EEVISION OF ELEODIINI BLAISDELL. 419 



many years' residence in San Diego County and after collecting over 

 the entire western half of the countj^ I had not a single specimen. 



Number of specimens studied, 3 ; one a LeContian cotype. 



Type in the LeConte collection in Cambridge, Massachusetts. 



Type-locality. — San Diego, California. 



Salient type-characters. — Elongate. Thorax convex with the sides 

 rounded and slightly narrowed behind, finely and sparsely punctulate. 

 El3'tra elongate oval, declivous and obliquel}' attenuate behind, finely, 

 sparsely, and scarcely seriately punctulate (LeConte). 



Diagnostic cliaracters. — Closely allied to gigaiitea but very much 

 smaller, with thorax less rounded on the sides and less narrowed 

 toward base. 



In gentilis the elytral punctulation is a little coarser than in gigan- 

 tea. 



One specimen before me measures 27 mm. and is as large as an or- 

 dinary gigantea. 



There is something strange about the manner in which gentilis has 

 been misunderstood, and it has given me more trouble to study it out 

 than any other species: it was with a feeling of deep satisfaction 

 when, through the kindness of Mr. Samuel Henshaw, I Avas permitted 

 to receive one of LeConte's cotypes through transmission from the 

 museum in Cambridge, Massachusetts. Two of the specimens already 

 in the material at hand had been referred to gigantea. Mr. Blanchard 

 truly defined gentilis when he wrote me that it looked to him like a 

 small fusiform gigantea. 



A specimen in Mr. Ralph Hopping's collection was wrongly identi- 

 fied when received by him and bears the number 7337, and was evi- 

 dently received from Reinecke, for this name is on the label. This 

 shows how the earlier collectors obtained these specimens, while all 

 recently collected material yields no examples of this race. 



E striata is a modified gentilis. It is more glabrous, the eh^tra of 

 the male is more inflated and with a tendency to become widest behind 

 the middle. 



The male in its genital characters shows some approach to innocens 

 in the oval chitino-membranous area of the apicale of the edeago- 

 phore, while the same characters in estriata are intermediate be- 

 tween gentilis and gigantea. But these characters are no doubt 

 subject to considerable individual variation. 



GentiKs therefore appears to be nothing more than a race of 

 gigantea, LeConte's types being simply an extreme nanoid form, 

 while Hopping's specimen has the normal size of gigantea. The 

 females probably do not differ from the general form of the female 

 gigantea^ the males being dimorphic. 



General ohservations. — The mentum is trapezoido-parabolic in out- 

 line and comparatively small, setose, the setso being moderately long 



