106 G. E. BODKIX. 



Pinnaspis buxi, Bouche. Common on a number of ornamental plants and also 

 on garden plants. 



Aspidiotus cydoniae, Comstock. Occasionally occurs on the stem of the egg-plant 

 (Solanum melongena). 



Aspidiotus destructor, Signoret. The commonest and most destructive Coccid in 

 British Guiana. Occurs on a large variety of cultivated and wild plants. Its com- 

 monest cultivated host-plants are the coconut palm, plantains (Musa paradisaica), 

 bananas (Musa sapientium) and avocado pear tree (Per sea gratissima). 



Aspidiotus dijpnis, Newstead. Recorded from British Guiana in 1893 by R. 

 Newstead as a new species. It has not been collected here since. 



Aspidiotus sacchari, Ckll. A common species, usually found on the stem of sugar- 

 cane just beneath the surface of the soil. 



Aspidiotus rapax, Comst. An uncommon species. Up to the present only found 

 on the twigs of the Oronoque tree (Erythrina glauca). Professor Newstead remarked 

 on examining this species. ; ' The ?2 in this colony have remarkably malformed 

 squamae ; I thought it new at first, but am of the opinion that the organs in question 

 are in some way diseased, they are so inconstant." 



Morganella longispina, Morgan. Recorded from British Guiana by A. C. F. 

 Morgan in 1889 ; careful search has failed to reveal its presence since. 



Pseudaonidia fossor, Newst. An uncommon species ; only once collected on the 

 twigs and branches of a large Muscatel grape-vine in Georgetown. 



Selenaspidus articidatus, Morgan. Occurs commonly on all varieties of citrus 

 plants and also on the leaves of Liberian coffee (Coffea liberica). 



Chrysomphalus aonidum, Linn. Not a common species. Occurs on the leaves of 

 citrus plants. 



Chrysomphalus aurantii, Mask. A very occasional species on citrus plants. 

 Chrysomphalus biformis, Ckll. Of frequent occurrence on most orchids, especially 

 Schomburgkia crispa, and also on sisal plants (Agave rigida var. sisalana). 



Chrysomphalus dictyospermi, Morgan. Recorded from British Guiana in 1889 

 by A. C. F. Morgan. It has not been collected since. 



Chrysomphalus dictyospermi pinnulifera, Mask. Recorded from British Guiana 

 in 1892 by Mask ell as occurring on crotons (Codiaeum spp.). Not observed since. 



Chrysomphalus dictyospermi arecae, Newst. Recorded from British Guiana by 

 Newstead in 1893. Not found here since. 



Chrysomphalus personatus, Comstock. A common species. Occurs on leaves of 

 star apple (Chrysophyllum cainito), many ornamental palms, mangoes, and also on 

 the leaves of Para rubber trees (Hevea brasiliensis). 



Chrysomphalus erythraspidis, Newst. A comparatively rare species. Collected 

 once on the twigs of the Oronoque tree (Erythrina glauca). It was found in abundance 

 in this particular instance. 



Lepidosaphes beckii, Newm. One of the most widely distributed and commonest 

 species of Coccids in the Colony. Citrus plants, crotons, Barbados cherry (Malpighia 

 glabra) are a few of its common host-plants. 



