68 Journal New York Entomological Society. [VoL xi. 



Note. — Prof. T. D. A. Cockerellhas kindly compared this species 

 with his A. coniferanini and also sent me a slide of his species. After 

 carefully comparing them, and reading his description in Psyche, I 

 find the following marked differences : my species is much smaller 

 and the single pair of lobes are narrower and shorter than in A. coni- 

 ferarum. I am unable to find in my specimens the second and third 

 pair of lobes which are described for the above species, and as they 

 are also from different hosts, I propose it as a variety. 



Type specimens in the entomological collection of Stanford Uni- 

 versity. 

 Aspidiotus (subg. Diaspidiotus) ehrhorni, sp. nov. 



Scale of Female. — Nearly circular, very slightly convex; dark gray, with light 

 yellow exuvise at apex ; diameter about 2 mm. ; covered with minute granules and 

 resembling the lichens under which it is found. Underneath this outer scale is a dark 

 reddish-brown skin enclosing the insect ; ventral scale very thin, transparent and 

 white. 



Adult Female. — Length .9 mm., width .7 mm.; color light yellow; outline of 

 body subovate. Characters of abdominal margin as follows (Plate VI, Fig. 14) : 

 there are five groups of spinnerets, anterior group of two, anterior-laterals of five to 

 nine, posterior-laterals of three to seven ; a single pair of large lobes, each rounded, 

 with slight lateral notch on the outer side ; between the lobes there is a gland orifice, 

 with a slightly serrated margin ; just laterad of each lobe there is a large incision into 

 which a gland opens, and around the margin of which are two or three conical and 

 sometimes serrated plates ; a second large incision and gland orifice, with one or two 

 small conical plates, a short distance from the first incision ; a third very slight inci- 

 sion, about an equal distance laterad of this second one ; spines as follows : a dorsal 

 and ventral pair of short, stout ones just laterad of each lobe, a pair of longer ones 

 between the first and second incision, a pair of about the same size, between second 

 and third incision, a pair of smaller ones at some distance above these. 



Scale of Male. — The scale of the male is oblong, about l mm. in length ; dark 

 gray, with bright red exuviae at one end. 



Very near to A. ancylus Putnam, but smaller and with a smaller number of spines 

 on the abdominal margin, also with an additional incision. 



Habitat. — Discovered by Mr. Edward M. Ehrhorn, concealed 

 among and underneath the lichens on the bark of Abies concolor, near 

 Sissons, Mt. Shasta, Siskiyou Co., Cal., Sept, 4, 1901. Also on the 

 bark of Libocednis decurrens at the same locality. 



Type specimen in the entomological collection of Stanford Uni- 

 versity. 

 Leucaspis kelloggi, sp. nov. 



Scale of Female (Plate VI, Fig. 15). — Length 3 mm (larval skin .4 mm., 

 second skin .6 mm., scale 2 mm.); width l mm., straight, very convex about the 



