occurrenceID	taxonID	catalogNumber	collectionCode	institutionCode	typeStatus	verbatimLabel	sex	individualCount	eventDate	recordedBy	recordNumber	decimalLatitude	decimalLongitude	minimumElevationInMeters	maximumElevationInMeters	minimumDepthInMeters	maximumDepthInMeters	country	stateProvince	municipality	locality	references	associatedOccurrences	associatedReferences	associatedSequences	basisOfRecord	eventRemarks	occurrenceRemarks
C17B87FF3C3C1235C0E6FD50FE63F307.mc.F9BA3CB43C3D1235C2F3FAD3FDA7F7E7	C17B87FF3C3C1235C0E6FD50FE63F307.taxon				syntype	of Hydrochus argutus Knisch, which are part of the Orchymont / Knisch types collection. Five of the syntypes		1												Knisch	Orchymont	https://treatment.plazi.org/id/C17B87FF3C3C1235C0E6FD50FE63F307#F9BA3CB43C3D1235C2F3FAD3FDA7F7E7				MaterialCitation		
C17B87FF3C3C1235C0E6FD50FE63F307.mc.F9BA3CB43C3D1235C24AFAF7FBF3F7CB	C17B87FF3C3C1235C0E6FD50FE63F307.taxon				syntype	are females, one of which is in three pieces. This specimen has been dissected by a prior worker, but the genital segments are not with the specimen. One syntype		1		This											One	https://treatment.plazi.org/id/C17B87FF3C3C1235C0E6FD50FE63F307#F9BA3CB43C3D1235C24AFAF7FBF3F7CB				MaterialCitation		
C17B87FF3C3C1235C0E6FD50FE63F307.mc.F9BA3CB43C3D1235C41FFAABFE6FF673	C17B87FF3C3C1235C0E6FD50FE63F307.taxon				syntype	labeled as male by a prior worker, is missing the head and prothorax, has been dissected, but the genital segments and male genitalia are not with the specimen. One syntype		1													One	https://treatment.plazi.org/id/C17B87FF3C3C1235C0E6FD50FE63F307#F9BA3CB43C3D1235C41FFAABFE6FF673				MaterialCitation		
C17B87FF3C3C1235C0E6FD50FE63F307.mc.F9BA3CB43C3D1235C276FB63FD2AF657	C17B87FF3C3C1235C0E6FD50FE63F307.taxon				syntype	gender unknown, is in two pieces. The genital segments are not with the specimen, hence the gender is unknown. One male syntype		1		The											One	https://treatment.plazi.org/id/C17B87FF3C3C1235C0E6FD50FE63F307#F9BA3CB43C3D1235C276FB63FD2AF657				MaterialCitation		
C17B87FF3C3C1235C0E6FD50FE63F307.mc.F9BA3CB43C3D1235C4B4FBF3FD6AF6C7	C17B87FF3C3C1235C0E6FD50FE63F307.taxon				lectotype	and have labeled it such. This specimen is imaged (Fig. 1). The lectotype		1		This											The	https://treatment.plazi.org/id/C17B87FF3C3C1235C0E6FD50FE63F307#F9BA3CB43C3D1235C4B4FBF3FD6AF6C7				MaterialCitation		
C17B87FF3C3C1235C0E6FD50FE63F307.mc.F9BA3CB43C3D1235C28EFB97FE21F553	C17B87FF3C3C1235C0E6FD50FE63F307.taxon				lectotype	has the following labels (Fig. 12 E): “ Bras. Corumba [Matto Grosso] // Kniž det. argutus m. // Coll. A. Knisch COTYPUS // Ex coll. A. d’Orchymont // HABITUS / GENIT. DIGI- TAL IMAGES captured 2019 P. D. Perkins // [red] LECTOTYPE Hydrochus argutus Knisch desig. P. D. Perkins. ” The seven other syntypes		1		Coll. A. Knisch & Ex & P. D. Perkins & P. D. Perkins.										Matto Grosso	Bras. Corumba	https://treatment.plazi.org/id/C17B87FF3C3C1235C0E6FD50FE63F307#F9BA3CB43C3D1235C28EFB97FE21F553				MaterialCitation		
