202 Journal New York Entomological Society. [Voi.iv. 
# 
longitudinal series of wart-like white prominences. Viviparous (ovoviviparous), the 
young leaving the egg before being excluded from the body of the parent. 
Legs and antennae dark brown, the distal margins of the antennal joints broadly 
pallid. Antennae n-jointed, slender, joints I, 2 and II subequal in length and 
longest, the others subequal and shorter, 3 about as long as broad; 4 and 5 shorter 
than 3 and broader than long, 5 shortest; 6 to 10 longer than broad. 3 may be as 
long as 2. Femur rather stout. Tibia longer than femur. Tarsus curved, about 
half as long as tibia. Claw pallid, broad, narrowing to a point. Mouth parts small. 
Larva at period of hatching I mm. long, bright red, sparsely powdered with white 
meal, legs and antennae black. Antennae 6-jointed, 6 much longest; formula 6(2i)« 
3(54). End of body with 6 long hairs on each side, of which the first three and last 
are about equal, and the other two very much longer. The two especially long ones 
are very close together. 
Habitat: Mescalero Reservation, a short distance below the 
Agency, at base of stems of Gutierrezia sarothrce, October 2. Orthezia 
nigrocincta Ckll., occurred in numbers on the same plants. On July 
26, 1892, Prof. Townsend found a single specimen of Icerya on Gutier¬ 
rezia microcephala about 10 miles south of Navajo Springs, Arizona. I 
did not see the specimen which was sent to Dr. Riley, but it was very 
possibly 7 . townsendi. 
A tew weeks ago Prof. Townsend discovered at Mesilla an Icerya 
on stems of Pluchea borealis, while collecting Phenacoccus helianthi, 
which abounds on the same plant. This is larger than 7 . townsendi 
(long. 6.5, lat. 5.5, alt. 5 mm.), dark purplish grey, speckled with 
white secretion, with very distinct longitudinal rows of yellow-white 
mealy protuberances. These wart-like protuberances number about 8 
in the dorsal row; the sublateral row is anteriorly single, of three, then 
giving way to two rows, of about 6 each. There is also a lateral row of 
about 9. The legs and antennae resemble those of tozvnsendi. On 
breaking open the body, I found a quantity of orange-yellow fluid, in 
which the larvae had not yet reached the hatching stage, and so could 
not be compared with those of townsendi. This Icerya on Pluchea I 
propose to call I. townsendi var. pluchece, as its characters scarcely war¬ 
rant us in regarding it as a distant species. 7 . townsendi is closely 
allied to 7. rosce ; and especially, it would seem, to 7 . australis, which 
Masked regards as a variety of roses. 
It may be remarked here that Icerya ( Proticerya ) rileyi Ckll., 
was found in abundance on mesquite a few miles south of 1 ularosa; a 
new locality. 
Dactylopius dasylirii, sp. nov. 
9 . Length 4 mm. or slightly less, dark olivaceous, covered with white meal. 
