KEVISION OF GENUS TACHYPORUS — BLACKWELDER 49 



Lectotype. — Acad. Nat. Sci. Phila. no. 3138, from "Can." 

 Localities represented. — The present collection contains specimens 

 from the following localities: Massachusetts, New York, New Jer- 

 sey, Pennsylvania, Maryland, West Virginia, Michigan, Indiana, 

 Illinois, Iowa, Nebraska, Manitoba. The Horn collection contains 

 also a specimen from Oklahoma. 



Remarks. — The extent of the scutellar spot is variable. It may 

 become so large as to cover the entire width of the elytra in basal 

 fourth and even enlarge posteriorly again along the margin. 



TACHYPORUS SNYDERI, new species 



Form robust and convex. Black; antennae, trophi, legs, pro- 

 thorax, and elytra testaceous ; elytra indefinitely marked with black 

 at the scutellum and along the suture, with an indefinite humeral 

 stripe extending for two-thirds the length and an indefinite spot 

 near the suture just behind the middle. Antennal segments all 

 longer than wide, eleventh almost twice as long as the tenth, ex- 

 panded and obliquely truncated. Third segment of maxillary palpi 

 feebly expanded, fourth two-thirds as long, acicular. Pronotum 

 with sides nearly straight from basal third ; not wider than elytra. 

 Elytra irregularly but not closely punctured, each puncture exca- 

 vated behind; no sutural series of larger punctures, lateral series 

 of three punctures, and with an additional discal puncture near the 

 humerus. Abdomen above more regularly punctate than elytra, 

 but similarly excavated; below more coarsely punctured and with 

 an apical series of six or eight large muricate punctures along the 

 posterior border of segments 5 to 8. Eighth tergite of male evenly 

 rounded; eighth sternite with triangular notch, about as wide as 

 deep. Eighth tergite of female -i-lobed, the median pair narrower 

 and separated only two-thirds to base; eighth sternite broadly 

 rounded and Vv^ith a single series of silken hairs. 



Type locality. — Jacksonville, Fla. 



Types. — Holotype (a male from Jacksonville, Fla., taken with 

 Reticulitermes sp. by Dr. T. E. Snyder) and 3 paratypes, U.S.N.M. 

 no. 50889; 1 paratype in collection of the writer. Paratypes from 

 Alabama (Selma), Washington, D. C, and Kentucky (Henderson). 



Remarks. — The color pattern of this species is quite distinct and 

 is constant on the four specimens available. The paucity of ma- 

 terial is probably due to lack of collecting rather than to rarity 

 of the species. 



TACHYPORUS TEMACUS. new species 



Form robust and convex. Piceous-black ; antennae, trophi, pro- 

 thorax, elytra, and legs testaceous; elytra darker at suture and 

 humeral margin, with median sutural spot; apex of abdominal 



