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Machaerotidae
Machaerota ensifera
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hemiptera
Suborder: Auchenorrhyncha
Superfamily: Cercopoidea
Family: Machaerotidae
Stål, 1866

Machaerotidae are a family of bugs in the superfamily Cercopoidea which were formerly placed within Cercopidae. They are sometimes called tube-forming spittle-bugs as the nymphs form a calcareous tube within which they live. These bugs are mainly found in the Old World tropics. The adults of many genera have a long, free and spine-like process originating from the scutellum and thus superficially similar to the tree-hoppers, Membracidae. The tegmen or forewing, like typical bugs of the suborder Heteroptera, always has a distinct, membranous apical area.

Like other cercopoids, these are xylem-sap feeders. [1] The nymph extracts calcium from the xylem fluid and constructs a calcareous tube from Malphigian gland secretions. [2] They typically feed on woody dicots and immerse themselves in a rather clear fluid excretion inside the tube. The tubes strongly resemble the shells of certain serpulid sea worms or helicoid land snails and contain no less than 75% calcium carbonate. This habit is quite uncommon in the class Insecta and markedly different from that of typical spittlebugs, which make and live in a froth mass. [3] Machaerotids produce foam only when they emerge from the tube to moult. There are about 115 species in 31 genera placed in 4 tribes. The majority of species are found in Southeast Asia with a small number in Africa. They were traditionally separated into two subfamilies; Machaerotinae which have the scutellar spine, and Enderleiniinae which lack it. A third subfamily, also lacking the spine, Apomachaerotinae, was recognized in 2014. The scutellum has a "tail" or appears raised towards the posterior end. [4]

 
Relationships with other groups. [5]

A list of the subfamilies, tribes and genera is as follows: [4]

References

  1. ^ Newby, R. C. (1980). "The Use of Insects for Sampling Xylem Sap". Annals of Botany. 45 (2): 213–215. doi: 10.1093/oxfordjournals.aob.a085814. ISSN  0305-7364. JSTOR  42761313.
  2. ^ Rakitov, Roman A. (2002). "Structure and Function of the Malpighian Tubules, and Related Behaviors in Juvenile Cicadas: Evidence of Homology with Spittlebugs (Hemiptera: Cicadoidea & Cercopoidea)". Zoologischer Anzeiger - A Journal of Comparative Zoology. 241 (2): 117–130. doi: 10.1078/0044-5231-00025.
  3. ^ Maa, T.C. (1963). "A Review of the Machaerotidae (Hemiptera: Cercopoidea)" (PDF). Pacific Insects Monographs. 5: 1–166.
  4. ^ a b Bell, Adam J.; Svenson, Gavin J.; Cryan, Jason R. (2014). "The phylogeny and revised classification of Machaerotidae, the tube-making spittlebugs (Hemiptera: Auchenorrhyncha: Cercopoidea): Phylogeny and classification of Machaerotidae". Systematic Entomology. 39 (3): 474–485. doi: 10.1111/syen.12066.
  5. ^ Cryan, Jason R. (2005). "Molecular phylogeny of Cicadomorpha (Insecta: Hemiptera: Cicadoidea, Cercopoidea and Membracoidea): Adding evidence to the controversy". Systematic Entomology. 30 (4): 563–574. doi: 10.1111/j.1365-3113.2004.00285.x.