齿股蝇属（学名：Hydrotaea）是家蝇科之下一个双翅目昆虫的属[2]。虽然几乎全球都可见到本属物种的踪影，但在较温暖的气候更常见。在夏季，牠们时常会在粪便上出现，在家畜的排遗附近很常见。本属已知物种有超过130种，当中最常见的为Hydrotaea aenescens[3]。
齿股蝇属
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|---|---|
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| Female Hydrotaea diabolus | |
科学分类 
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| 界： | 动物界 Animalia |
| 门： | 节肢动物门 Arthropoda |
| 纲： | 昆虫纲 Insecta |
| 目： | 双翅目 Diptera |
| 科： | 家蝇科 Muscidae |
| 亚科： | 点蝇亚科 Azeliinae |
| 族： | 点蝇族 Azeliini |
| 属： | 齿股蝇属 Hydrotaea Robineau-Desvoidy, 1830 |
| 模式种 | |
| Musca meteorica | |
| 异名 | |
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如同其他同科的属，本属物种无论在经济方面或公共卫生方面都具有司法科学领域的重要性。无论是在人类医学或兽医学这两方面，本属物种均被多个权威机构认定为最重要的昆虫[4]。 已证明部分本属物种会将某些疾病的病原体携带并传播给温血动物，包括人类[5]。研究人员继续监测这些疾病的传播媒介，因为它们与小母牛的乳房发生的夏季乳房炎（summer mastitis）的传播有关[6]。
物种
本属现时包括约130个物种[3]，当中有超过50个物种有在中国大陆分布[7]。这50个物种当中的15个物种有在河北省分布[7]、三个物种有在四川省分布[8]，另外有五个物种在台湾分布[9]。下列部分物种[3][9][8]：
- H. acuta Paul Stein (entomologist), 1898
- Hydrotaea aenescens (Christian Rudolph Wilhelm Wiedemann, 1830)
- 亲齿污蝇 Hydrotaea affinis Karl, 1935[9]，邻齿股蝇
- 类邻齿股蝇 H. affinoides Ma & Ma, 1997[8]
- Hydrotaea albipuncta (Johan Wilhelm Zetterstedt, 1845)
- Hydrotaea armipes (Fallén, 1825) = 隐齿股蝇 Hydrotaea occulta (Meigen, 1826)
- 刺足齿股蝇 Hydrotaea armipes Fallén
- H. anxia (Zetterstedt, 1838)
- 刺足齿股蝇 Hydrotaea armipes (Carl Fredrik Fallén, 1825)
- H. atrisquama Ringdahl, 1925
- H. australis John Russell Malloch, 1923
- H. basdeni James Edward Collin, 1939
- 双斑齿股蝇 Hydrotaea bimaculata Meigen
- 拟双斑齿股蝇 Hydrotaea bimaculatoides Wang
- H. borussica Stein, 1899
- 斜齿股蝇 H. calcarata[7]
- 开普齿股蝇 H. capensis (Wiedemann, 1818)：属于Ophyra亚属[7]。
- 斑跖齿股蝇 H. chalcogaster (Wiedemann, 1824)[10]：属于Ophyra亚属[7]。
- 栉足齿股蝇 H. cinerea Robineau-Desvoidy, 1830[7]
- H. cristata Malloch, 1918
- 南曲脉齿股蝇 Hydrotaea cyrtoneura Seguy, 1938
- 曲脉齿股蝇 Hydrotaea cyrtoneurina (Zetterstedt, 1845)
- 常齿股蝇 H. dentipes Fabricius, 1805)[7]
- H. depressa Huckett, 1954
- 双斑齿股蝇 H. diabolus (Harris, 1780)[7]
- 渡口齿股蝇 Hydrotaea dukouensis Ni, 1982
- 隐齿股蝇 H. floccosa Macquart, 1835[7]
- 裸齿股蝇 Hydrotaea glabricula (Fallén, 1825)
- Hydrotaea hennigi Pont, 1986
- H. hirticeps (Fallén, 1824)
- H. hirtipes (Malloch, 1924)
- Hydrotaea houghi Malloch, 1916
- 夏氏齿股蝇 H. hsiai[7]
- 银眉齿股蝇 H. ignava (Moses Harris, 1780)：属于Ophyra亚属[7]。
- H. irritans (Fallén, 1823)
- 雅氏齿股蝇 H. jacobsoni (Stein, 1919)[2][9]，爪哇齿股蝇
- H. lasiophthalma Malloch, 1919
- 长鬃齿股蝇 H. logisteta Ma & Ma, 1997[8] = Hydrotaea longiseta Feng & Feng, 1997
- H. lundbecki (Michelsen, 1978)