C17B87FF3C3D1235C0E6FEC3FCE9F1CC.mc.F9BA3CB43C3D1235C0E6FF1CFC51F15C	C17B87FF3C3D1235C0E6FEC3FCE9F1CC.taxon			RBINS	syntype	The RBINS kindly provided eight syntypes of Hydrochus corruscans Bruch, which are part of the Orchymont / Knisch types collection. The syntypes consist of six females, one specimen of unknown gender (unknown because a prior worker dissected the specimen, but there are no genital segments or male genitalia with the specimen), and one male. I have selected the male to serve as lectotype and labeled it as such, and provide images of the habitus, male genitalia, and labels of that specimen (Figs. 2, 12 D). Lectotype labels (Fig. 12 D): “ Hydrochus corruscans Bruch // Coll. A. d’Orchymont // Cotypus // Rep. ARGENTINA Prov. Buenos Aires 1. 1. 1915 C. Bruch // HABITUS / GE- NIT. DIGITAL IMAGES captured 2019 P. D. Perkins // [red] LECTOTYPE Hydrochus corruscans Bruch desig. P. D. Perkins. ” The seven other syntypes have been labeled paralectotypes.		1	1915-01-01	Coll. A. d'Orchymont & C. Bruch & P. D. Perkins & P. D. Perkins.								Argentina	Ciudad Autonoma de Buenos Aires	Knisch	The	https://treatment.plazi.org/id/C17B87FF3C3D1235C0E6FEC3FCE9F1CC#F9BA3CB43C3D1235C0E6FF1CFC51F15C				MaterialCitation		
C17B87FF3C3D1232C0E6FD04FC65F52B.mc.F9BA3CB43C3D1235C12EFDFCFD82F0FF	C17B87FF3C3D1232C0E6FD04FC65F52B.taxon			RBINS	syntype	Knisch, 1920: 57		1		Coll. R. I. Sc. N. B. Bras. Corumba & P. D. Perkins & P. D. Perkins.												https://treatment.plazi.org/id/C17B87FF3C3D1232C0E6FD04FC65F52B#F9BA3CB43C3D1235C12EFDFCFD82F0FF				MaterialCitation		
C17B87FF3C36123FC0E6FD14FEB3F553.mc.F9BA3CB43C36123EC11DFD8CFD84F0EF	C17B87FF3C36123FC0E6FD14FEB3F553.taxon			RBINS	syntype	Knisch 1920: 59		1		Dr. Drake & Coll. Kraatz & A. Kniz & P. D. Perkins & P. D. Perkins.								Paraguay			Paraguay	https://treatment.plazi.org/id/C17B87FF3C36123FC0E6FD14FEB3F553#F9BA3CB43C36123EC11DFD8CFD84F0EF				MaterialCitation		
C17B87FF3C34123DC0E6FC34FAACF5B7.mc.F9BA3CB43C34123DC0E6FD67FCD0F6BB	C17B87FF3C34123DC0E6FC34FAACF5B7.taxon			RBINS	syntype	The RBINS kindly provided seven syntypes of Hydrochus purpureus Knisch, which are part of the Orchymont / Knisch types collection. The syntypes consist of three males, three females, and one specimen of unknown gender (a prior worker dissected the specimen, but there are no apical genital segments or male genitalia with the specimen). One of the syntype females bears a lectotype label, by J. L. Hellman, but this designation was never published. This label has been reversed and “ unpub. ” written on the reverse side. There are at least three species represented by the syntypes. The males represent two species which markedly differ externally, and the male genitalia also distinctively differ. I have selected one of the two males from Brazil, “ Matto Grosso, ” to serve as lectotype, have labeled it such, and have imaged the habitus, male genitalia and labels of this specimen (Figs. 8, 13 C). The other male from “ Matto Grosso ” is conspecific with the lectotype. The third male, clearly a different species, is from Argentina, and bears a label “ Hydrous corruscans Bruch A. d’Orchym. Rev. ” Lectotype labels (Fig. 13 C): “ Bras. Corumba [Matto Grosso] // Coll. A. Knisch COTYPUS // det. Kniž purpureus // coll. A. d’Orchymont // HABITUS / GENIT. DIGITAL IM- AGES captured 2019 P. D. Perkins // [red] LECTOTYPE Hydrochus purpureus Knisch desig. P. D. Perkins. ” The six non-lectotype syntypes have been labeled paralectotypes.		