mature ifthey possessed ovarian follicles exceeding 7 mm diameter or ifoviductal eggsor corpora lutea were present (Iverson, 1979). Clutch size was estimated by counts of oviductal eggs, corpora lutea, or enlarged follicles over 11mm for S. odoratus (Iverson, 1977) and 10 mm for K. baurii (Iverson, 1979). The presence of sperm in testes was used to determine maturityinmales. Allturtles were deposited in the National Museum of Natural History, Washington, DC. Means are followed by ± one standard devia-tion. All measurements are in mm.Sternotherus odoratus—Average carapace lengths for eighteen sexually mature females (77 ± 5.69; range = 52-80) and ten sexually maturemales (68 ± 8.79; range = 62-86) support Tinkle's (1961) findings ofsexual dimorphism in southern populations. This, however, was not observedby Tinkle (1961) innorthern specimens. The small size at maturity inboth males and females from south Florida is similar to those findings reportedTinkle (1961) and Gibbons (1970) of 54, 61 and 52, 65, respectively. These data reveal an almost continuous north to south decrease in minimumsize at maturity in Florida stinkpots. Mean clutch size was not significantly different (p>0.05) whether by counts of enlarged follicles (2.22 ±0.441 N = 9), oviductal eggs (2.38 ± 0.51; N = 8), or corpora lutea (2.34 ± 0.76; N = 18). Based on oviductal eggs, clutch size was significantlylarger (t = 2.13; p < 0.05) than the mean (1.74) reported by Gross (1982) in central Florida and significantly smaller (t = 2.87; p < 0.05) thanthe mean (3.2) in north Florida (Iverson, 1977). Clutch size, based on either corpora lutea (r = 0.198) or oviductal eggs (r = 0.178 showed nosignificant positive correlation with female plastron size at 0.05 level. Multiple sets ofcorpora lutea (largest first) followed by oviductal eggs foundinnine female 5. odoratus were 2,2 and 2 eggs (71 mmPL), 2,2,2 and 2 eggs (76 mmPL), 2,2,2 and 2 eggs (75 mmPL), 2,2 and 2 eggs (80 mmPL),3,1 and 0 eggs (76 mmPL), 3,2 and 0 eggs (71 mmPL), 3,2 and 0 eggs (80 mmPL), 2,3 and 2 eggs (81 mmPL), and 2,3 and 2 eggs (85 mmPL).Pre-ovulatory follicles greater than 10 mm were found in all but the last three turtles. Three clutches are clearly produced by some turtles, however,production of four clutches by one female indicates that at least nine eggs are produced annually by south Florida stinkpots. Mean egg size for19 oviductal eggs from eight females examined was 22.59 ± 2.10 (longest diameter; range = 20.0-29.0) by 13.63 ± 0.8 (shortest diameter; range= 12.2-15.0) and was not significantly correlated with female plastron size (r = 0.142; p > 0.05). Itis unclear whether the absence of any signifi-cant positive correlation between clutch size and female plastron size ofsouth Florida sinkpots reflects an artifact of a small sample, a geographictrend, or even local habitat differences. Although this sample was collected froma region further south than Tinkle's (1961), the presence of sexualdimorphism, early maturity, and multiple clutches from south Florida specimens corroborates Tinkle's (1961) summary of southern populations.Kinosternon baurii—Average carapace lengths offourteen sexually mature females (105 ± 10.0; range = 85-125) and twelve sexually maturemales (91 ± 4.97; range = 90-98) indicates sexual dimorphism insize. Difference in mean clutch size for this sample was not significant whetherestimated by counts of enlarged follicles (2.91 ± 1.75; N= 12), oviductal eggs (3.14 ± 1.67; N = 7), or corpora lutea (2.70 ± 1.43; N = 13).No significant difference in clutch size was found when compared to the 2.6 average in north Florida (Iverson, 1979). Multiple sets of corporalutea (largest first) and oviductal eggs found in three turtles were 5,3 and 5 eggs (102 mmPL), 3,5 and 3 eggs (104 mmPL), and 3,2 and 3 eggs(95 mmPL). Pre-ovulatory follicles greater than 10 mm were found in all three specimens. Egg retention is suspected in one turtle (109 mmPL)that contained two corpora lutea (5.7 and 5.3 mm) and one oviductal egg. Clutch size, based either on corpora lutea (r = 0.253; p > 0.05) oroviductal eggs (r = -0.321; p > 0.05) was not significantly correlated withplastron size. These data suggest that at least nine eggs are producedfrom at least three clutches. Mean egg size for 22 oviductal eggs from seven females examined was 27.57 ± 1.63 (longest diameter; range = 25.0-31 .0)by 15.30 ± 1.40 (shortest diameter; range = 11.7-17.3) and egg