ON THE SPECIES OF PL ATYG ASTER. 263 



convexum : mesothoracis parapsidum suturae conspicuoe : meta- 

 thorax abdominisque segmentum l um . rugosa, obscura : abdomen 

 glabrum, thoracis latitudine et longitudine ; segmentum 2 um . basi 

 scite sulcatum ; 3 um . et sequentia pilis nonnullis albis hirta : pedes 

 nigri ; spinae tibiales rufae ; genua et tarsi nigro-picea ; protarsi 

 picei : alas limpidae, mediocres ; squamulae nigro-picese. 



Fern. — Mari similis : antennae paullo breviores : abdomen thorace 

 multo longius, apice acuminatum. (Corp. long. lin. \ — § ; alar, 

 lin. |-1.) 



Far. /3. — Mas, protibiae apice et protarsi rufo-picea. 



Far. y. — Fern, tarsi picei ; protibiae apice et protarsi rufa, hi apice et 

 illae supra picea. 



Found in Ireland, by Mr. Haliday. Common in summer 

 and autumn ; near London. September ; Cumberland. 



Sp. 88. Plat. Manto. Mas et Fem. P. nigro minor angus- 

 tior, aim minores. 



Mas. — Ater, nitens, laevis, fere glaber : caput parum nitens, postice 

 transverse sulcatum : oculi ocellique rufo-picei : antenna? nigra?, 

 corporis dimidio multo longiores ; articulus 2 US . apice fuscus : 

 mesothoracis parapsidum suturae vix conspicuae : metathorax 

 abdominisque segmentum l um . scabra, obscura, utrinque pilosa : 

 abdomen thorace paullo longius ; segmentum 2 um . basi scite 

 sulcatum : pedes nigri ; trochanters, genua et tarsi picea ; pro- 

 pedes rufo-picei coxisnigris : alae albo-limpidae ; squamulae piceae. 



Fem. — Mari similis : profemora nigra ; antennae breviores et graci- 

 liores ; abdomen paullo latius. (Corp. long. lin. | — \ ; alar. lin. 



h-h) 



Far. (3. — Mas, protibiae et protarsi flava, hi apice et illae supra picea. 



Far. y. — Mas et Fem. tarsi fiavi, apice picei. 



Far. fi. — Fem. meso- et metapedum genua et tarsi nigro-picea. 



From spring to autumn; on grass in fields; near London. 

 September; Isle of Wight. New Lanark; Scotland. Found 

 in Ireland, by Mr. Haliday. 



Sp. 89. Plat. Strato. Mas et Fem. Prcecedente gracilior, 

 alee angustiores. 



Mas. — Ater, nitens, laevis, fere glaber : oculi ocellique nigro-picei : 

 antennae nigrae, corpore paullo breviores ; articuli l us . basi 2 US . que 



