CYDNIDAE OF THE WESTERN HEMISPHERE — FROESCHNER 375 



Pronotum: Length-width ratio, 3.18(3.15-3.22) :5.17(5.10-5.25); 

 posterior lobe with distinct, fine punctures. 



Scutellum: Length-width ratio: 4.12(4.05-4.20) :3.18(3. 15-3.22); 

 with few, scattered, fine punctures. 



Hemelytron: Shining, with small, distinct punctures; membrane 

 surpassing apex of abdomen by about one-third its length. 



Legs: Discal tubercles of hind tibial corbicle arranged in a single, 

 irregular row very close to outer margin of corbicle (fig. 134). 



Terminalia: Gonostylus as illustrated (fig. 191). 



Length of body: 8.57(8.55-8.60). 



Female: Three specimens. Very similar to male, measurements 

 somewhat larger. 



Head: Width-length ratio, 2.05(2.02-2.06): 1.79(1.72-1.85); inter- 

 ocular width, 1.37(1.36-1.40); width of eye, 0.32(0.32-0.33). Anten- 

 nal segments: I, 0.75(0.73-0.76); II, 0.69(0.66-0.73); III, 0.51(0.50- 

 0.53); IV, 0.71(0.70-0.73). Labial segments: I, 0.66(0.60-0.70); II, 

 0.74(0.70-0.76); III, 0.46(0.43-0.50); IV, 0.41(0.40-0.43). 



Pronotum: Length-width ratio, 3.43(3.22-3.75): 5.47 (5.25-5.83). 



ScuteUum: Length-width ratio, 4.07(4.00-4.14) :3.23(3.07-3.48). 



Length of body: 9.33(9.00-9.60). 



Type data. — The type series of "many specimens," including 

 nymphs as well as adults, was originally recorded by Champion 

 (1900, p. 256) as coming from "Guatemala, Capetillo." Some of these 

 specimens are probably still in the British Museum (Natural History). 



Champion (1900, p. 256) reported that the types had "been found 

 underground, at the roots of sugar cane and other plants." 



Specimens studied. — 2 males, 9 females, 1 nymph. 



Mexico: Chiapas: Huixtla, 1939, B. D. Pelaez, 5 females (Pel, RCF). 

 Guatemala: West coast, Nov. 20, 1928, V. C. Dunlap, 1 male, 4 females, 

 1 nymph (USNM), Guatemala, J. G. Salas, on sugar cane, 1 male (USNM). 



Scaptocoris castanea Perty 



Plate figures 135, 192 



Scaptocoris castanea Perty, 1833, p. 166, pi. 33, fig. 5. 



Scaptocoris terginus (not of Schiodte) St&l, 1876, p. 17.— Signoret, 1881b, p. 42, 



pi. 1, fig. 3. — Berg, 1884, p. 11 (part) .— Lethierry and Severln, 1893, p. 61 



(part).— Torre Bueno, 1914, p. 162 (part). 



Diagnosis. — The small size and lack of distinct punctures on the 

 posterior lobe of the pronotum will separate this species from the 

 others in the genus. 



Description. — Male (from two specimens): 



Head: Wider than long, 1.5(1.40-1.63): 1.36(1.33-1.40); interocular 

 width, 1.05(0.96-1.14); ocellus large, separated from eye by less than 

 an ocellar width; clypeus narrow, parallel-sided, reaching or slightly 



