454 iMr. T. 1). A. Cockoicll on 



vi. p. IT)) was fouiulotl on two species — D. coccus, Costn, ;uul 

 J), polonicus. The latter belonged to the ahoady fonnded 

 genus Mai parode^ ) tlie former, which is llie first mentioned, 

 is to be regarded as the, type of the genus. D. coccus is said 

 to be Coccus cacti, L., but instead of being a synonym of that 

 species [Mouophlebus cacti '^), it is the first avaihiblo name 

 lor the conmiercial cochineal. Tiie identity of D. coccus with 

 the cochineal is thoronghly established by the fact that there 

 is a short Latin description coming before the citations of 

 synonymy, while there follows later a full account in Italian. 



'Jlie name '^ JJias/>iotectus^^ or '' JJiaprostocetus,^^ referred 

 by Signoret and Westwood to Costa, was given only in tiie 

 Italian vernacular, as I learn from Mr. Shcrborn. lierlese 

 cites " Diapi'ostechuSf Costa, 1828." Uosta wrote " JJia- 

 prosteciey 



'V\\Q species of Dactylopius (usually referred to Coccus') 

 will be D. coccus, (Josta, JK tomentosus (Lam.), D. coiifusus 

 (Ckll.), and I), confusus Neicsteadi (Ckll.). 



PSEUDOCOCCUS, Westwood, 1839. 



Tiiis name must evidently be used for the genus called 

 iJactylopius by authors. It was based on the common 

 mealy-bug and the cochineal — the latter being, as we have 

 just seen, already provided with a generic name. The species 

 first cited by Westwood is Coccus adoniduniy i^nd it is evident 

 from the context that lie meant the mealy-bug, C. adonidum 

 &c. of GeofFroy (see also Spon's Encycl. vol. i. p. 6i)i), 1882). 

 I have not been able to find where Trccliocoryx, Curtis (cited 

 as a synonym by Berlese), was published, but suppose that it 

 was later than Pseudococcus. 



East Las Vegas, New Mexico, U.S.A., 

 April 9, l'J02. 



Appendix. 

 Some Brazilian Coccidffi. 



The Coccidai listed below were sent to me by Dr. Goldi 

 and Mr. Carlos Moreira and were all collected in the IState of 

 llio de Janeiro. 



Asterolecuniuin hambusa:, Boisd. 



Rio de Janeiro, on cultivated Bamhusa {Goldi, Moreira). 



* See Proc. Acad. Nat. Sci. Tbilad. 1890, p. 261. 



