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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Scarabaeoidea » Scarab Beetles (Scarabaeidae) » Fruit and Flower Chafers (Cetoniinae) » Valgini » Valgus » Valgus seticollis
Photo#88469
Which Valgus species? - Valgus seticollis - male
Copyright © 2006 Jim McClarin

Which Valgus species? - Valgus seticollis - Male
Salem, Hillsborough County, New Hampshire, USA
November 24, 2006
Size: about 7 mm
The medial groove or canal in the pronotum can be most clearly seen on this wet beetle. This feature was not particularly noticeable when the pronotal setae were dry.

btw, I note in Web images that V. ca*lifornicus, V. mex*icanus and V. minutus also have a medial groove on the pronotum, so V. cana*liculatus is part of a generic trend, not the exception to the trend.

Images of this individual: tag all
Which Valgus species? - Valgus seticollis - male Which Valgus species? - Valgus seticollis - male Which Valgus species? - Valgus seticollis - male Which Valgus species? - Valgus seticollis - male Which Valgus species? - Valgus seticollis Which Valgus species? - Valgus seticollis - male Which Valgus species? - Valgus seticollis - male Which Valgus species? - Valgus seticollis - male Which Valgus species? - Valgus seticollis - male
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Contributed by Jim McClarin on 25 November, 2006 - 11:34am
Last updated 8 July, 2021 - 3:15am

Moved
Moved from Valgus canaliculatus.
… Boris Büche, 8 July, 2021 - 3:15am login or register to post comments

Male
Not only does the trailing edge of the next-to-last sternite show a forward concavity whereas that of the female would be a continuous arc (the mid-point of which would be farthest toward the rear), the absence of a pygidial spine that females of this species (but not V. set*icollis) have clearly indicates masculine gender.

In my reading I found that females do not eat, hence all V. canaliculatus individuals visiting flowers must be males. Excavations of termite galleries (or in this case, perhaps those of ants) is likely to be the best means of finding female V. canaliculatus.
… Jim McClarin, 27 November, 2006 - 8:02pm login or register to post comments

Moved
Moved from Valgus.
… Jim McClarin, 27 November, 2006 - 6:15pm login or register to post comments

Valgus canaliculatus
Nice range of detail shots, and to me agrees quite nicely with Valgus canaliculatus. It is obviously very fresh - the scales would wear away quite readily, I wouldn't expect to see any like this normally. You're right about squamiger, it's a syn. of seticollis.
Your light arena shots are getting better all the time.
… Phillip Harpootlian, 27 November, 2006 - 9:03am login or register to post comments

 
Thank you, Phillip.
The pattern of markings still differs from other specimens on bugguide but I suppose that might be a regional difference such as seen in other beetle species.
… Jim McClarin, 27 November, 2006 - 6:18pm login or register to post comments

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