JuneiSgg] CaSEY : On AMERICAN COCCINELLID^E. 1 1 -'J 



opment and subequilateral. The eyes are well developed, with their 

 inner sides nearly straight and parallel, and having a narrow deep an- 

 terior emargination, the antenna; very short but apparently of eleven 

 joints, inserted very close to the eyes, exposed at base, the clypeus 

 narrowed and feebly sinuato-truncate. The fourth joint of the max- 

 illary palpi is securiform throughout. The anterior coxae are remotely 

 separated, with the prosternum flat and devoid of carina;, the apex 

 feebly deflexed in some species of Zagloba, but not enough to afford 

 protection to the trophi. The legs are perfectly free, the epipleurce 

 narrow and flat and devoid of any trace of impression, even the basal 

 pit of Scymnus being rudimentary. The tibiae are slender and can be 

 folded back into a feeble femoral depression, the tarsi well developed 

 and free, and the claws slender and apparently simple. The genera 

 and species are few in number as thus far discovered. The genera may 

 be defined as follows : — 

 Metacoxal arcs small and short, semi-circular and either entire or failing to attain 



the base externally ; body coarsely pubescent Zagloba 



Metacoxal arcs curving outward at a slight distance from the suture, and almost at- 

 taining the sides of the body, nearly as in the subgenus Scymnobius ; body 

 smaller in size and subglabrous Scy mnillus 



These genera are both represented in the more southern parts of 

 the United States from the Atlantic to the Pacific. 



Zagloba, gen. nov. 

 The body is broadly rounded or oval, and clothed rather plentifully 

 above with moderately long erect or semi-erect bristling whitish hairs, 

 which, on the elytra, stream irregularly, forming partial vortex-like 

 arrangements of the pubescence. The species are rather few in number 

 and are invariably mixed up in cabinets with Scymnus, from which they 

 differ radically in abdominal structure. Their departure from Scymnus 

 was recognized by Dr. Horn, but that author, neglecting to observe 

 the abdomen, placed the only species thus far described in Cephalo- 

 scymnus, with which it has no real affinity, and no resemblance, except 

 a slight similarity in the form of the eyes and prothorax. Our species 

 known to me are as follows : — 



Metacoxal arcs entire, joining the base of the first segment 2 



Metacoxal arcs not attaining the base of the first segment externally ; body broadly 



rounded. Atlantic regions 6 



2 — Body very broadly rounded ; prosternum slightly deflexed at apex. California .... 3 

 Body narrowly oval or oblong-oval, the prosternum perfectly flat and less remotely 



separating the cox?e. Atlantic regions 5 



