(205) 
multo minoribus, latitudine sensim crescentibus, capitulo orbi- 
eulari, 3:annulato (fig. 57). Pronotum haud transversum immar- 
ginatum. Prosternum processu distineto. Tibiae sublineares 
rectae, apice oblique truncatae, extus spinuloso-dentatae. 
1. T. BICOLOR, Herbst. 
Fusco-piceus, subnitidus, longius pubescens, thorace antrorsum 
angustato, lateribus subrotundatis, dorso post medium transver- 
sim impresso, elytris cylindricis, densissime subliliter punctato- 
striatis. 
Long. 2-2,5 mm. 
Mas : Fronte depressa pilis longioribus densissime obtecta, elytris 
apice convexe rotundalo. 
Fem. : Fronte convexa, pilis parce adspersa, elytris apice circulatim 
plane retuso, mutico, sutura subelevala. 
Bostrichus bicolor, HErBsT, Kaëf., V, 1795, p. 116, tab. 48, fig. 16. — 
* Rarzes., Forstins., 1837, [, p. 161; 1859, 1, p. 196, 8, tab. 12, fig. 9, 10, 
tab. 21, fig. 5. — NoeroL., Sfelt. ent. Zeit., 1848, p. 241. — Bacu, Karef., 
1854, 11, p. 124 et 132, 15. — Doeex., Zoo!., 1862, II, p 180. 
Ips fuscus, Marsx., Ent. Britt., 1802, 1, p. 55, 5. 
Bostrichuns fuscus, STEPH. [/l. Brill., II, p. 556. — GyLL., Ins. Suec., 1815, 
HI, p. 560, 7 (Q). 
Tomicus fuscus, THoms., Scand. Col. VIL, p. 566, 7. 
Bostrichus retusus, Des. Cal. ed. 1, p. 101 (©). 
Dryocoetes hicolor, * FErr., Borkenk., 1867, p. 28 et 51, nota 2. — REDTEN&., 
Fn. Aust., 1874, ed. III, p. 581. 
Var. b. Elytris piceis. 
-Var. c. Totus brunneo-testaceus vel elytris posterius infuscatis. 
Dryocoetes tristiculus, * FERR., Borkenk., 1867, p. 28, 8 (immaturus). 
Sequenti adeo similis et propinquus ut latius describere ne- 
cesse videatur. Caput parvum, fusco-nigrum, fronte in maribus 
depressa, pilis longioribus pallidis vel flavescenti-griseis, erectis 
densissime obtecta, in feminis leviter convexa, crebre subgranu- 
lato-punciata, pilis longioribus parcis, in margine anteriore den- 