length was significantly correlated with female plastron size (r = 0.816; p <0.05). No such correlation was found in north Florida (Iverson, 1979) using a larger sample.The influence of tropical conditions is known to play a role in multiple clutching and aseasonal reproduction in turtles (Molland Legler,1971); however, the scarcity of available information concerning south Florida populations as well as the diversity ofsuitable habitats stresses theneed of further studies before possible trends in the reproductive biology of south Florida kinosternids can be established.Roy McDiarmid and J. Steve Godley supported this research both in supplies and in their encouragement. Iespecially thank G. E. Woolfendenfor the use of his lab and to S. E. Trauth for his help in histological examination and inreviewing this manuscript.111Journal of the Arkansas Academy of Science, Vol. 42 [1988], Art. 34https://scholarworks.uark.edu/jaas/vol42/iss1/34

Notes on the Biology of Thyanta claceala (Hemiptera: Pentatomidae) on Tephrosia virginiana (Leguminosae), a New Host Plant

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Journal of the Arkansas Academy of ScienceVolume 42 Article 341988Notes on the Biology of Thyanta claceala(Hemiptera: Pentatomidae) on Tephrosiavirginiana (Leguminosae), a New Host PlantPhoebe A. HarpArkansas State UniversityHarvey E. BartonArkansas State UniversityFollow this and additional works at: http://scholarworks.uark.edu/jaasPart of the Botany CommonsThis article is available for use under the Creative Commons license: Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0). Users are able toread, download, copy, print, distribute, search, link to the full texts of these articles, or use them for any other lawful purpose, without asking priorpermission from the publisher or the author.This General Note is brought to you for free and open access by ScholarWorks@UARK. It has been accepted for inclusion in Journal of the ArkansasAcademy of Science by an authorized editor of ScholarWorks@UARK. For more information, please contact scholar@uark.edu, ccmiddle@uark.edu.Recommended CitationHarp, Phoebe A. and Barton, Harvey E. (1988) "Notes on the Biology of Thyanta claceala (Hemiptera: Pentatomidae) on Tephrosiavirginiana (Leguminosae), a New Host Plant," Journal of the Arkansas Academy of Science: Vol. 42 , Article 34.Available at: http://scholarworks.uark.edu/jaas/vol42/iss1/34110Proceedings Arkansas Academy off Science, Vol. 42, 1988Arkansas Academy off Scienceitis understood that the arguments of derivatives of the C;'s are (t,to,p,q) and the arguments for the derivatives of the X(Uj)'s are (t,C(t,t o,p,q),q)The variational equations for the system on the manifold are(VM1) 3 ,3C v_m 3X(u.) 3C."I I r ¦ -4mat Iat ' . . au. ati(to,to.P.q) = X(Ui)(to,p,q);o j=»l j o o(VM2) 3 ,3C< \ . » 3XK> 3C, 9Cik j-1 j k k(VM3) a ,9Ci\ ,m 3°, 9X<V 9Ci31ITv"/ .£. 3u, 3v. + 3v. ' "377 (t°'t°'P>q) " 0 "k J=l J k k kJ. B. BENNETT, Department of Computer Science, Mathematics and Physics, Arkansas State University, State University, AR 72467.NOTES ON THE BIOLOGY OF THYANTA CALCEATA (HEMIPTERA: PENTATOMIDAE)ON TEPHROSIA VIRGINIANA(LEGUMINOSAE), A NEW HOST PLANTThyanta calceata (Say) is distributed over the eastern United States from New England to Florida and west to Michigan, Illinois and Missouri(McPherson, The Pentatomoidea [Hemiptera] ofnortheastern North America withemphasis on the fauna of Illinois. S. 111. Univ. Pr., Carbondale,1982). The nymphal instars of this pentatomid have been previously described (Paskewitz and McPherson, Great Lakes Entomol. 15(4):231-255,1982). Tephrosia virginiana (L.) ranges from Massachusetts south to Georgia, and west to Minnesota, Texas and Oklahoma (Steyermark, Floraof Missouri, Iowa St. Univ.Pr., Ames, 1975). This study presents additional information on the biology of this insect as itrelates to T. virginiana,a previously unreported host plant.McPherson (1982) reported T. calceata having been collected from soybean, red clover, blue-grass, cheat, wheat, timothy, winter cress, milkweed,horse-weed, buckbrush, Lespedeza, bean, pea, tomato, allegheny blackberry, common bromegrass, mullein, wildraspberry, goldenrod, and even-ing primrose. We have observed T. calceata commonly associated with T. virginiana in northeastern Arkansas on Crowley's Ridge and innorthernArkansas and southern Missouri on the Ozark Plateau.Table 1. Occurrence of Thyanta calceata on