222 Rev. H. Clark’s Notes on the Genus Hydaticus. 
(punctis confertis, minutis, et ineequaliter dispositis), quoad 
colorem nigris, apud basin (sed baseos marginem haud om- 
nino attingens) macula subtriangularis ante medium elytrorum 
inter strias 14 et 24™ sese dirigit, vitta etiam marginalis a 
humeris propemodum apicem attingit: corpore subtus nigro ; 
pedibus flavis, posticis fuscis ; antennis flavis. 
Long. corp. lin. 6; lat. lin. 3. 
A distinct species from northern India, an example of which I 
received some years ago in the Gory Collection. It is allied to 
viltalus, Fab., but besides being of a pattern which it seems almost 
impossible to place as an extreme variety of that variable species, 
it is manifestly narrower and more constricted in form. 
21. H. mgro-vitiatus, n. sp. 
Ovalis, convexiusculus, sat latus, et ad latera nonnihil rotun- 
datus: thorace leviter punctato et ad latera apud basin re- 
ticulato vel quasi irregulariter acuducto, quoad colorem 
testaceo-rufo, marginibus ad apicem et basin tenuiter nigris ; 
scutello triangulari, levi, nigro; elytris undique punctorum 
seriebus duabus (punctis raris et aliquando obsoletis), om- 
nino subtilissimé et crebré punctatis, testaceis vel rufo- 
testaceis; vitt& suturali alteraque (vel duabus approxima- 
tis) undique nigris; inter vittas et margines elytra quast 
nigro-irrorata maculis subtilissimis sparguntur; he maculae 
autem non confuse ageregate, sed plus minus ordinibus 
dispositze sunt: corpore subtus, pedibusque rufo-fuscis. 
Long. corp. lin. 5; lat. lin. 23. 
Allied to H. Leander of South Europe, and, at first sight, only 
a variety of that species. The only example that I have seen was 
received by Mr. Wallace from Japan, and is in my collection. 
DESCRIPTION OF PLATE XIV. 
Fig. 1. Hydaticus Bakewellii, Clark. 
Fig. 2. rp Ussherii, Clark. 
Fig. 3. oe Bowringii, Clark. 
Fig. 4. 45 decorus, Klug. 
Fig. 5. 5 histrio, Clark. 
Fig. 6, $3 vittutus, Fab., var. 
