300 THK CANADIAN ENTOMOLOGIST. 



N^MIA, Mills. 



To this genus belongs JST. episcopalis, Kirby, a small species (.15 in.) 

 hi more than usually elongate and parallel form, black beneath, with the 

 legs and sides of the abdomen yellow. Above, the head and prothorax 

 are black with yellow stripes, the elytra yellow with a narrow common 

 black sutural vitta, and on each a broader discoidal one ; none of these 

 reach the apex. 



Megilla, Muls. 



The well-known M. maculata, DeGeer, is of an oval, not very convex 

 form, black beneath, the prosternum and a row of triangular lateral 

 abdominal spots reddish. Above, reddish, with large black spots as 

 follows : — Two large black sub-triangular on the prothorax, one diamond- 

 shaped on the scutellar region of the elytra, one transversely elliptical on 

 the suture about three-fourths to tip ; each elytron has in addition 

 four spots (the second the largest) arranged longitudinally near 

 the external edge. Legs black, head black with a triangular 

 frontal spot prolonged on to both sides at the broad end. 

 Length, .20 to .22 in. (Fig. 37.) 



HiPPODAMIA, Muls. 



The species are rather numerous and vary to a considerable extent in 

 the size of the elytral black spots. The thorax has a pale border and 

 often two white dashes on the disk. 

 A. Tibiae black. 



b. Thoracic border sinuate or interrupted. Discal marks absent, or 

 nearly so. 



Basal elytral spots large, usually connected so as to form a 



transverse band. Length, .25-. 27 in .. .j-54^//d!/<?, Kirby. 



Basalelytral spots small or wanting,. 28- 3oin. Lecofitei,M.\x\s. 



bb. Thoracic border nearly uniform, disk with two white dashes. 



Elytral spots small, never united, . 18-. 20 m...co}ivefge?is,G\XQr. 



A A. Tibise pale. 



Thorax with quadrate yellow spot at middle of base, 



.16-20 in parenthesis, '$>^.y. 



Thorax without spot at base, .20-. 24 in ij-punciata, Linn. 



Fig. 38 is a diagram of Hippodainia s-signata ; Fig. 39 — A the larva, B 

 the piipa, and C the imago oi H. convergens ; Fig. 40 H. parenthesis ; Fig. 

 41 If. i^ptinctata. 



