yellow-horned flower longhorn beetle

(Strangalia luteicornis)

Conservation Status
yellow-horned flower longhorn beetle
Photo by Mike Poeppe
  IUCN Red List

not listed


NNR - Unranked


not listed


Yellow-horned flower longhorn beetle is a medium-sized, early season beetle. It occurs in the United States east of the Great Plains and in southern Ontario Canada. In Minnesota it occurs in the southeast quarter of the state, where it is at the northwest extent of its range, and is absent from the remainder of the state. Larvae feed on the dead and decaying wood of various shrubs and hardwood trees, including viburnum, grape, beech, and elm. Adults are found from May to July on flowers in deciduous forests and edges. They feed on the nectar and possibly also pollen of a variety of flowers, especially sumac.

Adults are to 916 (9.0 to 14.0 mm) in length, elongate, slender, cylindrical, and strongly tapered to the rear. They are yellow or brownish-yellow with black markings. Males are slightly smaller and more slender than females.

The head is angled forward in front and is abruptly constricted in back forming a neck that is visible when viewed from above. It is mostly yellow except for a pair of black spots on top of the head, a black spot on each side of the head in front of each compound eye, and some black mouth parts. The compound eyes are large, black, and deeply notched. The antennae are thread-like, slender, entirely yellow, and long, at least half as long as the body. The base of each antenna is inserted in the notch in the compound eye. All segments are uniformly slender. The third segment is much longer than the first (scape), the fourth is shorter than the third, and the fifth is longer than the fourth. The neck is yellow and has two black longitudinal stripes.

The upper thoracic shield (pronotum) is bell-shaped and sinuate, narrow at the front, widening to the middle, narrowing slightly just beyond the middle, then widening to the base. It is as wide at the base as the base of the hardened wing covers (elytra). It is slightly inflated on top. The angles at the rear corners of the pronotum are very sharp and point outward. The pronotum is yellow with a pair of black longitudinal stripes in the middle, and a small black spot on each side near the middle of each line. The spot may be small and indistinct or large and connected to the stripe.

The elytra are long and narrow, about 3 times as long as wide, and yellow with black markings. They taper evenly from the broad base to the narrow tip, making the body appear broad-shouldered. There are three pairs of large black spots that extend to the outer margin and often coalesce at the inner margin creating a bar across both elytra. The front margin has a broad black border, the inner margin (suture) has a narrow black border, and the outer margin sometimes has a narrow black border.

The legs are slender and mostly yellow. The fourth segment (tibia) of each leg has a spur at the tip. On both sexes the third segment (femur) of the hind leg is black at the tip. The last part of each leg (tarsus), corresponding to the foot, has five segments but the fourth segment is minute and is concealed within the lobes of the heart-shaped third segment, making it appear that there are only four segments. On the hind leg, the tarsi are slender. The first segment is as long as all of the remaining segments together. The third segment is split beyond the middle.




to 916 (9.0 to 14.0 mm)


Similar Species


Deciduous forests




May to July






Life Cycle




Larva Food


Dead and decaying wood of various shrubs and hardwood trees, including viburnum, grape, beech, and elm.


Adult Food


Flower nectar and possibly also pollen of a variety of flowers, especially sumac.


Distribution Map



24, 27, 29, 30, 82, 83.







Coleoptera (beetles)  


Polyphaga (water, rove, scarab, long-horned, leaf, and snout beetles)  




Chrysomeloidea (leaf beetles and allies)  


Cerambycidae (longhorn beetles)  


Lepturinae (flower longhorn beetles)  







Strangalia carolinae

Strangalia eversa


Common Names


pale-horned long-horned beetle

yellow-horned flower longhorn beetle










The hardened or leathery forewings of beetles used to protect the fragile hindwings, which are used for flying. Singular: elytron.



On insects and arachnids, the third, largest, most robust segment of the leg, coming immediately before the tibia. On humans, the thigh bone.



The exoskeletal plate on the upper side of the first segment of the thorax of an insect.



On plants: An erect, leafless stalk growing from the rootstock and supporting a flower or a flower cluster. On insects: The basal segment of the antenna.



On insects, the last two to five subdivisions of the leg, attached to the tibia; the foot. On spiders, the last segment of the leg. Plural: tarsi.



The fourth segment of an insect leg, after the femur and before the tarsus (foot).





Visitor Photos

Share your photo of this insect.

  This button not working for you?
Simply email us at
Attach one or more photos and, if you like, a caption.

Mike Poeppe

    yellow-horned flower longhorn beetle      








Visitor Videos

Share your video of this insect.

  This button not working for you?
Simply email us at
Attach a video, a YouTube link, or a cloud storage link.


Other Videos
  Flower longhorn beetles on pasture rose, Wyandot County, Ohio USA
Robert Klips

Jun 26, 2009

Two species of flower longhorn beetles (Coleoptera; Cerambicidae) occur on a pasture rose (Rosa carolina) flower in Wyandot County, Ohio. The larger one is Typocerus velutinus; the smaller is Strangalia luteicornis.




Visitor Sightings

Report a sighting of this insect.

  This button not working for you?
Simply email us at
Be sure to include a location.
  Mike Poeppe

Location: Houston, MN

yellow-horned flower longhorn beetle  






Created: 8/19/2022

Last Updated:

About Us | Privacy Policy | Contact Us | © All rights reserved.