186S.] 227 



Fab., Rhyng., p. 84. Flor., R. L. 2, p. 85. B. signifera, Boh., 

 Ofv. 1845, p. 164 : palliata, Boh. Handl. 1847, p. 56 ; anceps, 

 H. Sch., Nom. Ent. p. 65 ; pictipennis, Curt., B. E. 657, No. 7 

 (forma macropt.) 



This elegant little species is very common on rushes in swampy 

 fields throughout the country. But, among hundreds which I have seen, 

 only one, found in Birch Wood, belongs to the macropterous variety. 

 Either form may be readily known by the distinct black dots upon the 

 white portion of the hemelytra. 



h. Hemelytrorum nervi nunquam maculis discoloribus notati : ali- 

 quando obsoletius impresso-punctati. 



* Frons apice, scutellum basi, nigro bimaculata. 



7. — Delphax nasalis, Boh. 



I. — Forma brachyptera. Testaceus, pallidus. Frous supra ipsum 

 clypeum utriuque nigro maculata. Oculormn orbita postice, scutelli 

 maculae 2, macula etiam laterum supra coxas medias, et alia in coxis 

 posticis, nigra. Abdominis segmenta basi supra plus minus infuscata. 

 Tarsi apice nigri. ^ ? . 



II. — Forma macroptera. Hemelytra hyalina, nervis pallide brun- 

 neis ; nervus marginalis extus,basi excepta, fuscus. Scutellum aliquaudo 

 nigrum. Abdomen supra nigrum, subtus testaceum, lateribus nigro 

 maculatum, vel totum nigrum, segmentis testaceo marginatis. ? . 



Var. a. — Niger, capite pedibusque testaceis. Frons baud nigro 



maculata. ? . Long, c^ 1^ ; $2 lin. 



Boh., Handl. 1847, p. 41. Stal., Ofv. 1854, p. 197. D miita- 

 hilis. Boh., Handl. 1847, p. 43. D. hicarinata, H. Sch., D. Ins. 

 143,21. 



The frontal cariuse are very feebly expressed, or entirely absent, 

 except towards the vertex, The black spots above the clypeus are 

 sometimes confluent, and sometimes wanting. The apex of the scu- 

 tellum is occasionally black. 



Not common, but found in Darenth Wood in July (the brachyp- 

 terous 9 only). 



** Frons et scutellum hand nigro bimaculata. 



t Frontis carinse mediae 2, supra ipsum clypeum conniventes. 



8. — Delphax albomarginaius, Curt. 

 I- — Forma hrachyptera. Niger, nitidus ; capite, pronoto, scu- 

 iello, hemelytrorum humeris, testaceis. Carinas frontales, pronoti basis 



