On Aquatic Carnivorous Coleoptera or Dytiscide. 771 
- belegten, kleiner der Oyb. levigatus, Fab. welchen die hier in rede stehende art auch in der Firbung und 
Zeichnung sehr thnlich ist.” 
Two males from Madagascar, three females from Zanzibar. 
This is probably near ©. filicornis (No. 1129), and may possibly be C. marginicollis, Boh, (No. 
1280).—D. 8. 
1276. Cybister dejeani, Aube, Spec. p. 64. India, (Malabar). 
“Ovatus, postice dilatatus, ad apicem paulo oblique rotundatus, convexiusculus, nitidus, supra et 
infra nigro-piceus ; labro, epistomo, thoracis lateribus vittaque longitudinali, simplici, versus elytrorum 
marginem luteis; elytris extrorsum coriaceo-rugulosis ; pedibus anticis testaceo-luteis, posticis nigro 
piceis.” 
“ Mas : elytris inimpressis. Yemina: striis minimis irregularibus ; thorace dense reticulato-strigoso 
Long. 20 m.m., larg. 11 m.m.” 
[A description follows, 1. ¢.] 
1277. Cybister goryi, Aubé, Spec. p. 81. Australia. 
“ Oyatus, postice late dilatatus, ad apicem oblique rotundatus, convexiusculus, nitidus, supra nigro-piceus,. 
infra ferrugineus; labro, epistomo, thoracis lateribus vittaque longitudinali, simplici, in elytrorum 
margine luteis ; pedibus anticis testaceo-luteis, posticis ferrugineis. 
Mas et femina: thorace et elytris levibus. Long. 184 m.m., larg. 10 m.m.” 
[A description, 1. ¢., follows this diagnosis. | 
This species I should think is allied to Dytiscus atratus (No. 1100), but it appears to be paler be- 
neath.—D. 8. 
1278. Cybister insularis, Hope, Proc. Ent. Soc. 1842, pp. 39 and 47. Tasmania. 
“ Niger, capite integro convexo, thorace sub lente subtilissime punctato, marginibus exterioribus flaves- 
eentibus ; elytris nigris flavo-marginatis, disco binis lineis punctorum haud fortiter impresso ; corpore infra 
nigro nitido, pedibus quatuor anticis flayo-ornatis, posticis atro-piceis. Long. lin, 8, lat. lin. 43.” 
This is probably a Homeodytes near Dytiscus atratus (No. 1100).—D. 8. 
1279. Cybister jordanis, Reiche, Ann. Soc. Ent. Fr. 1855, p. 637. Syria. 
<< Mas et femina : thorace elytrisque levibus. Long. 33-35 m.m, (15-16 lig.) lat. 17-18 m.m. (8-83 lig.) 
“Ovalis, postice dilatatus, ad apicem subrotundatus, minus convexus, nitidus ; supra nigro-viridis infra 
testaceo-luteus ; palpis, antennis, mandibulis, labro, epistomo, thoracis lateribus, vittaque longitudinali 
apice subhamato-dilatato elytrorum latera versus, testaceis ; pedibus testaceis, tibiis intermediis posticisque 
fuscescentibus.” 
[This is followed by un expanded description. | 
“La femelle entigrement lisse comme le male, sur le corselet et les élytres, n’en differe que par une 
plus grande dilatation du corps, au dela du milieu.” 
< Des eaux de Jourdain.” 
“Cette espéce resemble, pour Ja coloration, au mas du Cyb. reeselii, mais sa forme est plus allongée 
et moins elliptique.” 
Ti is doubtful whether this be a distinct species from D. reeselii, (vide Nos. 1169 and 1170).—D. 8. 
4 RANS. ROY. DMR. SOC., N.S., VOL. IL 5G 
