1182 FAMILY LIII. CHKYSOMELID^. 



*2181 (6932). CEDIONYCHIS VIANS 111.. Mag. fur Insect.. VI. 1807, 83. 



Oblong-oval, moderately convex. Black, usually 

 with a slight violet or greenish lustre; thorax red- 

 ilish-yellow with an inverted W-shaped black spot 

 (var. scripticollis Say) or with a large transverse 

 discal spot, so that the margins only are pale; tip 

 and sides of abdomen yellowish. Antenna; about 

 half the length of body, third joint longer than 

 fourth. Thorax twice as wide at base as long, nar- 

 rowed in front, sides nearly straight, angles promi- 

 nent ; surface finely alutaceous. rather coarsely and 



I- if!, olli. X 5. (Original.) 



sparsely punctate. Elytra a little wider at base 



than thorax, surface alutnceous. closely and finely punctate. Length 4.~> 



1 mm. (Fig. 516.) 



Throughout the State; frequent. Febrmn-y 1 ~1 October fi. Hi- 

 bernates with the preceding. 



218la (6932a). (EmoNvcms VIANS SCRIPTICOLLIS Say, Journ. Phil. Acad. 



Nat. Sci., IV, 1824, 84; ibid. II, 226. 



Form and general appearance of riaiis. The head lias a transverse 

 reddish spot between the eyes and another smaller one at the base of each 

 antenna; thorax with the black discal spot in the shape of an inverted W. 

 Elytral punctures distinctly coarser, deeper and more dense. Length 6- 

 7 mm. 



I ake and Lawrence counties; scarce. May 14- June 12. Horn 

 makes this a synonym of rm.s\ but the different punctuation of the 

 elytra is sufficient to make of it at least a distinct variety. 



2182 (6932c). (EDIONYCIIIS CONCINNA Fabr., Syst. Eleut., I, 1801, 4!)'.). 

 Oblong-oval, moderately convex, feebly shining. Black, except the ely- 

 tra, which are dark blue or with a greenish tinge; tip and sides of abdo- 

 men yellowish. Antenna 4 not half the length of body, third joint longer 

 than fourth. Thorax twice as wide at base as long, sides straight or feebly 

 curved; base deeply sinuate near hind angles, which are prominent; surface 

 alutaceous, sparsely and rather coarsely punctate. Elytra alutaceous, sparsely 

 and very finely punctate. Length 6.5-7.5 mm. 



Lake County ; rare. May 21. Recorded before only from Geor- 

 gia and Texas. 



2183 (6935). CEDIONYCHIS TIIORACICA Fabr.. Syst. Eleut., I. 1801, 498. 

 Broadly ovate, feebly convex. Head, thorax and under surface red- 

 dish-yellow; thorax with seven black dots forming a curved front row and 

 three just behind them, these often mure or less confluent; elytra dark 

 blue with a narrow margin on basal half and epipleurre reddish-yellow; an- 

 tenna? and tarsi piceons, the former half as long as body, third and fourth 

 joints equal. Thorax slightly more than twice as wide as long, sides nearly 

 straight, angles acute; disk rather coarsely and closely punctate. Elytra 

 a little wider at base than thorax, surface rather coarsely and densely 

 punctate. Length 5.5-7 mm. 



Southern half of State: scarce. April 15-Oetobor 1. Often 

 taken on the win<_r. 