- 玛曲齿股蝇 Hydrotaea maquensis Wu, 1990
- H. meridionalis Porschinskiy, 1882
- 速跃齿股蝇 H. meteorica Linnaeus, 1758)[7]
- 斑翅齿股蝇 Hydrotaea militaris (Johann Wilhelm Meigen, 1826)
- 拟毛足齿股蝇 Hydrotaea mimopilipes Ma & Zhao , 1992
- 单鬃齿股蝇 H. monochaeta Ma & Wu, 1986[11]
- 多鬃齿股蝇 Hydrotaea multichaeta Wu, 1990
- H. nidicola Malloch, 1925
- 裸刺齿股蝇 Hydrotaea nudispinosa Ma,sp.n
- 暗额齿股蝇 H. obscurifrons (Sabrosky, 1949)：属于Ophyra亚属[7]。
- 钝鬃齿股蝇 Hydrotaea obtusiseta Feng & Feng, 1997
- 钝齿股蝇 H. obtusisteta Ma & Ma, 1997[8]
- 隐齿股蝇 H. occulata (Meigen, 1826)[2][9]
- 角逐齿股蝇 H. palaestrica (Meigen, 1826)[7]
- H. pallicornis Pont, 1973
- 曲股齿股蝇 Hydrotaea pandellei Stein, 1899
- 豹股齿股蝇 Hydrotaea pardifemorata Xue, Zhang & Liu, 1994
- 小齿股蝇 H. parva Meade, 1889[7]
- H. pellucens Porchinskiy, 1879
- H. penicillata (Camillo Róndani, 1866)
- 毛足齿股蝇 Hydrotaea pilipes Stein, 1903
- 长毛齿股蝇 Hydrotaea pilitibia Stein, 1916，毛胫齿股蝇
- 单毛齿股蝇 Hydrotaea ringdahli Stein, 1916
- H. rostrata Robineau-Desvoidy, 1830
- 曲胫齿股蝇 Hydrotaea scambus (Zetterstedt, 1838)[7] = Hydrotaea seambus Zetterstedt
- 拟常齿股蝇 Hydrotaea similis Meade, 1887
- 林齿股蝇 Hydrotaea silva Hsue
- 刺腿齿股蝇 Hydrotaea spinefemora Shinonaga & Kano, 1971[2][9]
- H. spinifemorata Huckett, 1954
- 刺颊齿股蝇 Hydrotaea spinigena Xue & Li, 1995
- 厚环齿股蝇， 也称具刺齿股蝇， Hydrotaea spinigera Stein, 1910：属于Ophyra亚属[7]。
- 刺齿股蝇 Hydrotaea spinosa Stein
- 多刺齿股蝇 Hydrotaea spinosus Ye & Ma, 1992
- 台湾齿股蝇 Hydrotaea taiwanensis Shinonaga & Kano, 1987[2][9]
- H. tersa (Wiedemann, 1830)
- 虎股齿股蝇 Hydrotaea tigrifemorata Xue, Zhang & Liu, 1994
- H. tuberculata Róndani, 1866
- 单刺齿股蝇 Hydrotaea unispinosa Stein, 1898
- 黑胸齿股绳 H. velutina Robineau-Desvoidy, 1830[11]
- 新疆齿股蝇 Hydrotaea xinjiangensis Ni, 1982
- 昭盟齿股蝇 Hydrotaea zhaomenga Xue , 1994
描述
幼体e of this genus are often 多态性 (生物学) obligate 肉食动物s. The second and third instars are predators, and the first is also carnivorous in some species. Some species have 同类相食 final instars. The smallest larvae are under 6 mm[12] and the largest are up to 16 mm.[13] The abdomen has ventral welts and large 气门s with Sinuosity slits.[3]
Adults commonly feed on the 血液 of 哺乳动物s. They are able to reopen wounds that are almost completely healed. Mouthpart 形态学 (生物学) in the genus ranges from sponging mouthparts to mouths with rasping teeth. Many species have enlarged prestomal teeth. The metathorax spiracle is covered in long, thick setae.[13] The average male Hydrotaea is 6.5-8.5 mm and the average female is 5.75-7.5 mm. They are very light brown to bluish black with large, red eyes and plumose 触角.
