108 INSECTS NOXIOUS TO AGEICULTUEE. 



covered with thin meal ; during* gestation stationary, enclosed in 

 a thick mass of white cotton. Antennae of eleven joints, taper- 

 ing to the tip ; the joints all nearly equal, and bearing several 

 hairs. Feet black, short, strong ; all the pairs placed somewhat 

 forward ; digitules absent, a short seta at the base of the claw ; 

 on the inner edge of the tibia and tarsus a fringe of strong 

 hairs ; on the trochanter a long hair. Rostrum and mentum 

 absent ; mouth represented by a minute orifice between the 

 second pair of feet. Eyes very minute, tubercular, projecting, 

 placed behind the antennae. Anal tubercles absent ; anogenital 

 opening small, elliptical, simple, hairless. Body flattish beneath, 

 more convex above ; segments distinct, generally smooth, some- 

 times bearing hard projecting callosities. Skin covered with 

 minute hairs interspersed with circular spinnerets. 



Female of second stage deep-red in colour, nearly globular, 

 very indistinctly segmented ; stationary, enclosed in a thick, 

 hard solid test of yellow wax ; tests attaining sometimes the 

 size of a large pea ; enclosed insect averaging Jin. in length. 

 Insect filling the test ; skin smooth, very thin ; general appear- 

 ance like a hard, round, smooth ball. Anal tubercles absent ; 

 anogenital ring small, simple, hairless : from this ring springs 

 often a tuft of short white cotton, and a long white cottony 

 seta protruding through an orifice in the test. Rostrum and 

 mentum present, very small ; mentum tri articulate, with a few 

 hairs at the tip. Antennae very short, of eight joints, conical, 

 tapering to the tip, hairy. Feet atrophied, bloated-looking, 

 apparently only consisting of a very short femur, tibia, and tarsus ; 

 digitules two, very small. Skin covered with a great number 

 of circular spinnerets of two sizes, the larger ones simple, the 

 smaller multilocular. Tracheae very large ; spiracular orifices 

 containing brown tubes with beaded extremities on the inner 

 end. Anal extremity dark-brown, the anal ring in the centre ; 

 spinnerets here very numerous, converging towards the anus. 

 Insect in this stage emitting a strong, persistent, and fetid 

 odour. 



Young larva brick -red, elongated, active, naked ; length, 

 about ^jin. Antennae of six joints, hairy ; last joint the largest, 

 clavate. Eyes and feet as in adult, but there is no fringe on the 

 tibia and tarsus. Rostrum and mentum large, conspicuous. 

 Skin covered with circular spinnerets and minute hairs; the 

 spinnerets are most numerous on the abdomen. Anogenital 



