IMOXOGRAPH OF WEST INDIAX STAPHYLI>,IDAE 271 



4. Head with many larger umbilicate punctures scattered among dense small 



ones 2. matasana 



Head without larger umbilicate punctures 1. johni 



5. Pronotum distinctly punctate; midline not deeply canaliculate 6 



Prouotum not distinctly punctate ; midline deeply canaliculate— 5. cubanum 



6. Pronotum punctured as head, not very densely 4. trinitatum 



Pronotum very densely punctate, more densely than head 3. dominicanum 



1. MEDON JOHNI, new species 



Description. — Piceous, pronotum generally rufescent, elytra and 

 base of abdomen castaneous, apex of abdomen testaceous. Head one- 

 ninth wider than long, base not emarginate, sides rounded into base 

 from eyes; eyes large, at a little less than their length from base; 

 labrum with two distinct denticles near middle in a rather wide 

 emargination ; gular sutures moderately separated in front, becoming 

 A'ery close posteriorly ; with dense but not large umbilicate punctures, 

 separated by narrow convex intervals ; without distinct ground sculp- 

 ture. Pronotum as long as wide, one-tenth narrower than head ; sides 

 feebly converging posteriorly and rounded into base ; disk impressed 

 on either side along midline posteriorly; midline narrowly smooth 

 and shining ; with dense but feebly developed tuberculi, each bearing 

 a minute punctule and hair at top, separated by less than their diameter 

 by smooth shining intervals. Elytra with moderate punctures ob- 

 scured by submuricate or tuberculate rugosities ; with long pubescence. 

 Abdomen densely and finely punctate, more sparsely apically. Male^ 

 seventh and eighth sternites not modified. Female^ externally indis- 

 tinguishable from male. Length, 4 mm. 



Type locality. — St. Lucia, one-half mile northwest of Duboulay 

 Estate on road to Soufriere, district of St. Eemy. 



T'y^e^.—Holotype and 32 paratypes, U.S.N.M. No. 52408, collected 

 by me in April and May 1936 ; two paratypes from Dominica. Two 

 paratypes have' been deposited in the British Museum, two in Dr. 

 Cameron's collection, and two in my ow^n collection. 



Records. — The following are the records known to me : 



Dominica: (Blackwelder station 237) . 



St. Lucia: (Blackwelder station 207B, 220D, 221, 224, 226, 227, 230, 231). 



Specimens examined. — I have seen only the 40 types. 



Remarks. — I find considerable variation in the labrum of this species. 

 In several there are two hairs arising between the denticles which seem 

 to mark two minute additional denticles; in some the edges of the 

 emargination are angular and almost denticlelike; and in some the 

 two teeth are so reduced as to be rather indistinct. This species belongs 

 in the subgenus Medon s. str. 



I have collected this species from cut banana stalks and from rotting 

 cocoa pods. 



