132 THE ENTOMOLOGIST. 



simple spines at very long intervals. Antennae broken in the speci- 

 mens studied. 



Hab. Amecameca, Mexico, June 7th, 1897, on Celtis occi- 

 dentalis (?), infesting the twigs (A. Koebele, No. 1758). Sent by 

 Dr. L. 0. Howard ; Div. Ent. No. 7923. L. subaastrale is not 

 related to any species known from the same region, but resembles 

 several European forms — L. elongatum, genistre, berberidis, 

 and mori. 



Lecanium (Toumeyella) tubuliferum, n. sp. 



? . Scale 5J mm. long, 4J broad, 4 high, when dried ; but evi- 

 dently larger when fresh, as it is distorted and shrunken from drying. 

 Four dorsal longitudinal rows of pits, and many small pits at the 

 sides. Colour light brown, rufescent towards the margin. Surface 

 with a thin, inconspicuous, easily deciduous, glassy covering. 



? . Boiled in caustic potash, gives a dark madder-brown colour. 

 After prolonged boiling the skin becomes transparent, suffused with 

 brown, but not chitinous. It is very thickly beset with small tubular 

 glands. There are also some large glandular patches, and in places 

 immense numbers of bulbous glands, looking like knobbed processes. 

 Antennae rudimentary, minute, brown, bristly at tip. Legs absent. 

 Margin, at least in an immature example, with very small spines at 

 rather long intervals. 



Hab. On twigs of Quercus engelmanni, with Kermes grandis, 

 Amecameca, Mexico, May 25th, 1897 {Koebele, No. 1756). Sent 

 by Dr. Howard ; Div. Ent. 7920 (in part). 



Lecanium 2)erconvexum, n. sp. 



? . Scale 3J mm. long, 2J high, 2 wide ; very convex, brown- 

 black, not very shiny ; with minute specks of a lighter colour, and 

 irregular patches of dull white waxy secretion, especially at the sides. 



? . Antennas represented by a short thick bristly protuberance. 

 Legs very short, stout, tapering, with about the form of a carrot, 

 femur and tibia broader than long. Skin chitinous, yellowish brown, 

 with numerous large round and oval gland-pits, and some small glands 

 interspersed. Marginal spines very small, simple. 



$ . Scale very small, scarcely over 1 mm. long, about f mm. 

 broad, pale brownish, shiny, wrinkled, covered with a coating of dull 

 white secretion, which is easily deciduous. 



Hab. On Nectandra, Campinas, Brazil, Dec. 20th, 1897 

 (F. Noack). I sent Dr. Noack a more detailed account to pub- 

 lish in Brazil, but the essential characters are here given for the 

 greater convenience of students. L. perconvexum is related to 

 L. jjunctatum, scrobicidatum, imbricatum, and urichi. 



Mesilla Park, New Mexico, U.S.A. : April 28th, 1898. 



