AROCERA. . 73 
duced than the central, and the odoriferous orifice being longer and much more pro- 
duced. The anterior and lateral margins of the pronotum are slightly elevated and 
reflexed. Considerable variation occurs, as with all the brightly coloured Pentatomine.. 
The genus is confined to Tropical America. | 
1. Arocera acroleuca. 
Pentatoma acroleucum, Perty, Del. Animal. Artic. p. 168, t. 38. f. 11°. 
Cimex acroleucus, Burm. Handb. ii. p. 366. 6”. 
Arocera aurantiaca, Spin. Ess. Hém. p. 318°; H.-S., Wanz. Ins. vii. p. 90*. 
Pentatoma equinoctialis, Hope, Cat. i. p. 33. 
Ooedosoma acroleucum, A. & 8. Hist. des Hém. p. 128. 1°. 
Strachia acroleuca, Dall. List Hem. 1. p. 263. 16°. 
Arocera acroleuca, Stal, En. Hem. ii. p. 38. 1”. 
Hab. Nicaragua, Chontales (coll. Dist.); Costa Rica, Irazu (Rogers).—Guiana, 
Cayenne®; Braziu12%467, Rio Janeiro ’. 
2. Arocera melanopyga. (Tab. VII. fig. 11.) 
Strachia melanopyga, Stal, Ofv. Vet.-Ak. Forh. 1858, p. 437. 17.” 
Arocera melanopyga, Stal, Stett. ent. Zeit. xxiii. p. 107. 85°; En. Hem. ii. p. 38. 3°. 
Hab. Mexico 122, 
The specimen figured is from Mexico, and is in the collection of Dr. Signoret. 
3. Arocera apta. (Tab. VII. fig. 12.) 
Strachia apta, Walker, Cat. Het. ii. p. 323. 41°. 
Hab. Panama (Mus. Vind. Ces.).—BraziL, Amazon region '. 
The specimen from Panama here figured is brighter in hue than the type, and slightly 
larger. The three large bluish-black spots on each side of the sternum are a good dis- 
tinctive character. 
4, Arocera protea, n.sp. (Tab. VIL fig. 18.) | 
Testaceous ; head with the central lobe much shorter than the lateral, the lateral margins raised and reflexed, 
the apices of the lateral lobes narrowly but deeply concave, posterior portion from anterior margin of 
eyes black; eyes also black. Antenne black, joints gradually increasing in length, last three joints 
pilose, third joint clavate, fourth and fifth regularly thickened. Pronotum levigate, with the anterior 
border, apical portion of the lateral borders, a round spot at each humeral angle, and two subconical 
spots (narrowly connected at base) on posterior margin black. Scutellum with two basal subquadrate 
spots (connected with those on pronotum) and apical portion black. Corium with a central transverse 
black fascia. Connexivum with the apical margin of each segment black. Underside of body and head 
testaceous ; legs, anterior margin of prosternum, some irregularly defined spots on each lateral margin of 
sternum, abdomen with a central longitudinal row of transverse fascie gradually diminishing in width 
from base to apex, a stigmatal row of rounded spots, and a marginal row of obconical spots black. 
Rostrum reaching posterior coxe; first joint testaceous, remainder black. 
Long. 12 millim. 
BIOL. CENT.-AMER., Rhynch., December 1880. 10 
