BIOLOGIA CENTRALI-AMERICANA 
ZOOLOGIA. 
Class INSECTA. | 
Order RHYNCHOTA. | 
Suborder HEMIPTERA-HETEROPTERA. 
Fam. PENTATOMIDA. 
Subfam. CY DNINE. 
Cydnina, Stal, En. Hem. v. p. 17 (1876). 
This subfamily, as founded by Stal, includes the genus Thyreocoris—which, under 
the name of Corimelena, White, was placed by Dallas in his family: Odontoscelide, 
and is still kept apart by Prof. Uhler (who has recently written a Monograph of his 
family ‘Cydnide as found in North America) in another family he retains under the 
name of “ Corimelenide.” 
Of the genera at present described, the majority belong to the Nearctic and Neotro- 
pical Regions, of which about two thirds only have as yet been recorded from Central 
America. These calculations, however, are exceedingly tentative, although both Stal 
and Prof. Uhler appear to have had almost all available specimens in their hands when 
pursuing their generic revisions. 
LOBOSTOMA. 
Lobostoma, Amyot & Audinet-Serville, Hém. p. 87 (1848) ; Dall. List Hem. i. p. 110. 
This genus contains two species, one of which is only known from Central America. 
It is easily recognized by the great dilatation of the second joint of the rostrum. 
1. Lobostoma gigantea. 
Cydnus giganteus, Burm. Handb. ii. 1, p. 375. 8’. 
Lobostoma giganteum, A. & S. Hém. p. 88. 1, pl. 2. f. 6; Dall. List Hem. 1. p. 111.1°; Stal, En. 
Hem. v. p. 18*; Berg, Hem. Argent. p. 9 (1879) °. 
Hab. Honpuras®.—Cotompia?; Brazin } 234, 7 
BIOL. CENT.-AMER., Rhynch., April 1880, I 
