2^24 [Xoveinber, 



** Tarsi two-jointed. 



Gt-enus Lachesilla, Westwood. 

 Male with superior wings ; female apterous, 



L.fatidica, "Westwood, Introd. fig. 59, 16. 



Unknown to me. 



Habitat : England. Perliaps Psocus lucifugus of Rambur is tlie 

 female of this species. 



The above contains all I know at present of the Psocidce without 

 ocelli. Apparently new species wall be discovered, but it is to be 

 wished that those already known may be better examined. De Greer's 

 description applies almost simply to O. pulsaforia, and also his remark 

 on the copulation. The rudiments of wings are diflBcult to distinguish, 

 and readily fall off. Neither De Greer nor Westwood have men- 

 tioned the wings, but I see them in a type received from Prof. 

 Westwood himself. 



Konigsberg, July, 1865. 



AN ESSAY TOWARDS A KNOWLEDGE OP BRITISH HOMOPTERA. 

 £Y THE BEV. T. A. MARSHALL, M.A. 



(Continued from page 105). 



Gen. PEDiopsis, Burm. 



Distinguished from Macropsis by the membrane having only five 

 cells, instead of seven or eight ; from Idiocerus by the ^ wanting the 

 laminar excrescence near the apex of the antennary seta ; and from 

 both genera by the vertex being obtusangular, instead of broadly 

 rounded. 



A. Tibise anticse et posticse puncto extus prope basin nigro. 



a. Lora a fronte disjuncta. Clypeus medio tumidus. 

 Segmentum genitale ? subtus postice triangulare. 



1. — Pediopsis nassutus, Germ, 



^ Pallide testaceus, plus minus brunneus, abdomine supra ssepe 

 nigro. Ca])ut nigro quinque-punctatum ; sc. punctis 3 in vertice supra? 

 duobusque majoribus in fronte inter antennas, nigris. Pronotum antice 

 nigro obscure 5-punctatum. Scutellum maculis 2 triaugularibus nigris. 

 Heinelytra fusco-tostacea, venis crassioribus, brunneis. $ differt colore' 



