Mr. Walker's descriptmis of ChalciJites/rom Coquimho. 185 



Closterocerus Pelor, JVfas. Viridis, abdomen purpurcian, antenna; ni- 

 grce, pedes jlavo-fulvi, femora 7iigra, alcc sublimpidee. 



Corpus angustuin, sublineare, convexum, viride, nitens, scitissime squa- 

 ineiini, parce liirtum : caput transversuui, brevissimuni, iuipiessum, tliorace 

 pauUo latius ; vertex latus ; frons ahrupte declivis : oculi picei, lucdiocres, 

 non extantes : antennae nigra?, subfiliibrmes, hirtoe, gracilcs, tliorace non 

 longiores ; clava fusiformis, acuminata, articulo praecedente plus duple lon- 

 gior : thorax ovatus : prothorax brevissimus, supra vix conspicuus : nieso- 

 tlioracis scutum longitudine latius ; parapsidum sutur;e bene determinatie, 

 postice approximatte; scutellum subconicum : metathorax niediocris, decli- 

 vis, obconious : petiolus brevissimus : abdomen sublineare, depressum, keve, 

 purpureum, basi viride, tliorace pauUo brevius et aiigustius : pedes tulvi, 

 graciles, suba?quales ; coxfe nigra; ; femora nigra, apice fulva ; tarsi flavi, 

 apicc fusci: ah« sublimpida; ; squamulae picete ; nervi fulvi ; nervus ulnaris 

 humerali duplo loiigior, radialis vix ullus, cubitalis brevissimus in akc dis- 

 cum abrupte declivis; stigma niinutum. (Corp. long. lin. 4^; alar. lin. ].) 



XXXI. — Descriptions of Chalcidites discovered in Coquimho 

 by C. Darwin, Esq. By Francis Walker, Esq., F.L.S. 



Lamprotatus Tnbero, Fem. Ater, abdomen ni<jro-j)urj)U)-eum, antenna; 

 fuscce, pedes ftdvi, femora picea, alee Umpidce. 



Corpus breve, robustum, convexum, atrum, nitens, scitissime r.quanieum, 

 parce liirtum : caput transversum, breve, tliorace latius ; vertex latus ; frons 

 impressa, abrupte declivis : oculi picei, mediocres, non extantes : antenna; 

 fusctC, extrorsum crassiores, tliorace non longiores; articulus 1"' "iger, 

 longu?, gracilis ; 2"' piccus, longicyatliiformis ; 3"* et 4"* minimi ; 5"^ et 

 sequentes usque ad 10"" breves, approximati; clava conica, acuminata, ar- 

 ticulo 10° duplo longior : thorax ovatus: prothorax transversus, niediocris, 

 antice angustus : mesothoracis scutum longitudine multo latius ; parapsidum 

 sutur^B sat bene determinatae ; scutellum subconicum ; paraptera et epimera 

 magna : metathorax magiius, obconicus, declivis : petiolus sat longus : ab- 

 domen subrhombiforme, Iwve, nigro-purpureum, supra planum, subtus ca- 

 rinatum, thoracis dimidio vix longius : pedes fulvi, simplices, subaequales ; 

 coxse nigrae ; femora picea, apice basique fulva ; tarsi apice fusci : alas lim- 

 pidae; squamulae piceae ; nervi fulvi; nervus humeralis ulnari multo lon- 

 gior, radialis ulnari vix brevior, cubitali multo longior; stigma minutuin. 

 (Corp. long. lin. ]^; alar. lin. 2^.) 



Var. /3. Antennis articulus 1"* viridis : abdomen aeneum : femora nigra; 

 tibicE piceae. 



Lamprotatus? Nasvolus, I\Ias ? Viridis, antenna: picecs, pedes piceo- 

 virides, tarsi flavi, alee Umpidce. 



Corpus angustum, convexum, viride, nitens, scitissime squameum, parce 

 hirtum : caput transversum, breve, thorace latius ; vertex latus ; frons im- 

 pi-essa, abrupte declivis: antenuEe subfihformes, graciles, piceae, thorace 

 paullo longiores; articulus 1"* longus, linearis, nigro- viridis; 2"*^ longicya- 

 thiformis ; 3"' et 4'"* minimi; 5"' et sequentes usque ad lO"" breves, ap- 

 proximati; clava longiconica, acuminata, articulo 10° plus duplo longior : 

 thorax ovatus : prothorax transversus, niediocris, antice angustus : meso- 

 thoracis scutum longitudine latius; parapsidum suturjB bene determinata;, 

 postice approximatae ; scutellum subconicum : metathorax mediocris, obco- 

 nicus, declivis : abdomen ademptum : pedes virides, graciles, subaquales ; 

 trochanteres picei ; genua flava ; tibiae piceo-virides ; tarsi flavi, apice fusci : 

 alae linipidae ; squamulre piceae ; nervi fusci ; nervus humeralis ulnari multo 



