no. 3601 TRIPLAX AND HAEMATOCHITON — JOHNSON 9 



tion thereof provide strong evidence that figure 11 is indeed that of a 

 form that should be considered Triplax. 



Male genitalia: Male not known. 



Type: Not seen. 



Distribution: Costa Rica. 



Triplax errans Boyle 



Figure 3 



Triplax errans Boyle, 1956, p. 110. 



Diagnostic description: Head above and gular region below black, 

 pro thorax and antennal clubs black; elytra and scutellum orange red 

 to brilliant strongly nitidous red (except in tenerals) ; antennae grading 

 from brownish yellow to black; genae, mouthparts, pterothorax, 

 abdomen, and legs brownish yellow; body strongly nitidous. Overall 

 shape short and broad, sides of body subparallel from middle of 

 pronotum to middle of elytra, lengh to width ratio 1.8 to 1; body 

 widest at about one- third the elytral length behind base; pronotum 



Figure 3. — Triplax errans Boyle: 

 underside of head. 



widest just in front of base, sides evenly arcuate and strongly con- 

 vergent apically. Postmandibular lobes, terminal segments of 

 maxillary palpi, and mentum are shown in figure 3. Antennae 

 two-thirds as long as width of pronotal base, the club 5-segmented 

 and gradually widening over segments 7 to 9. Pronotal punctures 

 of moderate size, somewhat larger and denser laterally, each bearing 

 a minute seta that feebly exceeds the puncture; cephalic punctures 

 denser apically, each bearing a protruding seta; elytral intervals 

 minutely punctuate. 



Variation: The 35 specimens examined ranged in length from 2.85 

 to 4.34 mm and in width from 1.57 to 2.51 mm. Boyle (1956) states 

 that the measurements of the type are: length 4.14 mm; width 2.30 

 mm. 



Male genitalia: Boyle (1956, p. 166, fig. 99) illustrates the anterior 

 end of the internal sac. 



Type: Male; labeled "Brownsville, Texas, VI-30-38; holotype, 

 Triplax errans Boyle" (R. I. Sailer; collection University of Kansas). 



