32 MEMOIRS ON THE COLEOPTERA 



On actually comparing it with dorsalis this species seems much 

 more distinct than might be inferred from the description, the very 

 large prothorax, somewhat wider than the head and the more 

 strongly angulated elytra near basal third, together with the greater 

 convergence of the sides from the angulation to the tip, the latter 

 being relatively less obtuse, impart an evident difference in habitus. 



Cicindela apricoidea n. sp. A little larger and stouter than saulcyi, 

 obscure aeneous, the under surface aeneous with green reflections; head 

 large, shining, the labrum well developed, the anterior edge almost even, 

 with the tooth long and very acute; prothorax rather narrower than the 

 head, feebly alutaceous, the sides at base distinctly swollen, the white 

 pubescence as usual; elytra (9) only very feebly swollen at the sides 

 near basal third and broadly rounded, thence feebly narrowing to near 

 apical third, the sides then rapidly converging to the rounded and finely 

 serrulate apices. Length (9) 10.5-11.0 mm.; width 4.2 mm. Sea- 

 beaches of Louisiana and Mississippi. Four very homogeneous examples. 



The examples at hand all have the elytra white, the suture nar- 

 rowly dark, more broadly so basally and slightly green in the intra- 

 humeral impression; the punctures are fine but rather close-set. 

 Apricoidea is larger and stouter than saulcyi and has a very much 

 larger head ; it is correspondingly smaller than media of the southern 

 Atlantic coast and relatively much more abbreviated, with less 

 pubescent medial parts of the pronotum, very much more swollen 

 sides of the thoracic base and more obtuse lateral prominence of 

 the sides of the elytra in the female; indeed there is scarcely any 

 prominence at all. This species however almost exactly resembles 

 castissima Bates, as figured, but the prothorax is relatively smaller 

 and more trapezoidal, the elytra more parallel at the sides, less 

 narrowed behind, the apices rounded and not quasi-truncate and, 

 finally and most decisively of all, the labrum has a strong and acute 

 medial tooth as usual; it is said to be edentate (!) in castissima, 

 the type of which is also a female. 



Of dorsalis there is a form well known and generally found in 

 company with it, that has lost nearly all the dark lines of the elytra, 

 the latter being white, excepting the suture expanded slightly at the 

 middle and a feeble intra-humeral streak. This is simply an albino 

 form of dorsalis in all probability, as examples occur which are inter- 

 mediate in marking. 



Semipicta Csy. is a species readily distinguishable from dorsalis 

 by its more elongate and subparallel form, much less abbreviated 



