Antennal Morphology and Sensilla Distribution of Scambus brevicornis with Scanning Electron Microscopy Observation

doi:10.11924/j.issn.1000-6850.casb20190900613

Abstract

Abstract:

To study the external morphology and the type of sensilla of adult Scambus brevicornis’s antennae, the sex difference was compared by scanning electron microscope. The results showed that the antennae of the adult S. brevicornis was flagelliform and the antennae were composed of scape, pedicle and flagellum. The female adult had 21 subsegments and the male adult had 25 subsegments. There were six sensillas on the adult antennae, including sensilla trichodea, sensilla placodea, sensilla coeloconica, sensilla chaetica, B?hm bristles and sensilla campaniformia. There were sexual differences in the density between male and female adults.

Key words: Scambus brevicornis, antenna, sensilla, morphology, scanning electron microscopy

CLC Number:

S763.43

Zhao Hongying, Sun Yan, Wang Qi. Antennal Morphology and Sensilla Distribution of Scambus brevicornis with Scanning Electron Microscopy Observation[J]. Chinese Agricultural Science Bulletin, 2020, 36(6): 64-68.

Figures/Tables 4

References 25

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位置	性别	柄节	梗节	鞭节
位置	性别	柄节	梗节	F1~F5	F6~F10	F11~F15	F16~F20	F21~F25
基部直径/μm	雄性	180.73±0.56	153.07±0.83	136.76±11.8	132.17±3.1	118.53±7.4	102.65±25.5	84.97±8.5
基部直径/μm	雌性	91.36±0.36	135.03±0.78	100.79±7.45	101.27±4.76	84.93±6.49	74.82±1.85	81.96±0.56
端部直径/μm	雄性	157.12±1.89	122.9±0.46	153.01±4.45	156.76±3.42	138.25±7.35	121.72±28.82	103.09±10.15
端部直径/μm	雌性	194.27±0.44	98.2±0.87	112.28±4.71	107.99±2.66	105.74±2.75	104.3±0.76

位置	性别	柄节	梗节	鞭节
位置	性别	柄节	梗节	F1~F5	F6~F10	F11~F15	F16~F20	F21~F25
基部直径/μm	雄性	180.73±0.56	153.07±0.83	136.76±11.8	132.17±3.1	118.53±7.4	102.65±25.5	84.97±8.5
基部直径/μm	雌性	91.36±0.36	135.03±0.78	100.79±7.45	101.27±4.76	84.93±6.49	74.82±1.85	81.96±0.56
端部直径/μm	雄性	157.12±1.89	122.9±0.46	153.01±4.45	156.76±3.42	138.25±7.35	121.72±28.82	103.09±10.15
端部直径/μm	雌性	194.27±0.44	98.2±0.87	112.28±4.71	107.99±2.66	105.74±2.75	104.3±0.76

部位	性别	STⅠ	STⅡ	STⅢ	SP	SC	SCo	BB	SCa
基部直径/μm	雄性	3.06±0.10	2.18±0.11	5.34±0.02	2.86±0.15	2.47±0.13	2.92±0.02	2.18±0.04	2.13±0.06
基部直径/μm	雌性	1.97±0.11	1.85±0.03	4.56.30±0.05	1.55±0.12	1.71±0.02	1.45±0.03	1.74±0.05	1.86±0.03
密度	雄性	47.60±0.58	48.70±0.43	23.40±0.31	6.90±0.28	1.90±0.10	13.60±0.34	22.60±0.23	1.50±0.10
密度	雌性	35.40±1.27	42.10±1.07	14.00±0.57	4.40±0.21	1.80±1.10	10.10±0.23	17.50±0.14	1.10±0.10

部位	性别	STⅠ	STⅡ	STⅢ	SP	SC	SCo	BB	SCa
基部直径/μm	雄性	3.06±0.10	2.18±0.11	5.34±0.02	2.86±0.15	2.47±0.13	2.92±0.02	2.18±0.04	2.13±0.06
基部直径/μm	雌性	1.97±0.11	1.85±0.03	4.56.30±0.05	1.55±0.12	1.71±0.02	1.45±0.03	1.74±0.05	1.86±0.03
密度	雄性	47.60±0.58	48.70±0.43	23.40±0.31	6.90±0.28	1.90±0.10	13.60±0.34	22.60±0.23	1.50±0.10
密度	雌性	35.40±1.27	42.10±1.07	14.00±0.57	4.40±0.21	1.80±1.10	10.10±0.23	17.50±0.14	1.10±0.10