450 



HEMIPTERA, 



TABLE OF GENERA. 



I. Posterior tibiae foliaceous. 



A. Posterior thighs slender 1. DIACTOR. 



B. Posterior thighs incrassated 2. ANISOSCELIS. 



II. Posterior tibiae simple. 



A. Antennae cylindrical ; elytra with the 

 basal portion coriaceous. 



a. Third joint of the rostrum shorter 

 than the fourth. 



1. Antennae long and slender, with 

 the basal joint as long as, or longer 

 than the head. 



a. Last joint of the antennae slen- 

 der, not thicker than the pre- 

 ceding; posterior thighs spi- 

 nous beneath 3. LEPTOSCELIS. 



|3. Last joint of the antennae 

 thicker than the preceding ; 

 posterior thighs unarmed .... 7- HYPSELONOTUS. 



2. Antennae shorter and stouter, 

 with the basal joint shorter than 



the head 4. MICROBASIS. 



b. Third joint of the rostrum as long 

 as or longer than the fourth. 



1 . First joint of the antennae longer 



than the head 6. LYBAS. 



2. First joint of the antennae shorter 



than the head 5. SERINETHA. 



B. Second and third joints of the an- 

 tennae dilated or compressed ; elytra 



entirely membranous and transparent. 8. Co PI us. 



Genus 1. DIACTOR. 



Lygaeus, p., Fab. Syst. Rh. (1803). 



Diactor, Party, Del. An. Art. 169 (1830) ; Spin. Hem. 199 (1837) 



8f Tav. Sin. Hem. 40 (1850); Am. $ Serv. Hem. 218 (1843); H. 



Sch. Wanz.ix. 245(1851). 

 Anisoscelis, p., Lap. Hem. (1832) ; Burm. Handb. ii. (1835) ; H. 



Sch. Wanz. iii. (1836). 



1. DIACTOR bilineatus. 



Lygaeus bilineatus, Fab. S. R. 213. 40 (1803). 

 Anisoscelis latifolia, Serv. Guer. Mag. Zool. i. 18 (1831). 



