THE LADY BEETLES. 



517 



986a ( ). Anatis 15-punctata mali Say, Journ. Phil. Acad. Nat. Sci., 



IV, 1824, 93; ibid. I, 192. 

 A variety of 15-punctata having the ground tint reddish-brown and each 

 elytral spot surrounded by a broad pale border; the marginal spot of the 

 median row divided or geminate. Length 8-9 mm. (Fig. 185, e.) 



A single specimen was taken from beneath a chunk on the 

 beach of Lake Michigan, near Millers, Lake County, on May 13 ; 

 15-punctata being common along the beach on the same elate. 



VIII. Psyllobora Chevr. 1806. (Gr., 1 1 a flea + to eat. ") 



Small oval or rounded convex species, having the upper surface 

 pale, spotted with a darker tint; scutellum minute; mesosternum 

 truncate ; tarsal claws with a large quadrate tooth on inner side near 

 apex. One species occurs in Indiana. 



987 (3078). Psyllobora 20-macuiata Say, Journ. Phil. Acad. Nat. Sci., 

 IV, 1824, 96 ; ibid. II, 234. 

 Rounded or broadly oval, convex. Yellowish-white; thorax with five 

 black or brownish spots, the one in front of scutellum the smaller ; elytra 

 each with nine spots, the two cliscal usually merged and sometimes joining 

 the others partly together. Beneath pale brownish-yellow, the sternum 

 and middle of ventral segments black. Thorax finely, elytra more strongly 

 and closely, punctate. Length 2-2.5 mm. (Fig. 191, g.) 



Frequent throughout the State. April 5-October 20. Prob- 

 ably hibernates. Occurs in early spring in numbers about the base 

 of skunk cabbage and on leaves of various shrubs. 



Tribe III. CHILOCORINI. 



Antenme very short, compact, narrowly elavate and inserted 

 under a broadly dilated frontal plate, thus concealing their base; 

 thorax very small, deeply emarginate in front and rounded behind; 

 epipleura very broad, concave, strongly descending on the outer 

 side; legs short, femora not extending beyond sides of body; tarsi 

 beneath densely, spongy pubescent. Three genera compose the 

 tribe, all of which are represented in Indiana. 



KEY TO INDIANA GENERA OF CHILOCORINI. 



a. Front tibia with a small tooth on outer margin near base; thorax pubes- 

 cent toward sides ; length less than 6 mm. IX. Chilocorus. 

 aa. Front tibia without a tooth ; thorax not pubescent toward the side mar- 

 gins. 



~b. Body convex, not compressed nor excavated beneath ; size small, not 

 over 3.5 mm. x . Exochomus. 



bl). Body very convex, subcompressed above, excavated beneath for the 

 femora ; size large, 6 or more mm. XI. Axion. 



