388 Mr. A. Hempel on some 
Adult male light yellow in colour; head, eyes, wings, and 
antenne as in the female. Body narrow, 2°21 millim. long. 
Extent of wings 4°93 millim. Genitalia large, -4380 millim. - 
long, forcipate, tips strongly curved. Penis fine, tip curved 
upward, *190 millim. long. 
Eggs sinall, elongate, slightly curved, light yellowish, with 
a short peduncle ; usually laid in an irregular mass and 
covered with a fine white powder. The eggs hatch in from 
11 to 13 days. The larva stage lasts from 44-46 days, and 
the pupa stage from 15-16 days. 
Hab. Campinas, State of S. Paulo, on the underside of 
leaves of a cultivated guava (Psidium cattleianum). The 
entire under surface of the leaves becomes coated with a fine 
white powder, while the upper surface is usually covered with 
a black fungus. 
Coccide. 
Genus DAcTYLopius, Costa. 
Dactylopius subterraneus, sp. n. 
Female, gall-producing, on roots of cultivated grapes. 
Galls irregularly globose, 83-5 millim. in diameter, forming a 
mass encircling the entire root. The interior is smooth and 
lined with a white powder. 
Female, probably immature, oval-convex, length of prepared 
specimen 2°52 millim.; width 1°50 millim. Antenne of eight 
joints, all bearing hairs; joint 8 the longest. Length of antenna 
about ‘380 millim. Length of joints in w: (1) 56, (2) 42, 
(3) 56, (4) 31, (5) 31, (6) 85-38, (7) 38, (8) 84-91. Approxi- 
mateformula: 8 (13) 2(76)45. Twosmall conicaleyes present. 
Rostrum large, situated between the first pair of legs. Rostral 
loop extending halfway between the second and third pair of 
legs. Legs long. Length of joints of first pair of legs in w: 
coxa 91, femur and trochanter 245, tibia 140, tarsus and 
claw 91. Claw small, well curved; both pair of digitules 
small, with slightly expanded ends. Anal ring with six hairs. 
Anal tubercles inconspicuous, each ending in one seta. On 
the dorso-lateral surface of the body, including the anal 
tubercles, there is a series of 34 groups of spines; each group 
consisting of two thick sharp spines, with tuberculate bases, 
around which are clustered 6-8 round glands. The abdominal 
segments are distinct. ‘The last 4-5 segments bear on the 
ventral surface many large round glands, while the dorsal 
derm bears many small tubular glands. 
Hab. lia Plata, Argentine Republic, on the roots of 
