50 HEMIPTERA-HETEROPTERA. 
This species varies in colour from black to pitchy castaneous ; and the legs are either 
ferruginous and unicolorous or spotted with fuscous. 
2. Macropygium parvum, n. sp. (Tab. VI. fig. 2.) 
Closely allied to the preceding species, but much smaller; head more triangular, less produced and straightened, 
lateral lobes much less cleft at apex; fifth joint of antenne considerably longer than fourth ; lateral 
margins of pronotum obscurely sinuated. Legs ochreous, more or less spotted with fuscous, fore tibie 
annulated with fuscous at middle and apex. 
Long. 7 to 8 millims. 
Hab. Panama (coll. Dist., coll. Sign.). 
OCHLERWUS. 
Ochlerus, Spin. Ess. Hém. p. 294 (1837) ; Dall. List Hem. i. p. 150 (1851); Stal, Ofv. Vet.-Ak. 
Férh. 1867, p. 524. 
Menipha, A. & S. Hist. des Hém. p. 112 (1843). 
Two species only of this genus are recorded, one of which forms part of this fauna. 
Both are Neotropical forms. It differs from Macropygiwm in not having the head armed 
with a spine near the eyes, the lateral margins are also almost straight or very slightly 
sinuated from the eyes to the apex. | | 
1. Ochlerus marginatus. 
Cimex marginatus, Fabr. Syst. Rhynch. p. 171. 86". 
Ochlerus cinctus, Spin. Hém. Ess. p. 295'; Dall. List Hem. i. p. 156. 1’. 
Cimex flavicinctus, H.-S. Wanz. Ins. iv. p. 94, f. 435°. 
Menipha brunnea, A. & 8. Hist. des Hém. p. 113. 1, pl. 12. f. 1°. 
Ochlerus flavocinctus, H.-S. Wanz. Ins. vii. p. 64. 
Ochlerus coriaceus, H.-S. Wanz. Ins. vii. p. 64, f. 734°. 
Ochlerus lutosus, H.-S. Wanz. Ins. viii. p- 65, £. 735°. 
Ochlerus circumcinctus, Stal, Rio. Hem. i. p. 17. J". 
Ochlerus marginatus, Stl, Hem. Fabr. i. p. 23. 1; En. Hem. ii. p. 13..1°. 
Hab. Muxitco?; Nicaraeua, Chontales (coll. Dist.) ; Panama (coll. Dist.)—Co.LomBta5; 
Guiana, Surinam®; Brazin134¢8, Para §, Rio Janeiro 7 8. 
Stal thus well describes the variation of this species :—“ variat marginibus lateralibus 
capitis et thoracis concoloribus vel flavescentibus, limbo abdominis concolore, flavescente, 
vel maculis flavescentibus aut ferrugineis notato.” 
| MELANODERMUS. 
Melanodermus, Stal, Ofv. Vet.-Ak. Férh. 1867, p. 524; En. Hem. ii. p. 13 (1872). 
This genus is divided from the last by the produced and acuminate anterior angles 
of the pronotum. It consists of three species, all Neotropical, of which one is here 
included. 
