22,4 Horn: The Genus Prothyma and other Cicindelinse 3(J1 



Long. 14-15 mm. (sine labro). 



Insula Panay, Antique, Culasi (McGregor) a Dom W. Schultze 

 mihi data : 1 2 in collectione mea, 1 $ in collectione W. Schultze. 



This species differs from Prothyma hopkinsi by being larger; 

 labrum dark with an irregular, yellow disk; frons between the 

 eyes with a large central impression ; pronotum cylindrical, only 

 slightly convex, densely transversely striate. Elytra slightly 

 more flattened, uneven, with the impressions as described above; 

 more roughly and deeply sculptured throughout. Sculpture 

 crenulate-confluent on apical half (except near the lateral mar- 

 gins where the individual punctures are separated and not deep) . 

 The individual crenulations sometimes occupy three-fourths of 

 the width of the elytron ; the whole dorsal surface is of a dull, 

 dark brown coppery bronze. Sides of vertex and pronotum 

 bluish green; lateral borders of elytra dark purple-violet, with 

 a short greenish blue submarginal stripe in the basal fourth 

 mediad of the marginal color. There are two or three pale 

 yellow spots on each elytron; a small humeral dot, sometimes 

 lacking, a short oblique middle patch extending to disk and 

 becoming slightly more remote from margin than in P. hopkinsi. 



Many years ago Prof. Charles S. Banks sent me a male, 13 

 millimeters in length, of a new Prothyma, from the Bureau of 

 Science collection, Mount Canlaon, Negros (800 meters), for 

 study and I have dedicated this new species to him. 



The penis of this specimen has, according to my notes, a 

 "plain bulky apex." 



Philippine species of the genus Prothyma. 



1. Labrum metallic. Small species (8.5 to 9.5 millimeters exclusive of 



labrum) ; apex of penis moderately tapering with the tip (turned 

 toward concave side) showing a very short hook directed to concave 



(left) side. Tibia? often more or less yellow 2. 



Labrum yellow or yellow and dark; a larger species (10.5 to 14 milli- 

 meters) ; apex of penis variable in length. Tip never showing a 

 hook or angle directed toward the concave (left) side. Tibia? dark 

 metallic 4 - 



2. Dorsum of head and pronotum very brilliant, the sculpture very fine 



or obsolescent. Pronotum very convex P. lucidicollis Chaud. 



Dorsum of head and pronotum not brilliant; their sculpture fine and 

 dense. Pronotum less convex or even plane 3 - 



3. Pronotum and elytra short. Dorsal surface coppery, with green reflec- 



tions caudad of humeral angles. Middle spot of elytra not smaller 



than the anteapical one.... P. lucidicollis subsp. heteromallicollis Horn. 



Pronotum and elytra more elongate. Dorsal surface entirely or at 



least its greater portion blue. Segments 2 to 4 of antenna? often yellow. 



