300 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



Ctenopelma Holmgren. 

 °C. sanguineum Provancher. 



Female and male : length 8-10 mm. ; mostly reddish ; female 

 with the scutel, tegulse, and a line on the mesopleurae, and male 

 with the scutel, tegulae, tubercles, a line on the mesopleurae, the 

 sternum, face, orbital lines, and mouth-parts, yellow; fore and 

 mid legs and prothorax yellowish; areolet petiolate; ovipositor 

 slightly exserted. 



Rhorus Foerster. 



R. bicolor (Cresson). 



Female and male : length 7-8 mm. ; head and thorax mostly 

 black, abdomen mostly reddish, in the male blackish at base and 

 apex, in the female dusky at base ; fore and mid legs in the female 

 mostly brownish stramineous or plain stramineous, in the male 

 with the fore and mid coxae and trochanters as well as the tro- 

 chanters of the hind legs, whitish ; hind legs in both sexes mostly 

 reddish ; areolet hardly petiolate, practically sessile ; exserted por- 

 tion of ovipositor a little longer than the second joint of the hind 

 tarsi. 



West Haven, 27 June, 1905 (H. L. V.). 



^ Exyston Schiodte. 



Abdomen more or less reddish. * 



Key to Species-. 



1. Thorax black, with light markings 2 



Thorax and head honey-yellow to reddish; petiole of abdo- 

 men carinate; wings hyaline. Length 7-8 mm. (female 

 and male) • -variatus 



2. Scutel entirely yellow; hind coxae reddish; abdomen black 



at base 3 



Scutel yellow only at tip; abdomen blackish at apex; hind 

 coxae black or blackish, hind femora and tibiae reddish, nar- 

 rowly black at base and apex; abdomen mostly reddish, 

 black on first and at base of second,- also at base of dor- 

 sal segments on apical portion of abdomen; apical margin 

 of third and following segments usually yellow; face en- 

 tirely yellow. Length 2.9 mm. (male) clavatus 



3. Head black, or black and yellow, behind eyes; thorax usually 



black. Length 6-9 mm. (female and male) abdominalis 



Head reddish behind eyes; thorax more or less reddish; 



as long as the typical form (female and male) 



abdominalis var. rufinus 