1		J. L. Hellman & Coll. A. Knisch & A. d'Orchymont & P. D. Perkins & P. D. Perkins.								Brazil			Brazil	https://treatment.plazi.org/id/C17B87FF3C34123DC0E6FC34FAACF5B7#F9BA3CB43C34123DC0E6FD67FCD0F6BB				MaterialCitation		
C17B87FF3C35123DC0E6F884FF48F2FC.mc.F9BA3CB43C35123DC0E6F9DCFEDFF4E4	C17B87FF3C35123DC0E6F884FF48F2FC.taxon			RBINS	syntype	The RBINS kindly provided five syntypes of Hydrochus secretus Knisch, which are part of the Orchymont / Knisch types collection		1		Coll. R. I. Sc. N. B. Bras. Corumba & Coll. A. Knisch & Ex Coll. A. d'Orchymont & P. D. Perkins.			9.13							The	Hydrochus secretus Knisch	https://treatment.plazi.org/id/C17B87FF3C35123DC0E6F884FF48F2FC#F9BA3CB43C35123DC0E6F9DCFEDFF4E4				MaterialCitation		
C17B87FF3C35123DC0E6F884FF48F2FC.mc.F9BA3CB43C35123DC12BF9F0FBE4F3E0	C17B87FF3C35123DC0E6F884FF48F2FC.taxon			RBINS	syntype	The syntypes consist of two males, and three females. The two males have been dissected, and are conspecific. The females appear to also represent the same species. I have selected one of the males, a good specimen, to serve as lectotype, have labeled it such, and have imaged the habitus, male genitalia and labels of this specimen (Figs. 9, 13 E). The second male was dissected by a prior worker; the specimen is quite fragmentary, in five pieces. Lectotype labels (Fig. 13 E): “ Coll. R. I. Sc. N. B. Bras. Corumba [Matto Grosso] // Kniž det. secretus m. // Coll. A. Knisch COTYPUS // Ex Coll. A. d’Orchymont // Hydrochus secretus Knisch det. J. L. Hellman // HABI- TUS / GENIT. DIGITAL IMAGES captured 2019 P. D. Perkins // [red] LECTOTYPE Hydrochus secretus Knisch desig. P. D. Perkins. ” The four non-lectotype syntypes have been labeled paralectotypes.	male	2030		Coll. R. I. Sc. N. B. Bras. Corumba & Coll. A. Knisch & Ex Coll. A. d'Orchymont & P. D. Perkins.			9.13							The	Hydrochus secretus Knisch	https://treatment.plazi.org/id/C17B87FF3C35123DC0E6F884FF48F2FC#F9BA3CB43C35123DC12BF9F0FBE4F3E0				MaterialCitation		
C17B87FF3C35123AC0E6FC53FAA3F62F.mc.F9BA3CB43C35123DC109FCACFE74F030	C17B87FF3C35123AC0E6FC53FAA3F62F.taxon			MNHN, MCZ	neotype	Chevrolat		1	1929-06	D. F. Poey. Unique & P. J. Darlington & P. D. Perkins & P. D. Perkins.								Cuba	Cienfuegos	Antoine Mantilleri	Chevrolat	https://treatment.plazi.org/id/C17B87FF3C35123AC0E6FC53FAA3F62F#F9BA3CB43C35123DC109FCACFE74F030				MaterialCitation		
C17B87FF3C331239C0E6FD2FFD70F657.mc.F9BA3CB43C33123BC1F1FD87FD8FF0D6	C17B87FF3C331239C0E6FD2FFD70F657.taxon			RBINS	syntype	Knisch 1921: 2		1		Coll. R. I. Sc. N. B. Bras. Corumba & Coll. A. Knisch & P. D. Perkins & P. D. Perkins.												https://treatment.plazi.org/id/C17B87FF3C331239C0E6FD2FFD70F657#F9BA3CB43C33123BC1F1FD87FD8FF0D6				MaterialCitation		
