86:
61:
41:
290:. This location consists of a two and a half mile stretch of the river downstream from the Douglas Road crossing. This area supports the only stable population of the Hungerford's crawling water beetle, recording nearly 1052 beetles when last counted in 2002. This area is largely within and along the boundary of the
380:
of the
Hungerford's crawling water beetle is more or less ovoid, with a markedly convex upperside. They have a yellowish-brown color with irregular dark markings. They are extremely small (3.8–4.3 millimetres or 0.15–0.17 inches long) which may contribute to the difficulty in locating them. Their
344:
and the
Saugeen River mainstem. In 1986, 42 beetles were identified at a site downstream from a dam on the North Saugeen. An unspecified number of beetles were last recorded in 2001, but surveys in 2002 and 2008 uncovered no specimens. As a result, the status of this population of Hungerford's
319:
The Carp Lake River and Van Hetton Creek identifications were significant as they represented a new location beyond those originally identified when the
Hungerford's crawling water beetle was categorized as endangered in 1994. This suggests that the rare beetle may occur in other sites as yet
316:, two adult beetles were found in surveys in 1989 and again in 1996 two more adults were found. Still, the status of the population there remains uncertain. In July 1999, six additional adult beetles were identified elsewhere in the Mackinaw State Forest in Van Hetton Creek.
400:
as well as parts of its hindlegs. These hindleg plates do not move although they are not fused to the beetle's centerline. As with all
Haliplidae, these specialized hindleg plates function as air storage devices supplementing the air carried under the wing covers.
353:
It is believed that the
Hungerford's crawling water beetle requires cool (15–25 °C or 59–77 °F), swift flowing alkaline streams with sand and gravel bottoms. While in their larval stage, the beetles gather in concentrations of
404:
Although most other
Haliplidae are capable of flight, only one observation of a flying Hungerford's crawling water beetle has been made. It is not certain how far adults fly or what triggers them to initiate flight.
301:, where 4 adult specimens were recorded in 1997, but erosion at the road seems to have harmed the habitat and no specimens were found in the last survey conducted in 2003.
262:. It is the most endangered species in Michigan and at the time of its listing, the only one whose occurrences in the United States were limited exclusively to Michigan.
924:
227:
Draft
Recovery Plan for the species published in August 2004 estimates roughly 1000 individuals are present in the wild. In 2010, a five-year summary report by the
1011:
645:
291:
898:
937:
565:
532:
474:
228:
991:
775:
246:
Hungerford's crawling water beetle was categorized as endangered on March 7, 1994, effective April 6, 1994, under the provisions of the U.S.
674:
270:
Known populations of
Hungerford's crawling water beetles are limited to cold-water streams in only seven locations. Four of these are in
392:
As characteristic of all
Haliplidae, the hindlegs of Hungerford's crawling water beetles have very distinctive and comparatively large
1016:
1006:
996:
48:
309:
942:
258:. At the time that the species was listed on the endangered species list, it was found only in three U.S. sites, all in
305:
224:
429:
286:
Almost all known
Hungerford's crawling water beetles live in a single location: the East Branch of the Maple River in
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two more sites have yielded official records of Hungerford's crawling water beetles. Along the East Branch of the
686:
85:
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818:
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Grant, Michael; Kopple, Robert Vande (2009). "A Stable Isotope Investigation into the Feeding Behavior of
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Of the remaining sites, a second is also in Emmet County. This is near the Oliver Road crossing of the
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dams and anthropogenic structures such as culverts and dams. The larvae may specialize in feeding on
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30:
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741:
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250:. The Hungerford's crawling water beetle is also protected as a Schedule 1 endangered species in
80:
65:
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963:
771:
690:
968:
761:
725:
498:
213:
759:
R. E. Roughley (2001). "Haliplidae". In Ross H. Arnett, Jr. & Michael C. Thomas (ed.).
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Spangler, P.J. 1954. A new species of water beetle from Michigan (Coleoptera: Haliplidae).
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333:
985:
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NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer
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220:
716:
Spangler (Coleoptera: Haliplidae), a Federally Endangered Crawling Water Beetle".
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911:
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Populations of Hungerford's crawling water beetles in Canada inhabit the North
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355:
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are nearly parallel for the basal two-thirds before widening at the sides.
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655:(Report). Ottawa: Committee on the Status of Endangered Wildlife in Canada
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The larvae of this beetle can be identified by the presence of a curved
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crawling water beetles in the North Saugeen is uncertain at present.
251:
137:
127:
107:
812:
792:
377:
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646:
COSEWIC Status Report on the Hungerford's Crawling Water Beetle
816:
358:
and in slower moving waters. The beetles are thought to favor
385:
are characterized by perforated stripes. The sides of their
604:"Hungerford's Crawling Water Beetle (Brychius hungerfordi)"
825:
231:found the population to be essentially unchanged.
