DYSDERCUS. | 233 
We have received three (two male and one female) specimens of this species. The 
length of the rostrum and its distinct markings sufficiently distinguish it from any 
other species here enumerated, and its nearest ally appears to be D. longirostris, 
Stal, a Brazilian species. 
11. Dysdercus capitatus, n. sp. (Tab. XXI. fig. 21.) 
Body both above and beneath and legs ochraceous. Head and antenne black, the last with the base of first 
joint brownish. Anterior lobe of prenotum red, with the anterior collar white inwardly, and narrowly 
margined with black. Membrane bronzy, with the apical margins very pale. Anterior and posterior 
margins of prosternum, posterior margins of meso- and metasternum, acetabula, and posterior margins of 
abdominal segments pale luteous, the last with the incisures black. Legs ochraceous, tarsi piceous. 
Rostrum ochraceous, the apical joint piceous, and reaching the third abdominal segment. 
Long. 14 millim. 
Hab. Mexico (Mus. Holm.). 
Dr. Aurvillius, to whom I am indebted for the examination of this species, writes, 
“Allied to D. ferrugineus from Honolulu.” This probably refers to a MS. name of 
the late Dr. Stal. 
12. Dysdercus ruficollis. (Tab. XXI. figg. 19, 20.) 
Cimex ruficollis, Linn, Mus. Lud. Ulr. p. 180. 14; Fabr. Syst. Ent. p. 719.110; Goeze, Ent. Beytr. 
il. p. 256. 13; Fabr. Spec. Ins. ii. p. 364. 153; Mant. Ins. li. p. 299. 199; Gmel. Syst. Nat. 
i. 4, p. 2171. 388. 
Cimezx fulvo-niger, De Geer, Mém. ili. p. 840. 15, t. 34. £. 21. 
Lygeus ruficollis, Fabr. Ent. Syst. iv. p. 153. 63; Syst. Rhynch. p. 221. 80!. 
Lygeus annulus, Fabr. Syst. Rhynch. p. 227. 114. 
Pyrrhocoris annulus, Hahn, Wanz. Ins. ii. p. 18, f. 1237. 
Pyrrhocoris ruficollis, Burm. Handb. ii. 1, p. 285. 7°. 
Astemma ruficollis, Blanch. Hist. des Ins. p. 129. 4‘. 
Astemma annulus, Blanch. Hist. des Ins. p. 129. 5°. 
Dysdercus ruficollis, Stal, Berl. ent. Zeit. x. p. 382.2; Mayr, Nov. Hem. p. 133°; Stal, Hem. Fabr. 
1. p. 84. 3; En. Hem. i. p. 123. 237; Berg, Hem. Argent. p. 114. 143°. 
Hab. Nicaragua, Chontales (Janson); Panama (Boucard), Volcan de Chiriqui, 2000 
to 3000 feet (Champion).—CotomBia?®, Bogota’, Manaure (Simons); VENEZUELA 8; 
Guiana, Demerara®, Cayenne’; Brazin12457, Para’, Madeira river, Amazons (coll. 
Dist.), Pernambuco (Forbes), San Paolo’, Bahia?7, Rio Janeiro?®7; Ecuapor§; 
ARGENTINE REPUBLIC ®. 
Prof. Berg ® has given Mexico as a habitat for this species, but I have failed to find 
any authority for the statement, nor have I seen the species in any of the numerous 
Mexican collections which I have been able to examine. 
Like other species of the genus, it is of a very variable character, both the scutellum 
and head being sometimes ochraceous, and sometimes black. In some varieties the 
corium has also the apex broadly black as in Hahn’s figure? ; but this form of the 
BIOL. CENT.-AMER., Rhynch., November 1883. 30 