Tephrosia virginiana, 28 April - 7 August 1987.PREBLOOM FLOWERING POSTBLOOMApril May June July August28 1 8 15 22 28 19 26 3 10 16 24 31 7Adult (N-23) 13 6 32114 21st Instar (N=0)2nd Instar (N-7) 11 11 123rd Instar 2 14th Instar (N-7) 1 2 1 2 15th Instar (N-l) 1110Journal of the Arkansas Academy of Science, Vol. 42 [1988], Art. 34Published by Arkansas Academy of Science, 1988Proceedings Arkansas Academy of Science, Vol. 42, 1988 111General NotesFrom 8 April to 7 August 1987, the study area was visited a total of 14 times for one hour each trip between 1040 - 1645 hrs. Collectionswere made by sweeping the plants with a sweep net. Specimens were transferred to a chloroform killjar, then pinned, pointed, or preserved in!O°7o EtOH. Voucher specimens are located in the Arkansas State University Insect Collection, State University, AR 72467.During this study, T. calceata was collected from and observed on a population of T. virginiana from 8 May - 7 August 1987 on Crowley'sRidge, in northeastern Arkansas. Adult and second through fifthnymphal instars were collected from this host plant throughout the study (Table1). The absence of first nymphal instars in our collections was probably due to their small size and short stadial length.No specimens of T. calceata were collected from this host plant during the prebloom stage (Table 1). Adults and second through fifthnym-phal instars were collected throughout the flowering and postbloom stages of the host plant.We thank Dr. E. Leon Richards, Arkansas State University for help in identification of T. virginiana.PHOEBE A. HARP and HARVEYE. BARTON, Department ofBiological Sciences, Arkansas State University, State University, AR 72467.REPRODUCTIVE CHARACTERISTICS OF SOUTH FLORIDA STERNOTHERUS ODORATUS ANDKINOSTERNON BAURII(TESTUDINES: KINOSTERNIDAE)The reproductive characteristics ofsouth Florida kinosternids are poorly known; however, populations of the stinkpot, Sternotherus odoratus,in central (Gross, 1982) and north Florida (Iverson, 1977), and the striped mud turtle, Kinosternon baurii, in central (Einam, 1956; Lardie, 1975)and innorth Florida (Iverson, 1977, 1979) have been studied. A comparative study ofnorthern and southern United States populations of S. odoratusby Tinkle (1961) concluded that clutch size increases with increasing body size of the female. In addition, southern populations should producemultiple clutches and exhibit both early maturity and sexual dimorphism in size. These findings were later supported by Gibbons (1970) incentralFlorida. The objectives of this study are to provide information on the reproductive characteristics of S. odoratus and Kinosternon baurii fromsouth Florida and to test Tinkle's (1961) summary ofsouthern populations ofS. odoratus froma region further south than his north Florida sample.Fifty-four turtles were collected along 1 km of Snapper Creek canal between SW 87 Ave and US Hwy 1, and along 0.3 km of C-100A canalnear 104th Str. and SW 82 Ave in Miami, Dade County, Florida, from June through August 1982. Specimens were captured by dipnet or wiremesh funnel traps (1.8 x 0.8 m and 0.8 x 0.5 m) baited with bread, fish and beef scraps. Carapace length (CL) and plastron length (PL) weremeasured to the nearest 0.1 mm. Females were considered mature ifthey possessed ovarian follicles exceeding 7 mm diameter or ifoviductal eggsor corpora lutea were present (Iverson, 1979). Clutch size was estimated by counts of oviductal eggs, corpora lutea, or enlarged follicles over 11mm for S. odoratus (Iverson, 1977) and 10 mm for K. baurii (Iverson, 1979). The presence of sperm in testes was used to determine maturityinmales. Allturtles were deposited in the National Museum of Natural History, Washington, DC. Means are followed by ± one standard devia-tion. All measurements are in mm.Sternotherus odoratus — Average carapace lengths for eighteen sexually mature females (77 ± 5.69; range = 52-80) and ten sexually maturemales (68 ± 8.79; range = 62-86) support Tinkle's (1961) findings ofsexual dimorphism in southern populations. This, however, was not observedby Tinkle (1961) innorthern specimens. The small size at maturity inboth males and females from south Florida is similar to those findings reportedTinkle (1961) and Gibbons (1970) of 54, 61 and 52, 65, respectively. These data reveal an almost continuous north to south decrease in minimumsize at maturity in Florida stinkpots. Mean clutch size was not significantly