190 L. Fairmaire. 



Genre HYDATIGUS. 



1. H. SOBRINUS Aube, Hydroc, 156. —Long. 12 mill. — Ovalis, vix 

 ellipticus, depressiusculus ; prothorace testaceo, in medio transversim 

 nigro maculato ; elytris testaceis, maculîs minimis rotundatis plus minusve 

 confluentibus, fascia transversa paulo ultra médium alteraqiie vix cons- 

 picua ad apicem nigris ornatis; corpore subtus testaceo rufo. d*, protho- 

 race leevi ; $, irregulariter utrinque impresso. — Madagascar (Gh. 

 Coquerel). 



2. H. CONGESTUS Klug, Ins. Madag., 138. — Long. 10 mill — Ovatus, 

 sat convexus, testaceus, capite vitta basait et macula média arcuata nigris, 

 prothorace antice posliceque fusco marginato, elytris punctis et vermi- 

 culis nigris, ante médium in maculam transversam et postice in maculam 

 obliquam , ad suturam dilatatam confluentibus , postice plus minusve 

 maculosis, margine externo testaceo ; segmentis abdominalibus basi infus- 

 catis et utrinque fusco macula tis; prothorace laevi, brevi, basi fere recto; 

 elytris ovatis, postice haud dilalatis, utrinque lineis 3 punctatis, punctis 

 val de distantibus. — Madagascar (Gh. Goquerel). 



3. H. DORSiGER Aube, Hydroc, 193. — Long. 13 1/2 mill — Oblongo- 

 ovalis, convexiusculus, prothorace testaceo, postice in medio nigro; elytris 

 testaceis, punctis minimis rotundatis sparsis ad latera maculaque magna 

 elongato ovali communi in sutura, nigro notatis; corpore subtus ferrugi- 

 neo. é, prothorace Isevi ; ?, irregulariter impresso. — Madagascar (Gh. 

 Coquerel). 



û. H. RUFULUS Aube, Hydroc, 199. — Long. 10 1/2 mill. — Oblongo- 

 ovalis, convexiusculus, prothorace testaceo, immaculalo, elytris testaceis, 

 cum punctis minimis rotundatis nigris, plus minusve confluentibus fasciis- 

 que duabus transversis umbrosis vix conspicuis una paulo ultra médium, 

 altéra ante apicem; corpore subtus ferrugineo. c?, prothorace lœvi; $, 

 irregulariter utrinque vix impresso. — Madagascar. 



5. H. Petitii Aube, Hydroc, 20/i. — Long. 16 à 17 1/2 mill. -^ 

 Oblongo-ovalis, convexus ; prothorace nigro, ad latera late luteo ; elytris 



