206 . HEMIPTERA-HETEROPTERA. 
2. Macrophthalmus pallens, (Tab. XII. fig. 19, larva, in profile.) 
Macrophthalmus pallens, Lap. Essai @’une class. syst. Hémipt. in Guérin’s Mag. Zool. 1832, p.11'; 
Stal, Enum. Hemipt. ii. p. 113”. 
Macrops pallens, Burm. Handb. der Ent. ii. p. 233°; Amyot et Serv. Hist. Nat. Ins. Hémipt. 
p. 848°; Herr.-Schaff. Wanz. Ins. viii. p. 68, t. 270. fig. 836°; Walk. Cat. Hemipt. Heteropt. 
vill, p. 11°. , | 
Hab. Mexico, Orizaba, Oaxaca (Sallé, in Mus. Brit.), Atoyac in Vera Cruz (H. H. 
Smith), Chiapas (M. Trujillo); Brrrish Honpuras, R. Sarstoon _(Blancaneaur) ; 
GuaTEMALA, San Gerénimo, Tamahu, and Teleman in Vera Paz, El Reposo, Las 
Mercedes (Champion); Panama, Bugaba, Tolé (Champion). — Souta Amertca5, 
Colombia ? ®, Venezuela ®, Guiana 4 ®, Amazons ®, Brazil ! 2 3, 
_ An abundant insect in the forest-clearings of the “ tierra caliente ” of Chiriqui. The 
larva of this species has on the disc of the pronotum two very long spines, which are 
erect to near the middle and then curved forwards (fig. 19); a specimen was found at 
Teleman with the fully-developed form. 
CONORRHINUS. 
Conorhinus, Laporte, Essai d’une class. syst. Hémipt. in Guérin’s Mag. Zool. 1832, p. 78; 
Burmeister, Handb. der Ent. ii. p. 245 (part.); Stal, Berl. ent. Zeitschr. 1859, p. 106; 
Hemipt. Afr. iii. p. 120; Hemipt. Fabr. i. p. 123; Enum. Hemipt. ii. pp. 108, 111 (nec 
Schoénherr, 1836). 
Triatoma, Laporte, loc. cit. p. 11. 
A genus containing about twenty known species *, spread over the warmer parts of 
both hemispheres. They are of large size, and some of them are stated to attack man, 
the “great black bug” or ‘benchuca” of the pampas, mentioned by Darwin in his 
‘Journal of the Voyage of the Beagle,’ p. 403 (1839), being the larval or pupal form 
of a Conorrhinus. Prof. Ubler (Bull. U.S. Geol. & Geogr. Surv. i. p. 331) notes the 
extended range of C. sanguisugus, Lec., and describes it as a blood-thirsty tenant 
of beds in houses. C. dimidiatus has been seen by myself in Guatemala in suspicious 
proximity to beds, though it was not actually observed in the act of blood-sucking. 
The genera Meccus, Lamus, and Rhodnius, Stal, include closely allied forms, the last- 
mentioned not being represented within our limits f. 
1. Conorrhinus dimidiatus. (Tab. XII. figg. 20, ¢; 21, 2, var. maculipennis.) 
Reduvius dimidiatus, Latr., in Humb. et Bonpl. Obs. Zool. i. p. 149, t. 15. fig. 11 (1811). 
Conorhinus dimidiatus, Stal, Berl. ent. Zeitschr. 1859, p. 110, t. 6. tig. 2 (head) *; Hemipt. Fabr. i. 
p. 124°; Enum. Hemipt. ii. p. 111‘; Walk. Cat. Hemipt. Heteropt. viii. p. 16°. 
* The South-American C. lignarius and O. porrigens, Walk., would perhaps be best placed in Lamus, Stal. 
t One of the two specimens included under C. limosus by Walker (the one from Archidona) = Rhodnius 
erolixus, Stal. 