639:
637:
635:
633:
631:
629:
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8:
212:) is a critically endangered member of the
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223:found in northeastern North America. The
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39:
20:
515:
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511:
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292:University of Michigan Biological Station
559:) 5-Year Review: Summary and Evaluation"
471:Environmental Conservation Online System
791:Rolf Georg Beutel (February 25, 2008).
610:. Government of Canada. 2 February 2021
566:United States Fish and Wildlife Service
533:United States Fish and Wildlife Service
475:United States Fish and Wildlife Service
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396:plates that cover most of the beetle's
229:United States Fish and Wildlife Service
493:
491:
457:
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1012:Endangered fauna of the United States
793:"Haliplidae - Crawling water beetles"
555:"Hungerford's crawling water beetle (
522:"Hungerford's crawling water beetle (
7:
463:"Hungerford's crawling water beetle
412:on the last segment of the abdomen.
234:The species was first discovered by
683:Michigan Natural Features Inventory
679:Hungerford's crawling water beetle"
24:Hungerford's crawling water beetle
440:. Arlington, Virginia: NatureServe
204:Hungerford's crawling water beetle
14:
84:
608:Species at risk public registry
1:
992:NatureServe imperiled species
520:Carrie Tansy (August 2008).
428:NatureServe (7 April 2023).
387:dorsal plate behind the head
306:Montmorency County, Michigan
225:US Fish and Wildlife Service
1033:
718:The Coleopterists Bulletin
238:Paul J. Spangler in 1954.
1017:Beetles described in 1954
730:10.1649/0010-065X-63.1.71
687:Michigan State University
368:, a type of green algae.
365:Dichotomosiphon tuberosus
186:
179:
81:Scientific classification
79:
57:
37:
28:
23:
1007:Beetles of North America
797:Tree of Life Web Project
376:Like all Haliplidae the
997:ESA endangered species
689:. 2007. Archived from
526:) Draft Recovery Plan"
465:(Brychius hungerfordi)
288:Emmet County, Michigan
248:Endangered Species Act
338:Bruce County, Ontario
314:Mackinaw State Forest
857:Brychius hungerfordi
827:Brychius hungerfordi
714:Brychius hungerfordi
677:Brychius hungerfordi
648:Brychius hungerfordi
557:Brychius hungerfordi
524:Brychius hungerfordi
432:Brychius hungerfordi
209:Brychius hungerfordi
190:Brychius hungerfordi
693:on January 19, 2011
398:abdominal underside
256:Species at Risk Act
172:B. hungerfordi
31:Conservation status
568:. December 9, 2010
282:Michigan locations
979:
978:
964:Open Tree of Life
819:Taxon identifiers
777:978-0-8493-1925-9
324:Ontario locations
274:and three are in
266:Known populations
242:Endangered status
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16:Species of beetle
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181:Binomial name
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802:February 25,
800:. Retrieved
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724:(1): 71–83.
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697:February 25,
695:. Retrieved
691:the original
682:
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669:
657:. Retrieved
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612:. Retrieved
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572:February 25,
570:. Retrieved
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539:February 25,
537:. Retrieved
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478:. Retrieved
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342:Rankin River
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236:entomologist
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18:
951:NatureServe
912:iNaturalist
851:Wikispecies
588:Entom. News
383:wing covers
372:Description
312:inside the
310:Black River
49:NatureServe
1002:Haliplidae
986:Categories
764:, Volume 1
593:; 113–117.
535:, Region 3
416:References
410:urogomphus
378:adult form
356:microalgae
254:under the
217:Haliplidae
148:Haliplidae
138:Coleoptera
118:Arthropoda
66:Endangered
45:Imperiled
768:CRC Press
650:in Canada
166:Species:
104:Kingdom:
98:Eukaryota
956:2.114212
930:10699172
865:BioLib:
842:Q2190818
836:Wikidata
746:86779384
738:29739212
659:23 April
614:23 April
480:23 April
444:23 April
272:Michigan
260:Michigan
159:Brychius
144:Family:
114:Phylum:
108:Animalia
94:Domain:
969:3421758
904:1044486
891:1171424
349:Habitat
276:Ontario
154:Genus:
134:Order:
128:Insecta
124:Class:
69: (
47: (
943:111951
917:215473
875:ECOS:
868:685676
774:
744:
736:
360:beaver
340:, the
252:Canada
214:family
925:IRMNG
742:S2CID
734:JSTOR
653:(PDF)
562:(PDF)
529:(PDF)
502:10580
394:coxal
334:Scone
332:near
938:ITIS
899:GBIF
878:6123
804:2011
772:ISBN
699:2011
661:2023
616:2023
574:2011
541:2011
482:2023
446:2023
886:EoL
726:doi
497:59
336:in
304:In
219:of
71:ESA
988::
966::
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940::
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624:^
606:.
591:65
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508:^
499:FR
490:^
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206:(
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
