648 COLEOPTERA. 



niinutelv asperate behind. Thorax a litth' broader than long, somewhat 

 contracted in front, the sides nearly straight behind, coarsely and closely 

 ])unctate. Elytra slightly broader than thorax at the base, twice its length, 

 very slightly liroader near the hind thighs, curvedly deflexed and consider- 

 ably narrowed behind, striate-punctate. 



Underside covered with coarse pale squamae. 



Length (rostrum exclusive), 2| mm. ; breadth, 1| mm. 



Rotoiti, Nelson. Another of Mr. T. Hall's discoveries. Described 

 from a single example found on the 3rd June, -1916. 



Tychanus Pascoe. Man. N.Z. Coleopt., p. 498. 



4229. Tychanus complexus sp. nov. 



Convex, subovate, rather broader near the hind thighs than elsewhere, 

 opaque ; piceous, antennae and tarsi fusco-rufous ; densely covered with 

 variegated, depressed, overlapping squamae, elytra with many small crests, 

 in addition to the more prominent ones, formed of short erect scales. 



Rostrum a fourth shorter than thorax, stout, slightly arched, sub- 

 parallel, closely punctate and nearly bare in front, with a central tawny 

 squamose ridge behind the antennae, this being bordered by more fuscous 

 squamae cause the sides to appear broadly sulcate towards the eyes. 

 Thorax slightly broader than long, its anterior half almost abruptly con- 

 tracted, base shghtly bisinuate ; disc only slightly uneven, with a slender 

 ridge along the middle of the basal portion, which becomes testaceous 

 behind ; its coarse punctation completely hidden by the scales, these are 

 principally rufo-fuscous, but there is an irregular blackish spot across the 

 middle, and the sides and apex are tawny-grey, there are also many erect, 

 short fuscous setae but no definite crests. Scutellum minute. Elytra 

 double the length of thorax, very little broader at the base, with feebly 

 porrect humeral angles, considerably yet gradually narrowed and curvedly 

 deflexed behind ; they are coarsely and interruptedly seriate-punctate ; 

 on each there are two dark elongate basal crests, and another behind and 

 between these, there are three rotundate brown ones across the summit 

 of the posterior declivity but distant from the suture, which is rufo-fuscous 

 behind, the whole posterior declivity is speckled with nigrescent and greyish 

 scales ; behind the middle of the dorsum the greyish squamae are numerous 

 but do not form a well-defined patch. Femora stout and elongate, denti- 

 form below, tarsi rather narrow. 



Scape inserted just behind the middle, rather short ; basal two joints 

 of funiculus about equally elongate and slender ; club elongate-oval, indis- 

 tinctly quadriarticulate. 



Underside covered principally with tawny scales. Hind border of 

 rostral canal extending to front of middle coxae. Metasternum very short. 

 Second ventral segment .shorter than the basal but rather longer than third 

 and fourth combined. 



The complex variegation and peculiar rostral ridge are good distin- 

 guishing features. 



Length (rostrum exclusive), 6 mm. ; breadth, 4^ mm. 



Wadestown, near Welhngton. Described from a specimen forwarded 

 by Mr. A. C. O'Connor ; 10th August, 1916. 



4230. Tychanus simulans sp. nov. 



Opaque, piceous, antennae and tarsi fusco-rufous ; covered with depressed, 

 overlapping, and erect scales, these latter nigrescent, the former variegated 



