Tingidae

Tingidae; Temporal range: Early Cretaceous–Present PreꞒ Ꞓ O S D C P T J K Pg N
	Tanybyrsa cumberi
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hemiptera
Suborder:	Heteroptera
Infraorder:	Cimicomorpha
Superfamily:	Miroidea
Family:	Tingidae; Laporte, 1832
Subfamilies
	†Tingiometrinae Heiss, Golub, & Popov, 2015; Cantacaderinae Stål, 1873; Tinginae Laporte, 1832; Vianaidinae Kormilev, 1955;

The Tingidae are a family of very small (2–10 mm (0.08–0.39 in)) insects in the order Hemiptera that are commonly referred to as lace bugs. This group is distributed worldwide with about 2,000 described species.

They are called lace bugs because the pronotum and fore wings of the adult have a delicate and intricate network of divided areas that resemble lace. Their body appearance is flattened dorsoventrally and they can be broadly oval or slender. Often, the head is concealed under the hood-like pronotum.

Lace bugs are usually host-specific and can be very destructive to plants. Most feed on the undersides of leaves by piercing the epidermis and sucking the sap. The then empty cells give the leaves a bronzed or silvery appearance. Each individual usually completes its entire lifecycle on the same plant, if not the same part of the plant. Most species have one to two generations per year, but some species have multiple generations. Most overwinter as adults, but some species overwinter as eggs or nymphs. This group has incomplete metamorphosis in that the immature stages resemble the adults, except that the immatures are smaller and do not have wings. However, wing pads appear in the second and third instars and increase in size as the nymph matures. Depending on the species, lace bugs have four or five instars. Lace bugs sometimes fall out of trees, land on people, and bite, which, although painful, is a minor nuisance. No medical treatment is necessary.^[1] There are reports in Europe, e.g., Italy,^[2] France^[3] and Romania,^[4] of Corythucha ciliata biting humans and some people have painful reactions, e.g., dermatosis.

Phylogeny

The phylogenetic relationships of the Miroidea are not well established, with various authors treating the families, and subfamilies, and tribes differently.^[5] The phylogeny here follows that of Drake and Ruhoff 1965.^[6] Members have been found in the fossil record from the Early Cretaceous onwards, with the oldest being Sinaldocader from the Early Cretaceous Zaza Formation of Buryatia, Russia.^[7]^[8]

Gallery

Physatocheila smreczynskii
Adult specimen of a small (about 2 mm) species of lace bug on Lavandula near Cape Town in South Africa: Left, dorsal view; right, lateral view, showing proboscis and dorsal protuberances
Gargaphia from Oklahoma
from Maryland
Lace bug - Pennsylvania