Coxa 



length 

 h.s. 



Trochanter 



length 

 h.s. 



Femur 



length 

 h.s. 



Tibia 



length 

 h.s. 



Tarsus 



length 

 h.s. 



Claw 



length 



Total length of leg 



182 MORPHOLOGY AND TAXONOMY OF ADULT MALES 



digitules apically knobbed, 31-37 (34) (J. long. Claw broad at base, abruptly tapering towards 

 a sharply pointed tip ; ungual digitules apically knobbed. In the following table the lengths 

 of the leg segments (in microns) and the number of setae on each are given : 



Fore leg Middle leg Hind leg 



37-43 (39) 37-43 (39) 40-46 (42) 



6-10 (7-6) 6-11 (8-i) 7-11 (9-2) 



61-70 (64) 64-70 (67) 70-76 (73) 



2-4 (2-8) 2-4 (3-0) 2-5 (3-4) 



174-189 (183) I53-I7 1 ( l6 5) 174-186 (180) 

 11-18 (14-6) 10-16 (12-8) 11-16 (136) 



226-253 (238) 232-259 (244) 250-293 (272) 

 29-38 (33-2) 30-42 (36-1) 32-46 (38-4) 

 82-92 (85) 85-95 (89) 89-101 (95) 



17-23 (19-2) 16-23 (19-6) 18-25 (21-2) 



18-24 (2l) 18-24 (2l) 18-24 (2l) 



613-659 (631) 607-656 (625) 659-720 (683) 



Abdomen : 342-471 (4io)u. long and 296-334 (3i9)(x wide. Tergites of segment I small ; 

 that of segment VIII large. Sternites of segment VIII ill-defined. Ostioles absent. 

 Abdominal setae on each side : Dorsal setae 3-4 on segments I to V, 2-3 on segments VI and 

 VII, and one slightly longer seta on segment VIII. Pleural setae 2-3 on segment I, 3-4 on 

 segments II to VII, and 3 on segment VIII, including a slightly longer seta. Ventral setae 

 1-2 on segments II and III, 2—3 on segments IV to VII, and 2 on segment VIII. 



Setae of glandular pouch include a pair of 1 16-140 (128) u. long tail setae, the ratio their length 

 to the total body length being 1 : 7-7-10-3 (8-8). 



Genital segment : Genital capsule moderately large, 128-143 (134) \i long and 85-95 (89) ji. 

 wide, i.e. the ratio 1-4-1-6 (1-5) : 1, and the ratio its length to the total length of body 1 : 7-8- 

 8-9 (8-4). Style rather straight in lateral view, apically pointed. Anal opening about i2(x in 

 diameter. Aedeagus tubular, with a short, strongly sclerotized basal rod. Setae of genital 

 segment : Dorsally 2 long setae present on each side of the style near its base ; ventrally, 4-6 

 (5-1) smaller setae occur on each side of the genital capsule. 



Material : 10 specimens examined, obtained from the following two lots, both 

 of which completely agreed with each other : (A) 5 specimens collected by 

 K. Boratynski, on Agave decipiens, in Kew Gardens, England, 27. vi. 1957. (B) 5 

 specimens collected by myself, on Agave franzosinii, also in Kew Gardens, England, 

 during the last two weeks of June, 1964. 



This species was also recorded by Dr. Boratynski on Agave parryi. 



GOSSYPARIA Signoret, 1875 

 Gossyparia spuria (Mod.) 

 (Text-figs. 47-49) 

 Macropterous and brachypterous forms of this species were available for study. 

 (A) The macropterous form (Text-figs. 47 and 48) 



The males moderately robust, comparatively large, with short antennae and short legs. 



