226 ON THE SPECIES OF PI-ATYGASTER. 



suturas vix conspicuae : scutellum, metathorax et petiolus dense; 

 albo-hirta : abdomen nitidum, laeve, glabrum ; segmentum 2" 

 ejus dimidio longius ; 3^"". 4"™. et 5"™. brevia ; 6*^'. multo 

 longius : pedes picei ; coxae nigrae ; tibiae basi et propedum 

 femora tibiseque omnino piceo-rufa ; tarsi rufi, apice picei ; meta- 

 tarsi picei ; articiilus 1"^ basi rufus : alse sublimpidse ; squamulaei 

 nigro-piceae. (Corp. long. lin. | ; alar. lin. 1|.) 

 Far. /3. — Femora nigra ; profemora picea ; metatarsi rufi, apice picei. 



June ; on grass in fields ; near London. Isle of Wight. 



Sp. 11. Plat. Myles. Fem. Abdomen quam hujus sectionisi 

 prcecedentibus brevius. 



Ater, nitens, laevis, fere glaber : caput thorace latius : oculi nigro- 

 picei : antennae nigro-piceae, corporis dimidii vix longitudine ; 

 articulus 1^^. basi flavus : thorax angustus : mesothoracis parap- 

 sides scuto in unum confusae : scutellum abdomen non attingens, 

 apice fuscum : metathorax abdominisque segmentum 1"™. pilis 

 albis dense hirta : abdomen ovatum, nitidissimum, thorace latius 

 vix longius : pedes nigro-picei ; trochanteres pallidiores ; tibiae 

 basi rufae ; tarsi rufi, apice picei ; protibias rufag, supra fusco 

 vittatas : alae albo-limpidae, angustae ; squamulse piceae, optima 

 determinatse. (Corp. long. lin. i ; alar. lin. |.) 

 Var. ft. — Protibiae piceae, apice subtus rufae. 



Found at Holywood, in Ireland, by Mr. Haliday. 



7. Mas. — Antennae filiformes ; articulus 2^^ parvus, subrotundus ; 

 3"^ minimus ; 4^^ magnus, dilatatus, 3°. approximatus ; 5"^ 

 parvus ; 6"^. et sequentes magni, longi-ovati, discreti, subagquales ; 

 10"s. acuminatus, 9°. paullo longior : thorax longi-ovatus, angus- 

 tus, utrinque abrupte declivis : mesothoracis parapsidum suturae 

 vix conspicu^ ; scutellum abdomen non attingens : metathorax 

 abdominisque segmentum 1"™. bene determinata : abdomen longi- 

 ovatura, apicem versus latius ; segmentum 2^™. ejus plus dimi- 

 dium occupans ; 3"™. et sequentia brevia, subaequalia. 



Sp. 12. Plat. Seron. Mas. Ater, antenna nigro-picece, 

 pedes rufi, metapedum femora et tibice apice picea, alee 

 suhfusccB. 



Ater, longus, gracilis, nitidus, laevis, parce pubescens : antennae 

 nigro-picete, corpore paullo breviores ; articulus 1"^ rufus : oculi 

 ocellique nigro-picei : metathorax abdominisque segmentum 1"'". 



