126 
PRELIMINARY LIST 
Dactylopius solani Cockerell. Det, Cockerell. 
Fort) Collins, August 23d on roots of Solanum rostratum 
(Baker). Questionably this species on the crowns of sugar 
beet roots at Grand Junction, August 26th (Gillette). 
Kermes galliformis Riley. Det. Cockerell. 
Manitou, November 27th on Quercus undulata (Gillette). 
Kermes gillettei Cockerell. 
"Scale of female 8 mm. long, 7.5 broad, 7 high. Distinctly segmented; dorsum with 
rounded tuberosities, not very shiny. Scale covered with minute dark brown specks. 
General color ivory-white and dark brown mottled, the extent of the white or the brown 
variable, but usually a distinct white dorsal band, and more or less broken-up subdorsal 
ones. Derm by transmitted light reddish brown, with large oval gland-pits. Young larva 
very elongate, subfusiform. with the greatest breadth anterior to the middle; pale 
purplish pink. Caudal tubercles large and broad, each presenting two stout bristles, of 
which the inner (mesad) one is much the shortest. There is also a moderately long bristle 
on the outer side of each tubercle, near its base. Segmentation distinct; each segment 
with a short spine or bristle on lateral margin. Antennae cylindrical, hardly at all 
tapering, 6-.jointed; 3 and 6 equal and longest; 4 and 5 equal and shortest, these being 
about as long as broad; 2 very little longer than 4. and very much shorter than 3; x almost 
as long as 4 plus 5. Last joint rounded at the tip, bearing several hairs. Antennae color¬ 
less. Rostral loop extending beyond base of third pair of legs. Mentum at least two- 
jointed. Legs quite ordinary. Claws long, sharp, and a little curved. Tibia short. 
Hab. Manitou, Colorado, U. S. A., on twigs of Quercus undulata. Collected by Prof. 
C. P. Gillette. Very distinct from Iv. galliformis, Riley, the only Kermes hitherto 
described from North America. Its nearest ally is evidently Kermes gibbosus, Signoret, 
which was found on oaks near Vienna. 
The larvae described above were found inside the scale of the female.” 
We copy the above from a separate of Mr. Cockerell’s 
paper in “ The Entomologist,” which bears no date. The 
practice of publishing original descriptions of single 
American species in foreign journals which are to a large 
extent inaccessible to American entomologists, cannot lie 
too strongly condemned. 
Physokermes coloradeusis Cockerell. 
Female scale with the same general shape as P. abietis and attached in the same 
way to the twigs. Diameter 7 mm., smooth, shiney, rather pale brown, inflated, subreni- 
form, with a median constriction. Derm yellowish brown, reticulate, the reticulations 
hexagonal. Large gland-pits looking like perforations. Mouthparts small, rostral loop 
short. Legs not to be found, apparently absent in the adult. Antennae small, six- 
jointed, but the joints obscure. Last joint with several hairs. Joints subequal, except 
the second and fifth, which are shorter; the second shortest, bearing a long hair; fourth 
perhaps a very little longer than third, and longest; fifth constricted, simulating second 
joints, the second of them shortest. 
Habitat Manitou, Colorado, November 26tli, 1894, on Pinus edulis. Collected by Prof. 
C. P. Gillette. It is attacked by a brownish Chalcidid parasite. 
1 10 m European P. abietis it is distinguished by its size and by the antennae. No 
species of the genus lias hitherto been found in America.” 
This species was described in “The Entomologist” with 
the preceding species. A spruce should have been given as 
