File:Alydidae at Mechode Padur.jpg

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English: Broad-headed bugs are up to 10–12 millimetres (0.4–0.5 in) long, and have slender bodies. Some have long and very thin legs. The most notable characteristics of the family are that the head is broad, often similar in length and width to the pronotum and the scutellum, and that the last antennal segments are elongated and curved. The compound eyes are globular and protruding, and they also have ocelli. The femora of the hindlegs bear several strong spines; the tarsus has three segments. Most species have well-developed hemelytra (forewings), allowing them to fly well, but in some the hemelytra are vestigial. The membranous part of the hemelytra have several closely spaced long veins.

Alydidae are generally of dusky or blackish coloration. The upperside of the abdomen is usually bright orange-red. this color patch is normally not visible as it is covered by the wings; it can be exposed, perhaps to warn would-be predators of these animals' noxiousness: They frequently have scent glands that produce a stink considered to be worse than that of true stink bugs (Pentatomidae). The stink is said to smell similar to a bad case of halitosis. The nymphs and adults, which sometimes have reduced wings, of some species such as Dulichius inflatus and Hyalymenus spp. are ant mimics and live in ant nests

Scientific classification Kingdom: Animalia Phylum: Arthropoda Class: Insecta Order: Hemiptera Suborder: Heteroptera Infraorder: Pentatomomorpha Superfamily: Coreoidea Family: Alydidae

Amyot & Serville, 1843
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