268 



GUIDE TO CALIFORNIA INSECTS. 



body flat. Pagaronia, Bathematophorus and Errhomellus: eyes well back 

 on disk of vertex, the first with elytha longer than abdomen, the last with 

 elytra much chorter. Draeculacephala: elytra reticulate at tip. Diedrocepha- 

 la: vertex flat. 



Uhleriella: front edge of head thin and flat. Koebelia: ocelli on face. 

 Huleria and Cochlorinus: vertex much longer than pronotum, the former 

 with wings much longer than body. 



Agallia: occeli on face below edge of vertex. Pediopsis, Macropsis and 

 Bythoscopus: antennse in feeble cavities, tliefirst with thorax obliquely 

 striate, the second with thoracic margin strongly keeled. Idiocerus and 

 Pachyopsis: head wider than base of wings, the former with appendage on 

 membrane of wing. 



Homalodisca:. Oncometopia: front longitudinally impressed. Phera: head 

 somewhat triangular. 

 Actinoplerus acuminatus VanD. 

 i\j^ La bigloviae Bak. 

 californica Bak. 

 cinereaOsb. 

 inconspicuus — cinerea. 

 lyrata — per igri nans, 

 oculata VanD. 

 peregrinans Stal. 

 sanguilenta (Prov.) 

 Lihleri VanD. 

 Allygus inscriptus VanD. 



irrorellus (Stal.) 

 Athysanus irrorellus — Allygus. 

 Bathysmatophorus uhleri Bak. 



sanguilenta — Allygus. 

 Bythoscopus peregrinus Stal. 

 Chlorita tessellata — Empoasca. 

 Chloroneura abnormis — DIcraneura 

 Cicada flavescens — Empoasca. 

 lateralis — Oncometopia. 

 sexnotata — Cicadula. 

 smaragdula — Empoasca. 

 triquetra — Homalodisca. 

 Cicadula nigrifrons — Deltocephalus. 



sexnotata (Fal.) 

 Cochrorinus pluto Uhl. 

 Deltocephalus cinerosus VanD. 

 coquiUettia — Uhleriella. 

 fusconervis — nigrifrons. 

 minutus VanD. 

 nigrifrons Forbes. 

 Dicraneura abnormis Walsh, 

 cockerelli Gil. 

 unipuncta Gil. 

 Diedrocephala cythura — Versuta. 



versuta Say. 

 Draeculacephala minor — mollipes. 

 mollipes Say. 



Figure 244. Venation of a Jassid. 



reticulata Sign. 

 Empoasca albineura Gil. 



flavescens Fabr. 



robusta Gil. 



pmaraqdula (Fal.) 



tessellata Fieb. 

 Errhomenellus irroratus Ball. 

 Eutettix pannosa Ball. 



subaenea (VanD.) 

 Homalodisca coagulata — triquetra. 



liturata Ball. 



triquetra Fabr. 



magnus Bak. 



robustus Uhl. 

 Huleria quadripunctata Bali. 

 Idiocerus alternans Fitch. 



amcemus VanD. 

 Jassus acutus — Platymetopius. 



