Coccus trichodes Anderson

Williams, D. J., 2002, Scale insects (Hemiptera: Coccoidea) described by James Anderson M. D. of Madras, Journal of Natural History 36 (2), pp. 237-246: 244

publication ID 10.1080/00222930010023475

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Coccus trichodes Anderson


Coccus trichodes Anderson  

Coccus trichodes Anderson, 1787e: 4   ; 1787g: 2; 1788a: 4; 1788b: 20, 25; Signoret, 1877: 625; Fernald, 1903: 327.

In letter No. 3, Anderson (1787a: 5) referred to a`viviparous insect covered with white Farina on the Robinia Grandi X   ora, or Agaty Jumbo of the Tamuls on the Psidium Guajava   and Hibiscus Rosa Sinensis   with a nipple between the two foremost pair of legs, a drawing of which is enclosed No. 8’. In the later version of this letter, Anderson (1788b: 3) again referred to ®gure 8 but only to the species on Robinia mitis   (presumably altered from R. grandi   X ora) and on H. rosa sinensis   . He referred to a diOEerent insect on Psidium guajava   and Hibiscus rosa sinensis   . After placing branches of the guava tree on Opuntia   plants, the guava insects multiplied on the cactus so that the leaves were entirely covered with a white hairy scurf. Anderson’s ®gure 9 refers to this insect and his ®gure 10, the ¯y, is a fairly good representation of an adult male mealybug and is accompanied by a description discussing two very remarkable hairs being perfectly opaque and white and only a little longer than the ¯y. He described ®gure 11 as a caterpillar but this is probably a chrysopid larva.

The name Coccus trichodes   , or guava Coccus   , ®rst appeared in the 11th letter ( Anderson, 1787e). Host plants listed are Psidium Guajava   , Annona Squamosa   , Solanum Lycopersicum   , Hibiscus Rosa Sinensis and Phasioli   [5 Phasiolus   ].

There is no doubt that the name Coccus trichodes   is valid and that it refers to a mealybug of the family Pseudococcidae   . Although the species is probably Maconellicoccus hirsutus (Green)   , there is no positive evidence of its correct identity and it should be left under its original name.














Coccus trichodes Anderson

Williams, D. J. 2002

Coccus trichodes

FERNALD, M. E. 1903: 327
SIGNORET, V. 1877: 625
ANDERSON, J. 1788: 4
ANDERSON, J. 1788: 20
ANDERSON, J. 1787: 4
ANDERSON, J. 1787: 2