different (p>0.05) whether by counts of enlarged follicles (2.22 ±0.441 N = 9), oviductal eggs (2.38 ± 0.51; N = 8), or corpora lutea (2.34 ± 0.76; N = 18). Based on oviductal eggs, clutch size was significantlylarger (t = 2.13; p < 0.05) than the mean (1.74) reported by Gross (1982) in central Florida and significantly smaller (t = 2.87; p < 0.05) thanthe mean (3.2) in north Florida (Iverson, 1977). Clutch size, based on either corpora lutea (r = 0.198) or oviductal eggs (r = 0.178 showed nosignificant positive correlation with female plastron size at 0.05 level. Multiple sets ofcorpora lutea (largest first) followed by oviductal eggs foundinnine female 5. odoratus were 2,2 and 2 eggs (71 mmPL), 2,2,2 and 2 eggs (76 mmPL), 2,2,2 and 2 eggs (75 mmPL), 2,2 and 2 eggs (80 mmPL),3,1 and 0 eggs (76 mmPL), 3,2 and 0 eggs (71 mmPL), 3,2 and 0 eggs (80 mmPL), 2,3 and 2 eggs (81 mmPL), and 2,3 and 2 eggs (85 mmPL).Pre-ovulatory follicles greater than 10 mm were found in all but the last three turtles. Three clutches are clearly produced by some turtles, however,production of four clutches by one female indicates that at least nine eggs are produced annually by south Florida stinkpots. Mean egg size for19 oviductal eggs from eight females examined was 22.59 ± 2.10 (longest diameter; range = 20.0-29.0) by 13.63 ± 0.8 (shortest diameter; range= 12.2-15.0) and was not significantly correlated with female plastron size (r = 0.142; p > 0.05). Itis unclear whether the absence of any signifi-cant positive correlation between clutch size and female plastron size ofsouth Florida sinkpots reflects an artifact of a small sample, a geographictrend, or even local habitat differences. Although this sample was collected froma region further south than Tinkle's (1961), the presence of sexualdimorphism, early maturity, and multiple clutches from south Florida specimens corroborates Tinkle's (1961) summary of southern populations.Kinosternon baurii — Average carapace lengths offourteen sexually mature females (105 ± 10.0; range = 85-125) and twelve sexually maturemales (91 ± 4.97; range = 90-98) indicates sexual dimorphism insize. Difference in mean clutch size for this sample was not significant whetherestimated by counts of enlarged follicles (2.91 ± 1.75; N = 12), oviductal eggs (3.14 ± 1.67; N = 7), or corpora lutea (2.70 ± 1.43; N = 13).No significant difference in clutch size was found when compared to the 2.6 average in north Florida (Iverson, 1979). Multiple sets of corporalutea (largest first) and oviductal eggs found in three turtles were 5,3 and 5 eggs (102 mmPL), 3,5 and 3 eggs (104 mmPL), and 3,2 and 3 eggs(95 mmPL). Pre-ovulatory follicles greater than 10 mm were found in all three specimens. Egg retention is suspected in one turtle (109 mmPL)that contained two corpora lutea (5.7 and 5.3 mm) and one oviductal egg. Clutch size, based either on corpora lutea (r = 0.253; p > 0.05) oroviductal eggs (r = -0.321; p > 0.05) was not significantly correlated withplastron size. These data suggest that at least nine eggs are producedfrom at least three clutches. Mean egg size for 22 oviductal eggs from seven females examined was 27.57 ± 1.63 (longest diameter; range = 25.0-31 .0)by 15.30 ± 1.40 (shortest diameter; range = 11.7-17.3) and egg length was significantly correlated with female plastron size (r = 0.816; p <0.05). No such correlation was found in north Florida (Iverson, 1979) using a larger sample.The influence of tropical conditions is known to play a role in multiple clutching and aseasonal reproduction in turtles (Molland Legler,1971); however, the scarcity of available information concerning south Florida populations as well as the diversity ofsuitable habitats stresses theneed of further studies before possible trends in the reproductive biology of south Florida kinosternids can be established.Roy McDiarmid and J. Steve Godley supported this research both in supplies and in their encouragement. Iespecially thank G. E. Woolfendenfor the use of his lab and to S. E. Trauth for his help in histological examination and inreviewing this manuscript.111Journal of the Arkansas Academy of Science, Vol. 42 [1988], Art. 34http://scholarworks.uark.edu/jaas/vol42/iss1/34

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Notes on the Biology of Thyanta claceala (Hemiptera: Pentatomidae) on Tephrosia virginiana (Leguminosae), a New Host Plant

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