Termitidae

Latreille, 1802

Higher Termites

Subfamily Guides

Amitermitinae(Amitermes-group Termites)
Apicotermitinae(Typical Soldierless Termites and Allies)
Nasutitermitinae(Nasute Termites)

is the largest of , containing over 2,100 described and representing the most evolutionarily specialized termite group. Members lack the flagellated protozoan found in lower termites, instead relying on bacterial and archaeal gut symbionts for digestion. This family exhibits exceptional dietary diversity, with approximately 60% of species being soil-feeders and others consuming wood, grass, leaf litter, fungi, lichen, and humus. Termitidae encompasses multiple including Macrotermitinae (fungus-growing termites), Nasutitermitinae (nasute termites with defensive frontal projections), and numerous soil-feeding lineages.

Apicotermitinae by (c) Harsha Jayaramaiah, some rights reserved (CC BY), uploaded by Harsha Jayaramaiah. Used under a CC-BY license.

Tenuirostritermes cinereus by (c) Michelle W. （鍾偉瑋）, some rights reserved (CC BY), uploaded by Michelle W. （鍾偉瑋）. Used under a CC-BY license.

Tenuirostritermes by no rights reserved, uploaded by Philipp Hoenle. Used under a CC0 license.

Pronunciation

How to pronounce Termitidae: /tɛrˈmɪtɪˌdeɪ/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Distinguished from lower (, Kalotermitidae, etc.) by the absence of flagellated protozoan in the , replaced by bacterial and archaeal symbionts. The saddled pronotum and protruding postclypeus are diagnostic morphological features. Within Blattodea, separated from by eusocial colony structure and specialized systems. can often be distinguished by soldier : Nasutitermitinae have a pointed nasus; Macrotermitinae typically have robust soldiers; soil-feeding subfamilies often exhibit simplified or reduced soldier armament.

Images

Habitat

Occupies diverse terrestrial from tropical rainforests to savannas and arid zones. Many construct epigeal mounds; others are arboreal, subterranean, or inhabit wood. Some lineages are specialized for extreme environments, such as Globitermes sulphureus in hot Southeast Asian savannas with multi-layered mound architecture for water retention. Soil-feeding species are particularly abundant in tropical with weathered soils.

Distribution

in tropical and subtropical regions worldwide. Native ranges span Central and South America, Africa, Asia, and Australia. Some have become outside native ranges, including Nasutitermes corniger in southern Florida (though efforts have been successful).

Seasonality

Swarming () typically occurs during or after heavy rains, often synchronized across colonies. In tropical regions, this may occur during specific wet season periods; in seasonal climates, is concentrated in spring or early summer.

Diet

Highly diverse compared to lower . Approximately 60% of are obligate soil-feeders, consuming humus and organic matter in soil. Other species feed on wood, grass, leaf litter, fungi, lichen, , or combinations thereof. Macrotermitinae cultivate fungal gardens on predigested plant material. Unlike lower termites, no species relies on flagellated protozoans for cellulose digestion.

Life Cycle

Colony foundation typically follows swarming , with dealates shedding wings and establishing nests. Some exhibit (AQS), where founding queens produce secondary neotenic reproductives parthenogenetically while producing sterile and sexually. Colony growth leads to increased behavioral complexity and caste differentiation. Mature colonies may contain millions of individuals with elaborate physical structures.

Behavior

Exhibits age in many , with older assuming riskier tasks such as foraging outside the central nest while younger workers tend . Colony-level construction include individual transportation of soil particles or coordinated 'bucket-brigade' kicking behaviors in some lineages. Trail-following and chemical communication mediate foraging organization. Some species construct elaborate mounds with specialized architectural features for microclimate regulation.

Ecological Role

decomposers in tropical and subtropical , particularly through soil-feeding and humus processing. Fungus-growing (Macrotermitinae) enhance nutrient cycling by cultivating Termitomyces fungi. Nest construction alters soil structure and chemistry, creating hotspots. Serve as food sources for numerous vertebrate and . Some arboreal contribute to forest structural dynamics through nest construction in .

Human Relevance

Several are significant structural and agricultural pests, including Nasutitermes corniger, which damages crops, timber, and buildings. require monitoring and control efforts. Some Macrotermitinae are consumed as food ( and their fungal combs) in parts of Africa and Asia. Mound architecture has inspired passive cooling designs in human buildings. Soil-feeding termites contribute to soil in agricultural systems, though their effects are context-dependent.

Similar Taxa

RhinotermitidaeLower with flagellated protozoan gut ; lack the bacterial/archaeal and specialized compartmentalization of . Typically more restricted to woody substrates.
KalotermitidaeDrywood lower with simple gut and flagellated ; do not construct soil connections and have different wing venation.

More Details

Evolutionary significance

represents a major evolutionary radiation following the loss of protozoan , enabling exploitation of diverse feeding unavailable to lower . The demonstrates of soil-feeding across multiple and sophisticated social organization including age and complex nest architecture.

Subfamily diversity

Contains at least 15 recognized including Macrotermitinae (fungus-growers), Nasutitermitinae ( soldiers with chemical defense), Syntermitinae, Apicotermitinae, and numerous soil-feeding lineages (Cubitermitinae, Termitinae, etc.). Recent taxonomic revisions have added several new subfamilies based on molecular .