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60 



SOLIFTJG^E 











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cinerascens, C. Koch. 











i 





\ 



















tibia beset below with numerous papilliform bristles; distal 



+ 



tooth of lower jaw of mandible remote from the 



b 2 . Patella of palp unspined below, its tibia without papilliform 



bristles ; distal tooth of lower jaw much closer to the proximal, toltecus, Poc. 

 b l . Lower jaw of mandible with one large proximal tooth and one or 



two small teeth in front of it. 

 a 3 . Distal end of femur and proximal end of patella of palp armed 



below with strong spines; movable jaw of mandible with two 

 or three small teeth in front of the large tooth, and one on 

 its inner side 



■ 



b 3 . Distal end of femur and proximal end of patella of palp 



unspined ; lower jaw of mandible with one small tooth in front 



formidab 



V 



of the large tooth, and none on the inner side, 



+ 



a 4 . Mandible yellow with three dark stripes ; upper jaw lightly 



sinuous, abruptly narrowed towards the point ; upper long 

 cheek-tooth close to base of jaw, the intervening area less 

 than the diameter of the tooth ...*...... 



elongatuSy C. L. Koch. 



b\ Mandible 



ht, 



gradually tapering ; 



cheek 



base of movable jaw by a space which is nearly equal to the 

 basal diameter of the latter . % . . < ..... . 



Jb. Upper jaw of mandible strongly toothed, its toothed area forming a 



continuous curve with that of the cheek-teeth. (Females.) 

 a\ Patella of palp spined below ; minor teeth on the upper jaw isolated, 



aztecus, sp. n. 



not rising close to the base of the larger teeth 



cinerascens, C. Koch. 



b 



close 



the base of the major teeth. 



a\ Tibia of palp furnished in its distal half beneath with about 



thirty lenticular papillse « 



b\ Tibia of palp without papillae beneath. 



a 7 . Tarsus of fourth leg furnished laterally with long, thick, white 



hairs ; movable jaw with three minor teeth ....... 



b\ Tarsus of fourth leg normally hairy ; movable jaw only with 



lentiyinosus , Kraep. 



/« 



a 



8 



two minor teeth. 

 Mandible ornac 



/ < 



b\ Mandible 



■•■■». 



formic arius , ( 

 aztecuSy sp. n. 







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. 





l. Eremobates aztecus, sp 



(Tab. XII. figg 



2 



§ 



3, 3 a, 



. 



$ . Colour : carapace, with exception of the black ocular tubercle and a narrow marginal transverse line on 

 each side of the latter, mandibles, palpi, and legs a uniform clear ochre-yellow, the tip of the tarsus of 

 the palp only being brownish j terga of abdomen and thorax blackish, sides of these regions deep ashy- 

 grey, sternal plates yellowish. Width of head-plate exceeding length of patella of palp, about equal to 

 its tibia and tarsus, and to patella or tibia and tarsus of fourth leg ; tubercle furnished in front with 



numerous subequal bristles. Mandible 



upper jaw armed 



distally with two large subequal teeth and a smaller tooth between them, proximally with one very large 

 tooth, which bears two much smaller teeth on its anterior slope at the base, and behind it one minute tooth 



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