Blister beetles

Also called oil beetles, the adults produce cantharidin, an oily fluid to deter predators that can blister human skin. Most species arc soft, leathery, and black or brown with red or yellow marks. Some arc metallic. Most arc long and parallel-sided; a few are oval. The elytra vary in length.

• LlFF CYCLF Fggs are laid in soil. The mobile, first-stage larvae locate and cat the eggs of grasshoppers or bees. Adults arc herbivorous.

• Occurrence

Worldwide, except in New Zealand, mainly in warm, dry areas. On flowers and foliage. —• distinct

• Remark Some species ,mk are crop pests. ('antharidin from l.ytta vesica tori a is used to treat urogenital disorders.

LARVAE become increasingly grublike with each molt.

AMYIAHKIS spec :ies are all brightly colored and secrete toxic or blistering fluids from their leg joints. Some species are serious pests of millet crops in West Africa.

/J 77/1 VKSHATORIA, the Spanish Ely, is a bright, iridescent green and produces a mouselike odor. Its larvae develop in the nests of solitary bees.

AMYIAHKIS spec :ies are all brightly colored and secrete toxic or blistering fluids from their leg joints. Some species are serious pests of millet crops in West Africa.

/J 77/1 VKSHATORIA, the Spanish Ely, is a bright, iridescent green and produces a mouselike odor. Its larvae develop in the nests of solitary bees.

square or narrow pronotum head points downward

square or narrow pronotum head points downward m T I LLS • 125

0rder COLKOPTKRA

Family MORDKLLIDAK

No. of species j i^qq

Tumbling flowkr bee'

1 liesc beetles, named after their habit of tumbling when disturbed, are typically humped or arched in profile but quite flat from side to side. The end of the abdomen is spinelike. Most species are brown or black with patterns of short white, red, or yellowish hairs or scales.

• IAFE <lYC :LE Eggs are laid singly in dead wood or plants. The larvae develop mostly in decaying wood or mine plant stems. Adults cat nectar.

• OCCl IRKENCE Worldwide, mainly in tropical regions. Adults gather on flowers and dead wood in the sun.

<i A Mokdi 11.1 ocron \cr\i \ has bright orange spots on its elytra and a patterned pronotum.

¡pine/ike abdomen projects beyond elytra distinctive "neck'

stout thorax stout thorax

SlDIi

SlDIi

<i A Mokdi 11.1 ocron \cr\i \ has bright orange spots on its elytra and a patterned pronotum.

¡pine/ike abdomen projects beyond elytra distinctive "neck'

I .ARVAK lire cylindrical and elongate, with a round head and short legs.

has the parallel-sided to slightly tapering shape that is characteristic of this family.

line of yellow hairs at rear edge o f thorax two irregular S yellow bands on elytra line of yellow hairs at rear edge o f thorax two irregular S yellow bands on elytra

Larval feeding habits 0 ^

0rder COLKOPTKRA

Family Ni l IDLLIDAK

No. of species ^ qqq

Pollen beetles

Also known as sap beetles, these small beetles are mostly oval, square, or rectangular, and arc often convex in profile. Most arc brown or black and can have irregular red or yellow spots. In some species the elytra arc shortened, exposing the last couple of abdominal segments.

• IJ EE CYCLE Eggs are laid around feeding sites. Adults and larvae feed on sap, nectar, and pollen, but a few prey on scale insects, and some larvae develop inside seed pods.

• OCCl IKKENCE Worldwide. On flowers, sap flows, and decaying plant and animal material; a few species live in ant and bee colonics.

LARVAL are long, slender, slightly curved, and white.

EWRAFA spk< :iks arc-mostly pale or red-brown and slightly flat, with clubbed antennae and dark eves.

short antennae usually have / / segments •

Family Ni l IDLLIDAK

No. of species ^ qqq short antennae usually have / / segments •

A Ml I.ICI Till S TIANll SCI77 S is a European native. Roth the adults and larvae feed on buds and flowers.

« small, t eclangulat, brown body

A Ml I.ICI Till S TIANll SCI77 S is a European native. Roth the adults and larvae feed on buds and flowers.

« small, t eclangulat, brown body

0 0

Post a comment