46o Memoirs on the Coleoptera 



Calandrinus Lee. 

 The bodily form is here very different from that of the two pre- 

 ceding genera, being oblong-suboval, compact and very convex, 

 and the mandibles are peculiar; they are not decussate, but indi- 

 vidually prominent, and are strongly uni- or bidentate both ex- 

 ternally and internally. The beak is rather long and smooth, the 

 antennae inserted near the middle and notably slender, the anterior 

 coxae separated by about their own width, the prosternum not 

 sexually modified and the claws free and slender. The vestiture 

 beneath is rather even though sparse, but on the elytra there are 

 aggregations of pale scales, generally visible at the sides basally and 

 subapically, together with other unevenly distributed darker 

 squamules. The sexual characters seem to be extremely feeble. 

 The following is the narrowest known species : 



Calandrinus angustulus n. sp. — Elongate, constricted at the junction 

 of the prothorax and elytra, very convex, shining and uniform pale red- 

 brown throughout; sparse pale squamules of the pronotum rather more 

 numerous but not close toward the sides; elytra with a spot of white 

 scales at the sides basally and another near the apex, also narrowly along 

 the suture before the middle, the scales brown, more linear and sparse on 

 the disk basally, the surface elsewhere nearly glabrous; squamules 

 beneath small, sparse, slender and yellowish, lying within the notably 

 coarse punctures; beak (d^) long, slender, smooth, cylindric, evenly and 

 moderately arcuate and half as long as the body, the antennae only 

 slightly beyond the middle, or ( 9 ) nearly similar but with the antennae 

 at or just visibly behind the middle; prothorax as long as wide, the sides 

 parallel, strongly and subevenly arcuate, more inflated before the middle, 

 the apex constricted and three-fourths as wide as the base, the basal 

 lobe subobsolete; punctures moderately coarse, well separated; smooth 

 median line entire, widest centrally; scutellum very small, nude; elytra 

 two-fifths longer than wide, at the middle slightly wider than the pro- 

 thorax, one-half longer, the sides parallel and rather strongly arcuate, 

 gradually converging behind about the middle to the somewhat narrowly 

 rounded apex and feebly sinuate near apical fourth; humeral prominences 

 completely wanting; striae moderately coarse, abrupt but only moder- 

 ately deep, the intervals not quite twice as wide as the grooves, each with 

 a single series of small and well separated punctures. Length (cf 9 ) 

 2.6-2.7 rnm.; width 0.9-1.0 mm. New Mexico (Jemez Springs), — 

 Woodgate. Two examples. 



This species is not closely allied to ohsoletus, grandicollis or 

 insignis, being very much narrower and more constricted at the 

 waist than in any one of them. 



