ON THE SPECIES OF PLATYGASTER. 263 



convexum : mesothoracis parapsidum suturae conspicuse : meta- 

 thorax abdominisque segmentum 1"™. rugosa, obscura : abdomen 

 glabrum, tboracis latitudine et longitudine ; segmentum 2"™. basi 

 scite sulcatum ; S""". et sequentia pilis nonnullis albis birta : pedes 

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

 picei : alae limpidse, mediocres ; squamuloe nigro-piceae. 



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

 multo longius, apice acuminatum. (Corp. long. lin. g — | ; alar, 

 lin. 1—1.) 



Var. /3. — Mas, protibias apice et protarsi rufo-picea. 



Far. y. — Fern, tarsi picei ; protibias apice et protarsi rufa, bi 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, alee minores. 



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

 transverse sulcatum : oculi ocellique rufo-picei : antennae nigrae, 

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

 mesotboracis parapsidum suturae vix conspicuog : metatborax 

 abdominisque segmentum 1"™. scabra, obscura, utrinque pilosa : 

 abdomen tborace paullo longius ; segmentum 2"'". basi scite 

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

 pedes rufo-picei coxis nigris : alae albo-limpidse ; squamulae picese. 



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

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



Va7-. jS. — Mas, protibiae et protarsi flava, hi apice et illae supra picea. 



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



Far. r. — 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 1"^ basi 2"^. que 



