HEMIPTEBA HETEROl'TEKA. 



25 



1. Blissida. 



Fam. 1. LYGiEID^E, C. H. 531. 



Lygeides and Rhyparoohromides, Serville— Lygaeina, Lygaeidae, Rhypa- 

 rochromida:, Phygadicidae, Henestaridae, and Cymidse, Douqlat and 

 Scott. 



Prof. Stal has divided this family into ten subfamilies : — 

 A. Abdominal segments nearly equally long. 



a. Fore acetabula remote from the hind border 



of the prostethium. ... 



b. Fore acetabula on the hind border of the 



prostethium. 

 * All the ventral incisures extending to the 



sides, 

 f Fore wings not wholly dilated, nor broader 



than the abdomen. 

 { Hook emitted by the subtensor vein. 

 § Prosternum and mesosternum with no distinct 



furrow. 

 X Fore femora not or hardly thicker tban the 

 hind femora, unarmed, or thinly spinulose. 

 o Membrane furnished with an areolet in the 

 interior basal angle. 

 -+ Areolet of the membrane emitting two veins. 

 H — i- Areolet of the membrane emitting one longi- 

 tudinal vein. - 

 oo Membrane with no basal areolet. 

 X X Fore femora much thicker than the hind 

 femora, with many spines beneath. 

 §§ Prosternum and mesosternum with a distinct 



furrow. - 

 11 Hook emitted by the connecting vein, 

 ff Fore wings wholly dilated and broader than 



the abdomen. - 

 ** Third ventral incisure not extending to the 



sides, near which it is recurved. - 

 B. Abdomen contracted at the base; second and 

 third segments very loug. 



2. Lyg^ida. 



3. Malcida. 

 4. Geocorida. 



5. Paohygronthida. 



- 6. Cryptorhamphida. 

 7. Phyuaoicida. 



8. Cymida. 



9. Rhyparochromida. 



10. CoLOISATHRISTIDA. 



The same author has divided these subfamilies into genera, at follows: — 



I. Blissida. 



A. Body slightly depressed. Fore legs much incras- 



sated ; tibia; with many spines, much shorter 

 than the femora. - 



B. Body considerably depressed. Fore femora and 



fore tibia; nearly equally long, the latter 

 neither incrassated nor spinose. 

 a. Middle legs very remote from each other. Hind 



femora much incrassated and compressed. - Bochrus. 



e 



Chelochirus. 



