122 Annals Entomological Society of America [Vol. X, 



Key to the Genera of Subfamily TegeocranincE. 



a. Cephalothorax and abdomen joined above by a chitinous shield common to 



both Scutovertex Michael, 1S79 



[Type: S. seal plus Michael] 

 aa. Cephalothorax and abdomen not joined by a chitinous shield common to both. 

 b. Ungues tridactyle. 



c. Tibiae of legs not swollen or pedicellate. 



d. Pseudostigmatic organs projecting out of the pseudostigmata. 



e. Lamellae very large, extending forward for almost the whole length 



of cephalothorax; translamella absent Cepheus Koch, 1835 



[Type: C. mi)2i(tu5^'' Koch] 

 ee. Lamellae low chitinous bars, united by a translamella, 



Chaunoproctus Pearse, 1906 

 [Type: C. cancel latus Pearse] 

 dd. Pseudostigmatic organs sunk into the pseudostigmata, 



Ommatocepheus Berlese, 1913 

 [Type: Cepheus ocel latus Michael] 

 cc. Tibiae of the legs somewhat pedicellate and swollen, 



Banksia^' Voigts and Oudemans, 1905 

 [Type: Notaspis tegeocraniis Hermann] 

 bb. Ungues monodactyle. 

 c. Lamellae blade-like. 



d. Cephalothorax separated from abdomen above by the unbroken anterior 



border of the latter •. Tegeocranus Nicolet, 1855 



[Type: T. coriaceus (Koch)] 

 dd. Cephalothorax not completely demarcated from abdomen dorsally, 

 because of the incomplete anterior border of the latter, 



Tectocepheus Berlese, 1896 

 [Type: T. velatus (Michael)] 



cc. Lamellae low solid ridges Carabodes Koch, 1835 



[Type: C. femoralis (Nicolet)] 



Key to the Genera of Subfamily Damaeina. 



a. Cephalothorax separated from abdomen dorsally by the complete anterior 

 border of the latter. 

 b. Claws of all the tarsi monodactyle. 



c. Abdomen circular or subcircular in outline; genital and anal openings 

 usually close together. 



d. Integument of dorsum of abdomen smooth Damaeus Koch, 1835 



[Type: D. geniculatus (Linn.)] 

 dd. Integument of dorsum of abdomen rough, frequently reticulate. 



Eremella Berlese, 1913 



[Type: E. vestita Berlese] 



cc. Abdomen oval, longer than broad; genital and anal openings usually 



separated from each other by a considerable distance. 



d. Cheliceras stout, strongly chelate. 



e. Integument of dorsum smooth; larger forms. .Dameosoma Berlese, 1892 



[Type: D. denticulatum^'^ (Canestrini, G. & R.)] 



ee. Integument of dorsum rough (coarsely granular or tuberculate); 



smaller forms Dameolus Paoli, 1908 



[Type: D. asperatus (Berlese)] 



dd. Chelicerae styliform Suctobelba Paoli, 1908 



[Type: 5. trigona (Michael)] 



^"Not C. tegeocranus (Hermann), or C. latns Koch. 



"Name suggested in 1905 by Voights and Oudemans to replace Kochia Oude- 

 mans, 1900, which was found to be preoccupied. Kochia was suggested by Oude- 

 mans to replace Cepheus Koch, because the type of the old genus Cepheus, C. 

 latus Koch, did not belong to the genus in ciuestion. 



'^Named by Paoli to replace the D. concolor of Berlese, which was found to be 

 different from the D. concolor (Koch). 



