On Aquatic Carnivorous Coleoptera or Dytiscida. 819 
1472. Tlybius ovatus, Hoch., Bull. Mose. XLIV, p. 237. Russia. 
“Perfecte ovalis, leviter convexus, niger, supra vix eneo-micans, elytris apicem versus oblique sub- 
truncatis, lineis duabus rufo-ferrugineis fenestratis. Long. 5 1.” 
“ Am nacbsten steht diese art dem I. subseneus, Er., ist aber schwarz, mit viel schwiicheren griinlichen 
schimmer als jener. Seine umriss unterscheidet sie von allen mir bisher bekannten arten; diese 
ist ein vollkommenes ovale, dessen breiteste stelle etwas hinter der mitte der Fliigeldecken fiillt.” 
1473. Llybius suffusus, Crotch, Tr. Am. Ent. Soc. IV, p. 411. North America. 
G3 Closely resembling the two preceding (‘.e., C. angularis, Lec., I. pleuriticus, Lec.), but more allied to 
I. pleuriticus by the less coarsely punctate tibie ; colour brassy, sculpture very fine, the whole margin of 
the elytra broadly and irregularly ferruginous, hiding the usual pale spots. L. +44 inch. Indian 
Territory.” : 
A female individual recently sent me by Dr. Horn indicates this as a very distinct species, whose 
position is, probably but not certainly, near D. fuliginosus (No. 792), and I. meridionalis.—D. 8. 
1474. Laccophilus adspersus, Boh., Ins. Caff. I, p. 246. Caffraria. 
“ Oblongo-ovalis, convexiusculus, postice angustior, apice oblique rotundatus, testaceus, nitidus ; 
prothorace immaculato, basi breviter acute producto ; elytris subtiliter, crebre nigro-reticulatis, lateribus 
anguste pallidis. Long. 4, lat. 2} m.m.” Caffraria interior. 
[This diagnosis is followed, 1. c., by « long description. | 
I can form no opinion as to the species, except that it is unknown to me.—D. 8. 
1475. Taccophilus baeri, Regt., Ann. Soc. Fr. 1877, p. Ixxviii. Manilla. 
“ Ovalis, postice vix attenuatus ; capite testaceo, lineis duabus transversis et incurvatis griseo-notato ; 
prothorace testaceo, antice nigro-infuscato, postice linea transversa et leviter incurvata nigro-notato ; 
elvtris fusco-nigris, margine, lata ad basin transversa vitta, latissime apice magnam maculam inclaudente 
et spe suturali linea flavo-ornatis ; subtus fusco-niger, pedibus testaceis, posticis ad tarsum infuscatis. 
Long. 3} m.m.” 
This species and L. transversalis are, it would appear, remarkable on account of the dark marks on 
the head.—D. S. 
1476. Laccophilus cayennensis, Aubé, Spec. p. 434. Cayenne, Guadeloupe. 
““Ovatus, apice rotundatus, depressiusculus, rufo-testaceus ; thorace postice in medio breviter acute 
producto ; elytris creberrime nigro-irroratis, vitta irregulari transversa ad basin, maculis irregularibus ad 
Jatera et apicem lineolisque brevibus in disco, pallido-ornatis. Long. 34, larg. 2} m.m.” 
[A description, 1. ¢., follows this diagnosis. | 
1477. Laccophilus decoratus, Boh., Eug. Res., p. 20. Manilla. 
“ Oblongo-ovalis, postice attenuatus, leviter convexus, subtus ferrugineus, nitidus; antennis capite 
palpis, pedibusque flavo-testaceis ; prothorace dilute flavescente, antice posticeque medio leviter infuscato, 
elytris piceis, luteo-irroratis, fascia lata basali, altera inequali infra medium introrsum abbreviata 
apiceque dilute flavescentibus. Long. 3}, lat. 1? m.m.” 
“ Caput parum convexum, sub-leve, flavo-testaceum, nitidum. Palpi et antennz flavo-testacea. Oculi 
convexi glauci. Prothorax longitudine triplo latior, apice medio subtruncatus, utrinque leviter sinuatus, 
basi utrinque suboblique truncatus, medio vix triangulariter productus, angulis anticis antrorsum modice 
prominulis, sub-acuminatis, posticis fere rectis ; superne leviter convexus, vix punctatus, dilute flavescens, 
basi apiceque linea transversa, utrinque valde abbreviata, dilute fusca ornatus, Scutellum nullum. 
TRANS, ROY. DUB. SOC., N.S., VOL. IL. 5N 
