THE CANADIAN ENTOMOLOGIST 



197 



Fig. 21. 1. Diplorephalus cryplodon, sp. n.. right male palpus, ectal view. x73. _. . .^ „ 



proximal portion of tarsus of same palpus. x44. 3. Epigynum. x73. 4. Spirembolus vallicolens. sp 

 n., male palpus, ventral view. x86. 5. Male palpus, distal view. x80. " '"' '"" 



2. Dorsal view of tibia and 

 Spirembolus mllicol 

 Epi£;j-num. xlO.'i. 



6. 



apart, their diameter from the laterals. In the palpus the tibia at its distal 

 end is expanded into a thin cup or calyx over the base of the tarsus as in denti- 

 palpis (Emerton). On the inner surface of the dorsal part of this calyx, or 

 hood, is borne a small tooth but this is well removed from the edge and is smaller 

 and less chitinous than that of dentipalpis. In contrast with the conspicuously 

 long and exposed embolus of dentipalpis, that of the present species is com- 

 paratively short though presenting a similar double curve, as shown in Fig. 

 21, 1 and 2. 



Length of male 2.5 mm. Length of cephalothorax L2 mm.; width 1 mm. 



Locality .—\5t2ih. 



Spirembolus, gen. nov. 



Cephalothorax normally narrowed anteriorly, the front obtuse. Clypeus 

 higher than the length of median eye area, strongly convex in dorsal views. 

 Anterior row of eyes from straight to procurved; medians much smaller than the 

 laterals and nearer to each other than to the latter. Posterior row of eyes from 

 straight or slightly recurved, as in the genotype, to slightly procurved; medians 

 farther from each other than from the laterals, or the eyes nearly equidistant 

 (male of vallicolens). Area of median eyes wider than long. Anterior tarsi 

 shorter than the metatarsi. In the male palpus the tibia bears a slender 

 apophysis which extends ov^er the tarsus which ends in a slender pointed tip 

 which is bent abruptly. Cymbium of tarsus conspicuously elevated in middle 

 above; bulb characterized by having the embolus coiled in a spiral which widens 

 from the base of the bulb distad, the coils being nearly at right angles lo the 

 long axis of the joint, and thus quite from the disposition in Spiropalpus. 



Genotype. — Cornicularia monticolens Chamberlin. ' 



