350 TENTHKBDINID-ZE. 



112. Pamphilius semicinctus. 



Lyda semicinctus, Nort. Proc. Ent. Soc. Phil. i. p. 144 (1862). 

 Lyda semicincta, Nort. Trans. Amer. Ent. Soc. ii. p. 341 (1869). 



Hob. Virginia. 



113. Pamphilius rileyi. 



(Plate XIII. fig. 8.) 



Lyda rileyi, Cress. Trans. Amer. Ent. Soc. viii. p. 32 (1880). 



Exp. al. 7 lin., long. corp. 3J lin. 



Black ; head pale yellow, with two deep sulci on the vertex ; 

 neighbourhood of the ocelli black, this colour extending forwards 

 below the antennae in the middle, though there is a yellow ring 

 between them, and a yellow spot underneath ; the black colouring 

 also extends laterally nearly to the eyes both above and below the 

 antennas, as well as the back of the head, in three converging 

 stripes; there is a black spot behind each eye, and the base of 

 the head is wholly black. Antennas rather short, 18(?)-jointed, 

 the joints gradually diminishing in length after the third ; black, 

 with a slight reddish shade towards the extremity. Thorax with a 

 double yellow triangle in front ; scutellum yellow, with an oblique 

 yellow stripe running from each front edge ; a large pale yellow spot 

 on each side of the neck, adjoining a large hook-shaped spot on the 

 sides of the thorax ; and there is another on each side of the meta- 

 thorax. Abdomen with a pale triangle at base ; segments narrowly 

 edged with pale yellow both above and below ; sides and extremity 

 broadly yellow below, but very narrowly above ; all the legs yellow 

 except the base of the hind coxas. Wings hyaline, with reddish- 

 brown stigma and nervures; basal nervures and interior of the 

 stigma yellowish; second brachial cell with only the commence- 

 ment of a cross-nervure. 



Hab. Southern States. 

 a. 5 . Georgia ? 



This species stood in the collection under the MS. name of 

 variegatus. After figuring it under the impression that it was new, 

 I have succeeded in determining it as P. rileyi, Cress. 



114. Pamphilius cavifrons. 



Lyda cavifrons, Cress. Proc. Ent. Soc. Phil. iv. p. 246 (1865) ; Nort. 

 Trans. Amer. Ent. Soc. ii. p. 341 (1869). 



Hab. Colorado. 



115. Pamphilius inconspicuus. 

 Lyda inconspicua, Nort. Trans. Amer. Ent. Soc. ii. p. 341 (18139). 

 Hab. Pennsylvania. 



