444 CLASS viii. 



A. Anterior feet raptorial, short, with coxae elongate, thicker 

 than thighs. (Four posterior feet very slender). 



Ploiaria ScOPOLi, LATE. \_Gferris FABR., BURM.], Emesa FABR., 

 BURM. (and Emesodema SPINOLA, AMYOT). Antennas longer than 

 body, setaceous. 



Sp. Ploiaria vagabunda, Cimex vagabundus L., SCHELLENBEBG, Cimic. 

 Tab. viii.; CUVIEB, R. Ani. ed. ill., Ins. PI. 92, fig. 3; 2 '" long, feet 

 ringed, yellow-white, and black ; this little creature has a staggering gait, 

 like some long-legged gnats 1 . 



B. Anterior feet not raptorial, with coxae short. 

 Zelus FABR. Body linear, with very long feet. 



Mycoris BURM. Elytra entirely membranous. First joint of 

 tarsi indistinct, almost entirely retracted upon the tibia. 



Reduvius FABR. Body oblongo-oval. 



Sub-genera : Ndbis LATH., and Reduvius ejusd. 



Sp. Reduvius personatus FABR., Cimex personatus L., DE GEER, M6m. in. 

 PL 15, figs, i 9; SCHELLENBEBG, Cimic. Tab. vii. fig. i; Cuv. R. Ani. 

 ed. ill., Ins. PI. 92, fig. i ; black, nine lines long ; the larva covered with 

 dust and flue, coated as it were, lives in houses and feeds on insects; 

 Reduvius amcenus GUERIN (Reduv. bullatus Leyd. Mus.), GUER. Iconogr., 

 Ins. PI. 56, fig. 17; i". i'" long, abdomen vermilion red, concave above, 

 cuticularly expanded with five black-blue round spots on each side ; Java. 



Note. Many sub-genera of more recent authors have been omitted, on 

 which conip. BUBMEISTEB (Handb. der Entomol. II. pp. 227 247), also 

 AMYOT et SEBVILLE (Hist. not. des ffemipt. pp. 321 393; many of the 

 names barbarous, taken from the tongues of Indians, Hebrews and Chinese). 



1 There is a still smaller native species, about if" long, which has darker wings, 

 and the black rings on the feet broader than the yellow-white, Ploiaria erratica, 

 Gerris erraticus KLUG, Cimex culiciformis DE GEEB ? in. PI. 17, figs, i 8. The 

 genus Ploiaria was established by J. A. SCOPOLI in his Delicice Florce et Fauna; Insu- 

 Iricce (Ticini, 1786, folio), and indeed upon a wingless species from which the genus 

 Emesodema was afterwards formed. This species, magnified, is several times figured hi 

 SCOPOLI'S work under the name of Ploiaria domestica, i. Tab. xxiv. figs, i, 2, II. Tab. 

 xxiii. ; the Ploioria alata in the third part, Tab. xxv. fig. vi, figured by Count 

 CASTILLIONE, agrees perfectly with the species noted by me as Ploiaria erratica. 

 LESSON, in his Illustrations de Zoologie, PI. 53, has figured, if I mistake not, the 

 Ploiaria domestica of SCOPOLI under the name of Ploiaria vagabunda. 



