84 I. AHMAD 



$. Body length, 16-8-18-1 mm., width, 2-7-2-9 mm. Head length, 2-7 mm., width, 

 1-7 mm. Antennae, segment I, 4-1-4-8 mm., II, 2-7-2-9 mm., Ill, 3-1-3-7 mm., IV, 4-3- 

 4-5 mm. Rostrum, segment I, 1-7-1-8 mm., II, 1-5-1-9 mm., Ill, o-8-i-o mm., IV, 0-7- 

 i-o mm. Pronotum, length, 2-9-3-1 mm., width, 2-7-2-9 mm. Hind femora, 6-7-6-8 mm. 

 Hind tibia, 7-0-7-1 mm. Distance between ocelli, 0-5-0-6 mm., distance between an ocellus 

 and an eye, 0-8-0-9 mm. 



Very similar to o" in general appearance ; posterior margin of seventh abdominal sternum 

 with a minute median rounded projection (Text-fig. 280). 



$ genitalia : First gonocoxae large, rounded at apices (Text-fig. 241) ; seven pairs of 

 intervalvular sacs (Text-fig. 283) ; spermatheca elongated, almost divided in middle, with a 

 median flange (Text-fig. 227). 



Type material. Neotype <$, China : Foochow (Fuchou), 10-14. vii. 1936 {M. S. 

 Yang), B.M.(N.H.) ; holotype $ of Leptocorisa nitidula Breddin, China : Pingh' 

 siang, near Kwangsi (Coll. Breddin, labelled " Leptocorisa nitidula Bredd. "), 

 Dtsch. Entom. Inst., Berlin ; holotype <$ of Leptocorisa corbetti China, Malaya : 

 Kuala Lumpur, 1933 (G. H. Corbett), B.M.(N.H.) ; paratypes, 1 <$, 1 $, of L. nitidula, 

 with data as holotype, Dtsch. Entom. Inst., Berlin ; paratypes, 1 J, 6 $, of 

 L. corbetti, with data as holotype, B.M.(N.H.). 



Other material. China : 24 <$, 23 $ ; Bonin Island : 1 <$ ; Formosa : iJ; 

 Thailand : 2 $ ; Vietnam : 1 $ ; Philippine Islands : 10 <$, 6 $ ; Bhutan : 

 4° <S> 35 $ ; Malaya : 10 $, 10 $ ; Sumatra : 5 <$, 2 $ ; Palau Island : 1 $. 



The range of this species extends in the north into Bhutan and China, in the south 

 into Sumatra and in the east into Malaya. This species has not been recorded from 

 Australian region. The adults have been collected throughout the year ; this 

 species has also been recorded on grasses and four specimens were found in maize 

 fields. 



This species is very close to L. oratorius (Fabricius) and L. acuta (Thunberg) but 

 can easily be separated from them by the lateral black line, which is represented by 

 two brownish black dots on the sides of the head and pronotal collar. The outer 

 side of basal antennal segment is usually black and the claspers are truncated at 

 apices, whereas in acuta the lateral black line is represented by a black dot on the 

 sides of collar and in oratorius lateral black line is absent. In oratorius claspers 

 taper to a point posteriorly and in acuta these are bifurcated at apices. 



In the original description, Dallas (1852) mentions " Head impunctate with a black 

 line on each side. Antennae, with the basal joint fulvous black externally at the 

 apex, legs pale fulvous, tibia sometimes black at the base and apex, tarsi black at 

 the apex ". The two specimens recorded by Dallas and presented by G. T. Lay can 

 not now be found in the British Museum (Natural History) and are presumably lost. 

 This species was consequently unknown to Dr. W. E. China and was not discussed 

 in his 1924 revision. A number of specimens agreeing with Dallas's description 

 have been found in the unnamed accessions in the British Museum. It is proposed to 

 designate one of these (^ B.M. 1948-548) from the type locality as neotype and this 

 has been given a neotype label. 



Stal (1873) synonymized this species with varicornis Fabricius. The synonymy 

 has been found incorrect, the two species being easily separable (see above). 