分布及栖息地
本属物种大多数分布在北半球[7]古北界的欧洲、亚洲和北美洲比较和暖的地区[3]，在非洲南部、南美洲和澳洲区亦有少数种分布[7][3]。这些齿股蝇通常都在市区环境栖息，会被发酵了的东西吸引，常见于植物、粪便及分解中的腐肉，主要是死去超过十日的尸体[3]。
生命周期
The 生物生命周期 of Hydrotaea rostrata has been studied in the field of 法医昆虫学. Mature flies seek out decay, preferably in material that has been dead for an extended amount of time. Masses of 蛆s, which are often characteristic of other species of flies, are not typical of H. rostrata. The larvae of this species progress through three stages, or instars, which are then followed by the formation of a 蛹. The adult fly emerges from the pupa. The developmental process from egg to adult takes between 518.4 and 1555.6 hours, according to one study in Australia. Development is more rapid in warmer temperatures of 19—30 °C（66—86 °F）. In cooler temperatures of 12—18 °C（54—64 °F）, development may take up to 64.5 days.[14]
The larvae of another species, the black dump fly (H. aenescens), inhabit fecal material and consume other larvae, including those of 家蝇, the housefly.[15][16] The black dump fly is commercially available for use in housefly control.[15] It is also useful in forensics, as it may inhabit 尸体.[17]
Some larvae are able to seek shelter underground in cold conditions.[5]
Associated pathogens
Research has incriminated Hydrotaea irritans as a vector of summer mastitis, a 牛亚科 infection that can be caused by multiple suspected 细菌.[6] The research allowed flies inoculated with select bacteria from a sample representing summer mastitis to come in contact with the udders of 家牛. The bacteria appeared in some of the cows and on the bodies of just over a third of the doctored flies. The evidence indicates that H. irritans transmits the bacterial species 金黄色葡萄球菌, Streptococcus dysgalactiae, Streptococcus uberis, Streptococcus agalactiae, Arcanobacterium pyogenes, Peptostreptococcus indolicus, and Fusobacterium necrophorum.[6]
H. irritans attacks many other warm-blooded animals, including humans.[5]
H. aenescens also carries bacteria, particularly Salmonella enterica subsp. enterica.[18]
司法科学的重要性
本属物种在世界各地司法科学个案方面有其重要性，因为这些物种的存在及数量显示了尸体现象（post-mortem interval，PMI）发生的时间[17]。这些物种会在尸体开始分解作用之后四至五个月栖息于尸体之内[12]。牠们显示了尸体未有被火化，而且在较早期被丽蝇所栖息的期间已完结[19]。 Hydrotaea larvae may feed on each other and on other flies, such as blow-flies.[12]
Hydrotaea can be used to identify 药物s and to determining whether a body was relocated. Hydrotaea spinigera can make up 70% of the muscid fly population on a corpse in forested habitat.[20] Hydrotaea rostrata may arrive at a decomposing body on the second day of decay, and may stay up to 34 days or until the body is 骨骼系统ized.[21]
参考文献
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