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, tegulae, 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 



