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 Major Groups | Insecta (insects)

 
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2(1). Mouthparts biting, mandible (M) and maxilla developed for grasping and chewing; forewings (FW) modified to hard elytra meeting along the midline of the body when at rest; hindwings (HW) membranous, when present
Adult forms
 More ››› Coleoptera (beetles)  

 

 
Dytiscidae 

Coleoptera - winged adult

Dytiscidae 

biting mouthparts - ventral view

Dytiscidae 

forewings hard,
hindwings membranous

-Mouthparts piercing, modified for sucking into a conical, segmented rostrum or triangular rostrum with transverse sulcations; forewings (FW) not modified to hard elytra, overlapping the midline of the body when at rest;  hindwing (HW) membranous, when present
(part)  More ››› Hemiptera (bugs)  

 

 
Mesoveliidae 

piercing mouthparts - conical, segmented rostrum
lateral view

Corixidae 

piercing mouthparts - triangular rostrum with transverse sulcations
ventral view

Corixidae 

Hemiptera - winged adult

Corixidae 

forewings not hard