FERONIDAB 277 



of the thorax, and therefore belong to the same section. These setae, how- 

 ever, are often displaced when the insect has to be freed from dirt. 



J. Length, 14 mm. ; breadth, 4 J mn\. 



Opotiki. A single specimen, discovered by Mr. F. R. Field, whose name 

 has been given to it. 



Group ZoLiNi. 



3689. Zolus subopacus sp. iiov. ZoJufi Sharp, Man. N.Z. Toleopt., 

 p. 1000. 



Oblong-oval, slightly convex, rather dull ; fusco-niger, the forehead, 

 mandibles, elytral margins, and basal joint of antennae piceo-rufous, remain- 

 ing articulations, tibiae, and tarsi more or less infuscate-red, femora darker, 

 palpi fulvous. 



Head, including the large moderately prominent eves, nearly as broad 

 as front of thorax, with a few feeble rugae, the elongate impression near each 

 eye is not deep, and the plica obtuse, the forehead has 2 setigerous punctures 

 and a small median fovea. Thorax subquadrate, a fourth broader than 

 long, base truncate, apex slightly and widely emarginate ; the sides very 

 distinctly and evenly margined, a little wider before the middle than else- 

 where, gently curvedly narrowed in front, nearly straight and only slightly 

 narrowed behind, posterior angles rectangular ; median groove not abbre- 

 viated but rather slender, basal foveae large, with a distinct plica between 

 each and the side, there are no punctures, only a few obsolete longitudinal 

 striae near the base and short transverse ones on the middle of the disc. 

 Scutellum broad. Elytra oviform, widest near the middle, a good deal but 

 not abruptly narrowed posteriorly, they are more than double the length 

 of the thorax and a little broader than it is at the base ; they are feeblv 

 striate, quite obsoletely towai'ds the sides, with almost quite flat iaterstices, 

 the 3rd are finely tripunctate, the suture is slightly convex, the apical carinae 

 are distinct, and the marginal channels well developed, there are 4 lateral 

 punctures behind each shoulder and about the same number towards the 

 extremity. 



Antennae pubescent from the middle of the 3rd joint onwards, and 

 extending to just beyond the middle femora. Tai'si witl: fine yellow setae 

 above. 



The subopaque surface, impunctate and subquadrate thorax, and feebly 

 impressed elytral striae distinguish this from the other species. 



9- Length, 7J mm. ; bre?.dth, 3 mm. 



Ben Lomond, Otago. A single specimen found by Mr. A. Philpott, of 

 Invercargill, early in December, 1912. 



Group Hydrophilidae. 

 Gitocyloma gen. no v. 



Body oblong-oval, only moderately convex. Labrum invisible. Eyes 

 slightly prominent, finely faceted. Antennae 8-articulate, basal joint elon- 

 gate, fully the length of the following four united, 2nd oblong, 3rd nearly 

 as long as 2nd but more slender near its base, 4th small and transverse, 5tli 

 also short but twice as broad ; club large, 3-jointed, laxly articulated. Maxil- 

 lary palpi moderately short, their basal joint concealed from above, 2nd 

 large and clavate, the next twice as long as broad, thickened towards the 

 extremit}', terminal of nearly the same length and thickness as its predecessor. 



Mentum transversely (piadrate, subtruncate in front, medially depressed. 

 Antennal cavities large, extending from the fiont of and alongside the 



