On Aquatic Carnivorous Coleoptera or Dytiscidie. 405 



Mas, tarsis anterioribus sat latis, unguiculo interne sat abbreviato et incrassato. 



This pretty little species is readily distinguished from its allies by the extreme 

 minuteness of the fovea on the middle of the thorax, and by the markings of the 

 elytra. The elytra are pale yellow, with the suture narrowly black, and with a 

 black line near the suture which reaches neither to the base nor the ajiex, and is 

 thickened at its termination, while outside this line are two black spots. I have 

 seen only two males. 



Persia, MesoiJOtamia, (Dr. 0. Millingeu). 203. 



414. Coelambus orthogrammus, n. sp. — Oblongo-ovalis, sat elongatus, sine 

 pubescentia, nitidus, testaceus, abdomine, pectore elytrisque lineis elongatis nigris ; 

 prothorace medio foveola minuta ; elytris basi obsolete, apicem versus crebre 

 subtiliter punctatis ; corpore subtus fere opaco, coxis posterioribus parce subtiliter 

 punctatis. Long. 41, lat. 21 m.m. 



This species is very much smaller than D. parallelogrammus (No. 416), and is 

 more finely and sparingly punctured ; it resembles Hydroporus lernteus extremely 

 but is broader in proportion to its length, and more finely and sparingly punctured. 

 The only individual I have seen is a female. 



Persia. 202. 



415. Hydroporus lernieus, Schaum, M.C. — Oblongo-ovalis, elongatus, angustulus, 

 sine pubescentia, nitidus, testaceus, abdomine pectoreque, thoracis macula media 

 elytrisque lineis elongatis nigris ; prothorace medio foveola minuta ; elytris pone 

 basin dense, basi insequaliter (punctis majoribus parcis), punctatis ; corpore subtus 

 subopaco, coxis posterioribus sat crebre punctatis. Long. 41, lat. 21 m.m. 



Mas, tarsis anterioribus et intermediis sat dilatatis, anterioribus unguiculo interne 

 minuto, crasso, valde curvato. 



Very closely allied to Dytiscus parallelogrammus (No. 416), but smaller and 

 narrower, and with the elytra at the base only bearing a few large punctures. 

 According to Schaum, the female is shining like the male. 



Greece, Egypt, Syria. 201. 



416. Dytiscus parallelogrammus, Ahrens, Hydroporus parallelogrammus, M.C. — 



Oblongo-ovalis, elongatus, sine pubescentia, testaceus, abdomine jiectoreque, thoracis 



macula media elytrisque lineis elongatis nigris ; prothorace medio foveola parva ; 



elytris dense punctatis, punctatura basi intequali, punctis majoribus parcis ; corpore 



subtus fere opaco, coxis posterioribus sat crebre sed sub-obsolete punctatis. Long. 



4?, lat. 21 m.m. 



3 6a 



