THREE NEW SPECIES OF COCCID.E. lOl 



Kermbs gillettei, sp. nov. 



Scale of female 8 mm. long, 7t broad, 7 liigli. Distinctly 

 segmented ; dorsum with rounded tuberosities, not very shiny. 

 Scale covered with minute dark brown specks. General colour 

 ivory-white and dark brown mottled, the extent of the white or 

 the brown variable, but usuall}^ 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 ; 3 almost as long 

 as 4 + 5. Last joint rounded at the tip, bearing several hairs. 

 Antennae colourless. Eostral loop extending beyond base of 3rd 

 pair of legs. Mentum at least 2-jointed. Legs quite ordinary. 

 Claw long, sharp, and a little curved. Tibia short. 



Hab. Manitou, Colorado, U. S.A., on twigs of Querciis undu- 

 lata. Collected by Prof. C. P. Gillette. Very distinct from 

 A'. gaWformis, Eiley, the only Kcrmes hitherto described from 

 North America. Its nearest ally is evidently Kcrmes gibhosus, 

 Signoret, which was found on oaks near Vienna. 



The larvffi described above were found inside the scale of the 

 female. 



Physokermes coloradensis, sp. nov. 



Female scale with the same general shape as P. abietis, and 

 attached in the same way to the twigs. Diam. 7 mm., smooth, 

 shiny, rather pale brown, inflated, subreniform, with a median 

 constriction. Derm yellowish brown, reticulate, the reticulations 

 hexagonal. Large gland-pits looking like perforations. Mouth- 

 parts small, rostral loop short. Legs not to be found, apparently 

 absent in the adult. Antennae small, 6-jointed, but the joints 

 obscure. Last joint with several hairs. Joints subequal, except 

 2 and 5, which are shorter ; 2 shortest, bearing a long hair ; 

 4 perhaps a very little longer than 3, and longest ; 5 constricted, 

 simulating 2 joints, the second of them shortest. 



Hab. Manitou, Colorado, Nov. 26th, 1894, on Pinus edidis. 

 Collected by Prof. C. P. Gillette. It is attacked by a brownish 

 Chalcidid parasite. 



From the European P. abietis it is distinguished by its size 

 and by the antennae. No species of the genus has hitherto been 

 found in America. 



Las Graces, New Mexico, Dec. 21st, 1894. 



