THE LEPTOCORISINAE OF THE WORLD 57 



o* genitalia : Claspers thicker at bases, strongly curved in middle (Text-fig. 159) ; dorsal 

 thecal appendages absent ; ventral pair long, thicker at bases, very thin and truncated at 

 apices ; four pairs of lateral conjunctival appendages as in Text-fig. 157 ; frontal conjunctival 

 appendages, paired, long, curved in middle, not at all curved at apices, dorsal appendages as in 

 Text-fig. 157. 



$. Body length, 15 0-160 mm., width, 2-2-2-3 mm. Head length, 1-9-2-0 mm., width, 

 1 -3-1 4 mm. (only paraclypeae 0-70 mm.). Antennae, segment I, 30-3-1 mm., II, 2-1-2-3 mm., 

 Ill, 2-3-2-4 mm., IV, 3-6-3-9 mm. Rostrum, segment I, 1-3-1-5 mm., II, 1-4-1-5 mm.. Ill, 

 0-7-0-8 mm., IV, 0-75-0-85 mm. Pronotum, length, 2-6-2-7 mm., width, 2-2-2-3 mm. Hind 

 femora, 5-9-6-3 mm. Hind tibia, 6-1-6-4 mm. Distance between ocelli, 0-5-0-56 mm., 

 distance between an ocellus and an eye, 0-66-0-7 mm. 



Slightly larger than rj I posterior margin of seventh abdominal sternum slightly notched in 

 middle, forming rounded lobes, large basal portion of eighth paratergite concealed (Text-fig. 160). 



$ genitalia : First gonocoxae comparatively small, outer margins sinuate and apices 

 rounded (Text-fig. 164) ; intervalvular sacs absent ; spermatheca flask-shaped with a curved 

 long neck and uniformly thick coiled tube (Text-fig. 165). 



Type material. Holotype without data, Riksmns. Stockholm. Holotype $, of 

 Leptocorisa crudelis Westwood, without data, Hope Dept., Univ. Mus., Oxford. 



Other material. U.S.A. : 2 $ ; Brazil : 5 <$, 5 $ ; Colombia : 2 <J ; Mexico : 

 3c>. 5$ ; British Guiana : 13* ; Panama : 8$, 5$ ; Ecuador : 2$, 2$ ; Cuba : 

 1 $ ; Paraguay : 1 <J, 1 $. 



This species is very common in the northern Neotropical region, its range extend- 

 ing in the north into Texas and Florida, and in the south into Brazil. Adults have 

 been collected throughout the year but it seems to be more common in April, May, 

 and June. 



This species is closest to 5. americana sp. n., from which it can be separated by a 

 short rostrum, which never extends beyond apices of second coxae and by the frontal 

 conjunctival appendages of the aedeagus. 



Stenocoris (Stenocoris) v-nigrum (Blote) comb. n. 



(Text-figs. 166-174) 



Leptocorixa (Stenocoris) v-nigrum Blote, 1937 : 293 ; Villiers, 1955 : 1142, 1144, 1963 : 232 



Characterized by long rostrum, which approaches third coxae and by the form of 

 cj and $ genitalia. 



o*. Body length, i4-o-i5-5 mm., width, 2-1-2-25 mm - Head length, 1-9-2-25 mm., width, 

 1-5-1-6 mm. (only paraclypeae 0-6-0-7 mm.). Antennae, segment I, 3-7-3-8 mm., II, 2-7- 

 2-9 mm., Ill, 2-8-3-0 mm., IV, 3-7-3-9 mm. Rostrum, segment I, 1-65-1-75 mm., II, 17- 

 20 mm., Ill, 0-8-0-9 mm., IV, o-8-i-o mm. Pronotum length, 2-3-2-5 mm., width, 21- 

 2-25 mm. Hind femora, 5-0-6-0 mm. Hind tibia, 6-4-6-6 mm. Distance between ocelli, 

 0-4-0-5 mm., distance between an ocellus and an eye, 0-7-0-8 mm. 



Body comparatively robust, pale, tinged with black. Head about a third as long again as 

 broad ; occipital suture " V "-shaped in middle, arms continuing straight towards sides ; 

 paraclypeae about one-third of head length, uniformly thick and rounded at apices. Antennae 

 brownish black, tinged with red, underside of basal segment, articulation between first and 

 second segment, middle of second and at least basal third of apical segment pale. Rostrum 

 long, usually reaching anterior margin of third coxae. Lateral black line well represented on 



