BY THOMAS G. SLOANE. 299 



A very distinct species having the facies and punctate elytra 

 of a member of the G. tenuicoUis- group, but belonging to the G. 

 nigrina-group by form of labrura; mesosternum, and metasternum 

 glabrous; labial palpi slender; median tooth of mentum long, &c. 



CiCINDELA DARWINI, n.Sp. 



Labrum short, with four submarginal tactile setae. Mentum 

 with median tooth long. Labial palpi slender, apical joint long. 

 Prothorax and elytra subdepressed; pronotum glabrous. Elytra 

 glabrous, apex in 9 excised, and with a strong sutural spine; in 

 (J not excised, and with short sutural mucro. Head, mesosternum 

 and metasternum glabrous. Proepisterna sparsely beset with 

 setigerous punctures. Posterior coxae with a fringe of white 

 hair above declivity of outer side. Upper surface cupreous-green 

 or bronze; elytra 3-maculate on each side — an elongate narrow 

 humeral lunule, a small median spot, and a narrow apical lunula 

 yellowish; under surface shining, cupreous with coppery and 

 greenish reflections; legs cupreous, tarsi purple; antennae with 

 four basal joints bronzy, other joints infuscate; labrum of a dirty 

 yellowish colour; mandibles bronzy-green, yellowish near base, 

 black at apex. 



Head (2-25 mm. across eyes) closely and decidedly shagreened, 

 very lightly concave between eyes. Labrum short, with four 

 submarginal punctures rising from greenish punctures (one near 

 each outer angle, and two near one another in middle, as in G. 

 nigrina Macl.); anterior margin in ^ lightly arcuate, in 9 strongly 

 advanced in middle, with a well marked tooth on each side of 

 median prolongation, the distance between the teeth slightly 

 greater than that between the inner submarginal setae. Prothorax 

 subquadrate (1-75 x 2 mm); disc depressed, strongly and closely 

 shagreened, lightly transversely impressed anteriorly and pos- 

 teriorly; sides lightly arcuate; posterior angles distant from basal 

 margin — in ^ obtuse and hardly marked, in 5 obtuse but decidedly 

 marked. Elytra subdepressed (52 x 2*75 mm.), much wider at 

 base than prothorax; sides subparallel; apical curve serrate. 

 Length, $ 8, breadth 2*75 mm. 



Hah. — Port Darwin (Dodd). Colls. Sloane and Horn. 



